Thursday, July 31, 2008

31 July 2008

Sunspots Observed

I haven't seen a spot since 30Mar08.

Observing Hours for the Year 2008

 DayNightTotal
HoursDaysAvgHoursDaysAvgHoursDaysAvg
Jan2.2590.252.7550.555.00130.38
Feb3.2590.368.2571.1811.25120.94
Mar5.25100.538.50120.7113.75160.86
Apr6.25190.335.75 70.8212.00190.63
May6.50180.362.25 50.45 8.75180.49
Jun5.25200.2612.00 81.5017.25210.82
Jul5205150.3715.25101.5320.75171.22
TOTAL34.251000.3454.75541.0189.001170.76

Climate Summary for June 2008

The daily high temperature was greater than the normal high temperature 75% of the time and the low temperate was higher than the normal low temperature 78% of the time. The daily mean temperature was higher than the normal mean temperature 71% of the time.

We only had rain 10 days this month and only 0.1" or precipitation on 5 of those days. Where we ended last month with nearly an inch more precipitation than normal and nearly normal precipitation for the year we are ending this month over 1.75" below normal on both of those measures. I would be starting to worry about a drought if I didn't know that our water doesn't come from here. A check of the reservoir capacity shows that it is near normal for this time of year.

There were more degree days 71% of the time and normal degree days 10% of the time.

Monday, July 28, 2008

28 July 2008

Observing LocationCT
Observational Period1015-1030 EDT
Atmospheric Conditions
Cloud CoverHazy
Overcast
Temperature75° F
WindCalm
HumidityHigh
Barometric Pressure28.87" Hg
Steady
Feels LikeWarm

The sky is a uniform white although I can not see any clouds. Central park is reporting clear and LaGuardia haze. It doesn’t feel as humid as is being reported.

TransparencyPoor
SeeingI
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationCnc
CategorySolar
Time
yyyymmdd.hhmm
20080728.1015 EDT
Comments
Distance
Light Time
1.02 AU
8m 27s
Angular Size31' 33.2"
Altitude48.3°
Heliographic Latitude
(B0)
5.55°
Heliographic Longitude
(L0)
74.05°
Parallactic Angle
(P)
9.57°
Carrington rotation number
(CR)
2072

Nothing Seen
There is nothing on either the SOHO images or in Active Regions Explorer on the Earth-facing side of the Sun. Active Regions Explorer is showing that the pore of 1000 has just rotated onto the away-facing side.

 Groups SpotsR
North0 0 0
South0 0 0
Total0 0 0
R = (Groups * 10) + Spots)

Saturday, July 26, 2008

26 July 2008

Observing LocationPKR
Observational Period0945-1000 EDT
Atmospheric Conditions
Cloud CoverClear
Temperature78° F
WindCalm
HumidityModerate
Barometric Pressure30.05" Hg
Falling
Feels LikeWarm

It feels warm out and hot when you are in the sun. The sky could be bluer.

TransparencyGood.
SeeingI
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationCnc
CategorySolar
Time
yyyymmdd.hhmm
20080726.0945 EDT
Comments
Distance
Light Time
1.02 AU
8m 27s
Angular Size31' 32.28"
Altitude43.1°
Heliographic Latitude
(B0)
5.39°
Heliographic Longitude
(L0)
100.79°
Parallactic Angle
(P)
8.74°
Carrington rotation number
(CR)
2072

Nothing Seen
There is nothing showing on the SOHO image. Active Region Explorer is showing a pore where 1000 used to be that is about to rotate to the back side of the Sun.

 Groups SpotsR
North0 0 0
South0 0 0
Total0 0 0
R = (Groups * 10) + Spots)



Observing LocationSouth Street Seaport area; Peck slip, Pears/Water Sts
Lat.: 40° 42' 30.86"
Long.: -74° 0' 7.61"
Observational Period2315-2330 EDT
Atmospheric Conditions
Overcast ?
Cloud Cover
Temperature75°
WindLight Breeze
HumidityModerate
Barometric Pressure29.87" Hg
Steady
Feels LikeMild

The sky looks clear but I can only see one star which I am assuming is Jupiter.

TransparencyPoor
Seeing 
InstrumentsNaked-eye - Charlie
Observing PartyCharlie Ridgway
I had hoped to see the ISS and a Mag. -7 Iridium flare tonight after the chantey sing but my environment was working against me. I don’t think my skies were clear as the weather history for Central Park is reporting. And my horizon was too high to see the ISS and only allowed a small window between buildings for the Iridium. And it looks like I jumbled my listing of the data for the Iridium and was looking 2° west of where the flare should have been. With an open horizon that would not have been a problem but in this case the flare might have occurred behind the left hand building forming the margin of my window.



Backing out some old email I came across an article at Spaceflight Now that says NASA wants to modify the launch dates of the next two shuttle missions. They had originally asked that each mission be moved forward by six days but have modified that request to three days.

MissionInitial Date1st ModificationCurrent Modification
STS-125
HST Servicing Mission
8Oct08
0130 EDT
2Oct085Oct08
0302:18 EDT
STS-12510Nov08
2128 EST
Nov087Nov08
2239 EST

Action on the requested launch target modifications is not expected until 12Nov08.

If the modified modifications are accepted the mission profiles would be as follows:

STS-125
5Oct05
0302:18 EDT
Launch
7Oct08
0128 EDT
HST graple
2017 EDT
First of 5 daily spacewalks
12Oct08
2113 EDT
HST release
16Oct08
0004 EDT
KSC landing
STS-126
7Nov08
2239 EST
Launch
~2247 EST
MECO
NYC flyby
9Nov08
2011 EST
Docking to ISS
22Aug08
1702 EST
KSC landing

On the HST mission it is going to take them two days longer to get home that it will take them to get there. I am assuming that those two days will be spent in the neighborhood while initial tests are done in case something didn't go right.

I had assumed that it would be possible to see STS-125 as it flew past NYC, but now realize that the trajectory to to HST isn't the same as that to ISS and it might not fly past NYC.

Spaceflight Now article

Friday, July 25, 2008

25 July 2008

Observing LocationCT
Observational Period1015-1030 EDT
Atmospheric Conditions
Cloud CoverScattered Clouds
Temperature75° F
WindCalm
HumidityModerate
Barometric Pressure30.13" Hg
Steady
Feels LikeHot

It feels hot when out in the sun and very warm when in the shade. There are lots of clouds that appear to be partially high cirrus mares tales, some stratus sheets beneath them and some cumulus building out of the sheets – a very confused sky.

TransparencyGood
SeeingI
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationCnc
CategorySolar
Time
yyyymmdd.hhmm
20080725.1015 EDT
Comments
Distance
Light Time
1.02 AU
8m 27s
Angular Size31' 32.7"
Altitude48.8°
Heliographic Latitude
(B0)
5.31°
Heliographic Longitude
(L0)
113.74°
Parallactic Angle
(P)
8.33°
Carrington rotation number
(CR)
2072

Nothing Seen
There is nothing visible in the SOHO images and only one pore on each side of the Sun in Active Region Explorer.

 Groups SpotsR
North0 0 0
South0 0 0
Total0 0 0
R = (Groups * 10) + Spots)



Observing LocationPKR
Observational Period0945-1000 EDT
Atmospheric Conditions
Cloud CoverClear
Temperature79° F
WindCalm
HumidityModerate
Barometric Pressure30.06" Hg
Steady
Feels LikeMild

There is a horizontal stripe of cloud (not dissipating contrail) just above the opposing apartment buildings. The humidity doesn’t feel as high as the numbers indicate. Initially I estimated transparency as excellent but downgraded that to good after I started observing. There didin’t appear to be any variation in the air.

TransparencyGood
SeeingI
Instruments SAR: Coulter CT-100 Newtonian reflector - Charlie
  • CelEDTron Omni 20mm (21x)
  • CelEDTron Omni 2x Barlow
I should have brought a binocular with me to help me to locate the stars that I wasn’t able to see naked eye and could not see enough of in the reduced FoV of the scope.
Observing PartyCharlie Ridgway
2019 EDTSunset
Civil Twilight begins
1050 EDTCivil Twilight ends
Nautical Twilight begins
2055 EDTIt was dark enough that Antares was observed scintillating

TargetJupiter
ConstellationSgr
CategoryPlanet
Time
yyyymmdd.hhmm
20080725.2120 EDT
Comments
Object
Class
Classical Planet
Elongation161.9° E
Distance
Light Time
(from Earth)
4.20 AU
34m 54s
Distance
(from Sun)
5.17 AU
Angular Size46.9" x 43.9"
Magnitude-2.7
Central Meridian
I/II
58°/283°
Altitude18.6°
Moons

Starry Night Starter graphic


Starry Night Starter graphic

Jupiter is nicely framed by a triangle of stars that are fainter than the moons.


Cartes du Ciel graphic
(SAR orientation)

The coma in SAR is bad. The top of Jupiter is salmon and the botton turquoise. Even an untrained observed commented on it unprompted. There is a ghost image of the planet to the lower right. Later in the evening, at high power I detected banding off the western limb.

Ganymede is out to the west of the planet by about 1.5 planet diameters and is by itself. Io is about a planet diameter away from Jupiter to the east followed by Europa about 1.5 diameters more distant and lastly Calisto on the end of the line another 2 diameters farther east. By 2240 EDT Io had moved closer to Calisto – almost the reverse spatial relationship between Jupiter, Io and Calisto as what was initially observed.

2129 EDTNautical Twilight ends
Astronomical Twilight begins

TargetM4, Cat’s Eye Cluster, NGC 6121
ConstellationSco
CategoryDSO: GCl
Time
yyyymmdd.hhmm
20080726.2140 EDT
CommentsI can see a faint spot of gray light where the cluster should be. It appears to be bigger than a star but is fairly sharpely resolved – as sharply as the coma of SAR will allow. It is possible that the coma is making it appear larger than it should be, but that is not the case with nearby stars so I think I was seeing the cluster. Planetarium shows one Mag 8.08 star nearby that I did not know about (I forgot to bring the Palm and was dealing only with the Pocket Star Atlas). The cluster is Mag 5.9 but that is spread over 26.3’ ov arc. I am not sure what that does to the relative brightness of the two objects, but still think I was seeing the cluster.

Starry Night Starter graphic

2213 EDTAstronomical Twilight ends
2345 EDTJupiter transits
2349 EDTMoon rises

I tried hopping to some of the clusters in Sco and Sgr without luck. Sco is too low on the horizon and the good stuff is behind the apartment buildings. Without Planetarium I wasn’t able to figure out where Jupiter was in Sgr, although it was where I thought it was, and wasn’t seeing enough stars to be sure of my hop through the constellation up to the cover of the teapot. Also every time I would get somewhere and go to the atlas to try and figure out what I was seeing someone would come up and I would end up back on Jupiter.

There were ISS visible passes at 2126 and 2302 EDT but both were too low on the horizon to be seen from here and were only Mag 1.1.

There was a Mag -7 Iridium flare at 2325 EDT and a Mag -1 at 2332 EDT but I didn’t think to look at my pass listings when I got home and missed both of them.

I stopped along the oval to just look and think I might have seen a meteorite streaking across the sky from near Deneb to near Altair. Planetarium does not indicate any active meteor streams in that area now. It also might have been a moth catching area lights under its wings.

Monday, July 21, 2008

21 July 2008

Observing LocationCDLD
Observational Period0830-0945 EDT
Atmospheric Conditions
Cloud CoverBroken
Temperature72° F
WindLight Breeze
HumidityModerate
Barometric Pressure30.04" Hg
Rising
Feels LikeH3

Lots of clouds around and haze where there aren’t. It is already humid. It rained lightly overnight but it is so humid that the sidewalks are still wet.

TransparencyPoor
SeeingII
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

I got out of the house early this morning so spent more time counting cicada calls.

StartEndDuration
08:38:0408:38:0602
08:38:3908:38:4304
08:39:0408:39:1410
08:39:3408:39:3905
08:40:0908:40:1506
08:40:2008:40:2606
08:40:2008:40:2606
08:41:0908:41:1708
08:41:0908:41:1708
08:41:3508:41:4207
08:41:5508:42:0308
08:42:1708:42:2508
08:43:0608:43:1307
08:50:0008:50:0606
09:13:2609:13:3206
09:17:5409:18:0006
09:18:1709:18:2306
09:18:3709:18:4306
09:19:0109:19:0605
09:19:2009:19:2404
09:19:5009:19:5303
09:20:1609:20:2105
09:20:4809:20:5406
09:21:5109:21:5504
09:22:4009:22:4404
09:22:5909:23:0405
09:23:2709:23:3306
09:23:5409:23:5905
09:24:2109:24:2605
09:25:0509:25:1308
09:26:2409:26:3107
09:26:5409:27:0309
09:27:4709:27:5407
09:28:4709:28:5407
09:29:2009:29:2707
09:30:3009:38:3505
09:31:2809:31:3305
09:33:2709:33:3306
09:34:1209:34:1907
09:34:1909:34:2607
09:34:3909:34:4405
09:34:4409:34:5208
09:35:0809:35:1507
09:35:3109:35:3504
09:36:5009:36:5505
09:38:0009:38:0404
09:38:1509:38:2510
09:38:5409:39:0511
09:39:2009:39:3212
09:39:4409:39:5107
09:40:1009:40:1707
09:40:2509:40:2904
Average Duration00:00:06

I also observed an ant colony that happened to be at my feet. The colony was composed of tiny ants that were nesting in a mass of seeds that had been blown up against a concrete boarder to a macadam sidewalk. The nest must be confined to the mass of seeds, which wasn't very thick, and be more horizontal than vertical. The tiny ants were busy trying to get a large piece of detritus into the small colony opening. A couple of large ants approached the nest from different directions and went as far as the pile of seeds but not onto it while they thoroughly explored adjacent seed piles. A horsefly landed on the margin of the seed pile and did not molest nor was it molested by the ants. Later a smaller fly landed right at the entrance to the colony and seemed to be looking for ants to eat but they kept on working, apparently oblivious to it.

Target Sunspots
ConstellationCnc
CategorySolar
Time
yyyymmdd.hhmm
20080721.0940 EDT
Comments
Distance
Light Time
1.02 AU
8m 27 s
Angular Size31' 32.1"
Altitude42.8°
Heliographic Latitude
(B0)
4.96°
Heliographic Longitude
(L0)
166.98°
Parallactic Angle
(P)
6.63°
Carrington rotation number
(CR)
2072

Nothing Seen
Space Weather is no longer showing any spots but Group 1000 is still being shown on Active Regions Explorer.

 Groups SpotsR
North0 0 0
South0 0 0
Total0 0 0
R = (Groups * 10) + Spots)



Another Dwarf Planet. The IAU has just given the object 2005 FY9 the name Makemake, (the Polynesian fertility god). It is the fourth dwarf planet. Makemake is a little smaller and fainter than Pluto (too small and faint for my optics but possibly within reach of Peter's 10" Teleport). It is a transneutoinian object is also classified as a plutoid (the third, the other two being Pluto and Eris).

That name seemed very familiar to me, but it wasn't until I read the article that it connected with my visit to Easter Island.

Spaceflight Now story



Observing LocationPSC
Observational Period2045-2245 EDT
Atmospheric Conditions
Cloud CoverIsolated Clouds
Temperature86° F
WindCalm
HumidityModerate
Barometric Pressure29.80" Hg
Steady
Feels LikeHot

The air doesn’t feel humid but it is still hot.

TransparencyExcellent
Seeing 
InstrumentsNaked Eye - Charlie
Observing PartyCharlie Ridgway

2022 EDTSunset
Civil Twilight begins
2054 EDTCivil Twilight ends
Nautical Twilight begins

TargetISS Visible Pass
ConstellationVir-Leo-UMa-Dra-Cam-Cep-Cas-And
CategorySatellite
Time
yyyymmdd.hhmm
20080721.2120 EDT
CommentsThe ISS rose from behind a building and tracked across the sky passing between Alpheca and Merac and then between Megrez and Dubhe before passing below Polaris.
  StartsMax. Alt.Ends
H A
e b
a o
v v
e e
n  
s  
Time2120:57 EDT2123:45 EDT2126:36 EDT
Alt.10°44°10°
Az.WSWNNWNE
Mag-1.0
C
a
l
S
k
y
Time2122:54 EDT2127:39 EDT2132:27 EDT
Alt.horizon39.9°horizon
Az.248.6°
WSW
329.2°
NNW
49.8°
NE
Mag+0.3-2.5-0.5

2134 EDTNautical Twilight ends
Astronomical Twilight begins
2207 EDTMoon rises
2219 EDTAstronomical Twilight ends

There was an Iridium flare at 2142 but it was only at 11° altitude and only a Mag 0 event so wasn’t worth moving to try to catch it.

Sunday, July 20, 2008

20 July 2008

Observing LocationPSC
Observational Period1115-1130 EDT
Atmospheric Conditions
Cloud CoverScattered Clouds
Haze
Temperature87° F
WindGentle Breeze
HumidityModerate
Barometric Pressure29.94" Hg
Falling
Feels LikeH3

It is very warm even in the shade. The breeze isn’t doing much to mitigate the temperature.

TransparencyGood
SeeingI
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationGem
CategorySolar
Time
yyyymmdd.hhmm
20080720.1115 EDT
Comments
Distance
Light Time
1.02 AU
8m 27s
Angular Size31' 31.9"
Altitude59.9°
Heliographic Latitude
(B0)
4.88°
Heliographic Longitude
(L0)
179.34°
Parallactic Angle
(P)
6.23°
Carrington rotation number
(CR)
2072

Nothing Seen
Space Weather is still indicating that Group 1000 is there but I can’t even see it on the high resolution SOHO image.

 Groups SpotsR
North0 0 0
South0 0 0
Total0 0 0
R = (Groups * 10) + Spots)




Greg Smith graphic from Wikepedia
I have been listening to the cicadas singing and have been wondering if there is any periodicity in their song so I started timing their calls while reading at home.

StartStopDuration
0817:430817:496s
0818:330813:418s
0823:450823:527s
0824:060824:115s
0824:380824:4810s
0825:000825:088s
0825:200825:288s
0825:460825:537s
Average Duration7s

Then it dawned on me that I was only hearing a portion of the calls through the insulated windows (which aren’t doing much to keep the heat outside) so I would be better off making my timings outside. So when I went out to observe the sun I moved to a shaded bench and sat there for 45 minutes making additional timings.

StartStopDuration
1122:091122:145s
1123:011123:076s
1126:591127:076s
1127:261127:337s
1127:351127:394s
1127:451127:527s
1127:521127:586s
1128:001128:077s
1128:551128:594s
1129:341129:406s
1130:091130:156s
1130:471130:514s
1136:401136:466s
Average Duration6s

The results weren’t that much different and I came to the conclusion that the better times probably came from inside the apartment because of the insulated windows. They only let the loudest calls in, which were probably from the closest insects. I suspect that the short calls recorded outside were from more distant insects and I was not hearing the full call.

Regarding frequency of call:
the data do not permit me to make an assessment since I can’t be sure that I am hearing the same insect every time.

Regarding duration of call:
calls lasted about 6.5 seconds.
?
does temperature have an impact on the duration of the call?

Wikipedia reference

Saturday, July 19, 2008

19 July 2008

Observing LocationVP
Observational Period0745-0800 EDT
Atmospheric Conditions
Cloud CoverScattered Clouds
Haze
Temperature79° F
WindLight Breeze
HumidityModerate
Barometric Pressure30.00" Hg
Rising
Feels LikeHot and Humid

It feels very humid already and today is another heat advisory day as well as there being an ozone alert in effect.

TransparencyGood
SeeingII
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationGem
CategorySolar
Time
yyyymmdd.hhmm
20080719.0745 EDT
Comments
Distance
Light Time
1.02 AU
8m 27s
Angular Size31' 31.7"
Altitude21.1°
Heliographic Latitude
(B0)
4.77°
Heliographic Longitude
(L0)
194.50°
Parallactic Angle
(P)
5.74°
Carrington rotation number
(CR)
2072

Nothing Seen Space Weather indicates spot 1000 moving toward the meridian in the southern hemisphere but it is so small that it can hardly be seen even in the high resolution SOHO image.

 Groups SpotsR
North0 0 0
South0 0 0
Total0 0 0
R = (Groups * 10) + Spots)



It is so hot here that the cicadas have stopped singing (or whatever it is that they do that is making alll the racket).

Friday, July 18, 2008

18 July 2008

Observing LocationCDLD
Observational Period0945-1000 EDT
Atmospheric Conditions
Cloud CoverClear
Very Hazy
Temperature82° F
WindCalm
HumidityModerate
Barometric Pressure30.04" Hg
Falling
Feels LikeHot

Today will be an H3 day. There is a heat advisory in effect for today and tomorrow. The haze was visible over the sun in the binocular.

TransparencyFair
SeeingII
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationGem
CategorySolar
Time
yyyymmdd.hhmm
20080718.0945 EDT
Comments
Distance
Light Time
1.02 AU
8m 27s
Angular Size31' 31.7"
Altitude44.1°
Heliographic Latitude
(B0)
4.69°
Heliographic Longitude
(L0)
206.63°
Parallactic Angle
(P)
5.34°
Carrington rotation number
(CR)
2072

Nothing Seen

 Groups SpotsR
North0 0 0
South0 0 0
Total0 0 0
R = (Groups * 10) + Spots)



For about a week I have been hearing isolated cicadas. There was a news story earlier in the summer saying that there should be a large hatching this year. It also said that they (I am assuming that is each one) can be as loud as a subway train (I am assuming that is an individual car but don’t know whether to assume that is from inside or outside of the car). Today I heard them through the insulated windows of my apartment while I usually don’t hear thunder until the storm is very close. It seems like there are more cicada out as the sound is nearly continuous and when I walk around outside the sound, which is hard to localize, seems to come from more directions.



Observing Location
Observational Period EDT
Atmospheric Conditions
Cloud CoverScattered Clouds
Temperature92° F
WindLight breeze
HumidityModerate
Barometric Pressure29.96" Hg
Steady
Feels LikeHot and Humid

It feels much more humid than the 42% the NWS is advertising. There are some clouds visible and only Vega and Deneb. Initially I didn’t even see the moons of Jupiter.

TransparencyPoor
SeeingII
Instruments SAR: Coulter CT-100 Newtonian reflector - Charlie
  • Celestron Omni 20mm (21x)
  • Celestron Omni 2x Barlow
Observing PartyCharlie Ridgway

TargetJupiter
ConstellationSgr
CategoryPlanet
Time
yyyymmdd.hhmm
20080718.2105 EDT
Comments
Object
Class
Classical Planet
Elongation169.4° E
Distance
Light Time
(from Earth)
4.17 AU
34m 42s
Distance
(from Sun)
5.17 AU
Angular Size47.2" x 44.1"
Magnitude-2.7
Central Meridian
I/II
30°/309°
Altitude12° 24’
Moons

Starry Night Starter graphic

There was too much atmosphere to see the moons initially. At 2210 EDT the close moons on both sides of the planet were visible. At 2320 EDT, when clouds covered the Moon I swung the scope over to Jupiter and all of the moons ere visible although Calisto was hard to find.

TargetMoon
ConstellationCap
CategoryLunar
Time
yyyymmdd.hhmm
20080718.2215 EDT
CommentsI didn’t think I was going to find any terminator features since it was so close to the limb and everything in that area is foreshortened and hard to identify but I did find some craters and was surprised at how much I identified over the surface of the Moon in the high noon lighting.

I was thinking that the Moon would be full at 0300 EDT tomorrow morning so was surprised when I looked at it in the scope and found that the NE limb was lumpy and the SW limb smooth – it was full this morning.

Lunation1058
PhaseWaning Gibbous
Age15d 23h 55m
Distance
Light Time
(from earth)
395,675 km
1.32s
Elongation171.3° W
% Illuminated99.4%
Morning Terminator Colongitude (λ E)102.8°
Evening Terminator Colongitude (λ W)282.8°
Libration in Latitude2° 24'
Libration in Longitude-3° 47'
Magnitude-12.4
Angular Size30.20'
Altitude10° 30'

Virtual Moon Atlas graphic

Terminator
In SunlightFeature
Diameter/Length; Class
In Shadow
<<< Mare Humboldtianum
273
 
<<< Belkovich
214
 
<<< Hahn
84
 
<<< Berosus
74
>>>
  Gauss
177
>>>
<<< Neper
137
>>>
<<< La Perouse
77
 
<<< Ansgarius
94
 
<<< Mare Smythii
373
>>>
<<< Humboldt
189
>>>

Grimaldi is very dark and Plato ~18% gray.

Even the rays of Tycho are subdued tonight but they are much more prominent that those of Copernicus.

I am not seeing any indication of Mare Orientale.

There has been very little limb boiling but the scope required constant refocusing.

Also identified:

  • Mare Imbrium
    • Montes Recti (90)
    • Montes Teneriffe (182)
    • Mons Pico (25)
    • Mons Piton (25)
    • Montes Archimedes (163)
      looks very large
    • Montes Spitzenbergen (60)
    • Mons Gruithuisen γ (20)
    • Mons Gruithuisen δ (20)
    • Guithuisen (15)
    • Timocharis (33)
    • Pytheas (20)
    • Archimedes (82)
    • Diophantus (17)
  • Mare Serenitatis
    • Posidonius (95)
    • Hall (35)
    • Kirchoff (24)
  • Mare Tranquilitatis
    • Maskelyne A
    • Montes Secchi (50)
    • Delambre (51)
    • Sabine (30)
    • Sinus Concordae (142)
    • Cauchy (12)
  • Mare Fecunditatis
    • Montes Pyrenaeus (164)
    • Gutenberg (74)
    • Goclenius (72)
    • Columbo (76)

Thursday, July 17, 2008

17 July 2008

Observing LocationPKR
Observational Period0900-0915 EDT
Atmospheric Conditions
Cloud CoverClear
Hazy
Temperature81° F
WindCalm
HumidityModerate
Barometric Pressure30.13" Hg
Steady
Feels LikeWarm

TransparencyGood
SeeingII
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationGem
CategorySolar
Time
yyyymmdd.hhmm
20080717.0900 EDT
Comments
Distance
Light Time
1.02 AU
8m 27s
Angular Size31' 31.6"
Altitude35.6°
Heliographic Latitude
(B0)
4.60°
Heliographic Longitude
(L0)
220.27°
Parallactic Angle
(P)
4.89°
Carrington rotation number
(CR)
2072



I just moved all of the 2008 entries over to Volume 2 of this blog which is at the address http://starsights2.blogspot.com

Wednesday, July 16, 2008

16 July 2008

Observing LocationVP
Observational Period1200-1500 EDT
Atmospheric Conditions
Cloud CoverClear
Temperature86
WindCalm
HumidityModerate
Barometric Pressure30.16" Hg
Falling
Feels LikeHot

It doesn’t feel too humid but it is very hot.

TransparencyExcellent
SeeingI
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationGem
CategorySolar
Time
yyyymmdd.hhmm
20080716.1200 EDT
Comments
Distance
Light Time
1.02 AU
8m 27s
Angular Size31' 31.5"
Altitude47.1°
Heliographic Latitude
(B0)
4.51°
Heliographic Longitude
(L0)
232.95°
Parallactic Angle
(P)
4.47°
Carrington rotation number
(CR)
2072

Nothing Seen
Active Regions Explorer isn’t showing anything on either side of the Sun.




Observing LocationMO
Observational Period2100-2400 EDT
Atmospheric Conditions
Cloud CoverIsolated Clouds
Temperature77° F
WindGentle Breeze
HumidityModerate
Barometric Pressure30.11" Hg
Rising
Feels LikeMild

It doesn’t feel either hot or moist tonight.
I can see stars.

TransparencyExcellent
SeeingII
Instruments SAR: Coulter CT-100 Newtonian reflector - Charlie
  • Celestron Omni 20mm (21x)
  • Celestron Omni 2x Barlow
Observing PartyCharlie Ridgway

TargetJupiter
ConstellationSgr
CategoryPlanet
Time
yyyymmdd.hhmm
20080716.2115 EDT
CommentsIo is hard to see in the scope’s coma – the planet mushes out at least that far.

There is no hint of banding but lots of chromatic aberration.

Object
Class
Classical Planet
Elongation171.6° E
Distance
Light Time
(from Earth)
4.17 AU
34m 40s
Distance
(from Sun)
5.18 AU
Angular Size47.2" x 44.2"
Magnitude-2.7
Central Meridian
I/II
75°/10°
Altitude13.1°
Moons

Starry Night Starter graphic

TargetMoon
ConstellationSgr
CategoryLunar
Time
yyyymmdd.hhmm
20080716.2130 EDT
CommentsNaked eye the western limb is only slightly flattened.

My observations were interrupted as soon as I got started by a couple of passers by so we looked at the Moon and Jupiter then I got back to my own program.

HIP 92635 (Mag 6.28) is visible in the eyepiece (low poser) with the Moon and Nunki (Mag 2.05) to the right and φ Sgr (Mag 3.17) to the left. Nothing dimmer is visible.

Lunation1058
PhaseWaxing Gibbous
Age13d 13h 10m
Distance
Light Time
(from earth)
400,852 km
1.34s
Elongation165.4° E
% Illuminated98.5%
Morning Terminator Colongitude (λ E)78.0°
Evening Terminator Colongitude (λ W)258.0°
Libration in Latitude5° 00'
Libration in Longitude-1° 04'
Magnitude-12.2
Angular Size29.81'
Altitude14° 04'

Virtual Moon Atlas graphic

Terminator
In ShadowFeature
Diameter/Length; Class
In Sunlight
<<< Repsold
109; Old;
 
<<< Cleostratus
62; Old
 
  Harding
22
>>>
  Van Braun
60
>>>
  Lavosier A >>>
  Ulugh Beigh
54; Old
>>>
  Struve
164; Very Old
>>>
  Russell
103; Very Old
>>>
  Eddington
118; Old
>>>
<<< Balboa
69
 
<<< Dalton
60
 
<<< Vasco de Gama
83; Old
 
  Krafft
51; Old
>>>
  Cardanus
49; 2
>>>
  Olbers
74; 1
>>>
  Hedin
150; Very Old
>>>
  Hevelius
115; 5
>>>
  Riccioli
139; 3
>>>

Also seen

  • Mare Frigoris
    • Bianchini (38; 1)
    • Foucault (23; Young)
    • Harpalus (39; 1)
    • Markov (40; Old)
    • J Herschel (165; Extremely Old)
    • Pythagoras (142; 1)
    • Anaxamenes (80; 5)
    • Babbage (143; Extremely Old)
    • Anaxamander (67; Extremely Old)
    • South (104; Extremely Old)
  • Oceanus Procelarum
    • Reiner Gamma
    • Damoiseau (36; Very Old)

Rays are evident around Copernicus, Kepler and Tycho.

There is light boiling on the Moon’s limb.

TargetJupiter
ConstellationSgr
CategoryPlanet
Time
yyyymmdd.hhmm
20080716.2340 EDT
CommentsThe moons are more evenly distributed now.

The coma in SAR is not as bad right now. I must have adjusted the cans.

Light from the concentration camp lighting is coming into the scope from the bottom of the tube where the shroud doesn’t touch the truss bar by about an inch on each side of the bar.

Object
Class
Classical Planet
Elongation171.5° E
Distance
Light Time
(from Earth)
4.17 AU
34m 40s
Distance
(from Sun)
5.18 AU
Angular Size47.2" x 44.2"
Magnitude-2.7
Central Meridian
I/II
161°/94°
Altitude26.6°
Moons

Starry Night Starter graphic

15 July 2008

Observing LocationMO
Observational Period2130-2315 EDT
Atmospheric Conditions
Cloud CoverIsoloated Clouds
to
Scattered Clouds
Temperature76° F
WindGentle Breeze
HumidityModerate
Barometric Pressure30.12" Hg
Rising
Feels LikeMile

It doesn’t feel as moist as the barometer says it is.
By the time I got set up and found the Moon it was behind a light strato-cumulus cloud. I had to wait out clouds several times, saw no stars, and only saw three moons of Jupiter.
I had to keep adjusting focus.

TransparencyGood
SeeingII
Instruments SAR: Coulter CT-100 Newtonian reflector - Charlie
  • Celestron Omni 20mm (21x)
  • Celestron Omni 2x Barlow
Observing PartyCharlie Ridgway

TargetJupiter
ConstellationSgr
CategoryPlanet
Time
yyyymmdd.hhmm
20080715.2145 EDT
CommentsI had checked Starry Night this afternoon and thought it showed four moons but Planetarium says Io was transiting. Ganymede was about three planet diameters away to the west and calisto about five planet diameters away to the east. Europa was above the line from Ganymede through the planet to Calisto and less than a diameter away to the west.

Object
Class
Classical Planet
Elongation172.7° E
Distance
Light Time
(from Earth)
4.17 AU
34m 39s
Distance
(from Sun)
5.18 AU
Angular Size47.3" x 44.2"
Magnitude-2.7
Central Meridian
I/II
293°/235°
Altitude16.4°
Moons

Starry Night Starter graphic

TargetMoon
ConstellationSgr
CategoryLunar
Time
yyyymmdd.hhmm
20080715.2150 EDT
CommentsThe Moon was just above the spout of the teapot but I could only find one star and think it was probably 3 Sgr (Mag 9.87).

Virtual Moon Atlas graphic

To the naked eye the western limb of the Moon looked flattened but the Moon appears close to being full.

Lunation1058
PhaseWaxing Gibbous
Age
Distance
Light Time
(from earth)
,000 km
s
Elongation°
% Illuminated95.3%
Morning Terminator Colongitude (λ E)65.9°
Evening Terminator Colongitude (λ W)245.9°
Libration in Latitude6° 01'
Libration in Longitude-0° 50'
Magnitude-12.55
Angular Size29.70'
Altitude19° 02'

Virtual Moon Atlas graphic

Terminator
In ShadowFeature
Diameter/Length; Class
In Sunlight
  Philolaus
70; 1
>>>
  Babbage
143,; Extremely Old
>>>
  J. Herschel
165; Extremely Old
>>>
  Mons Rumker
70
>>>
<<< Lichtenberg
20; Young
>>>
  Briggs
37; Young
>>>
<<< Solevcus
43; 1
>>>
  Hermann
15
>>>
  Damoiseau
36; Very Old
>>>
<<< Grimaldi
172, 5
>>>
  Sirsalis
42; 1
>>>
  Byrgies
87; 3
>>>
  Schicard
206; 5
>>>
  Wargentin
84; 5
>>>
  Nasmyth
76; Very Old
>>>
  Phocylides
121; 3
>>>
  Senger
67; 3
>>>
  Bettinius
71; 1
>>>

Also identified:

  • Oceanus Procelarum
    • Harpalus (39; 1)
    • Bianchini (38; 1)
    • Sharp (39; 1)
    • Mairan (40; 1)
    • Mons Gruithuisen Delta (20)
    • Gruithuisen (15; Young)
    • Marius A
    • Marius (58; 5)
    • Reiner (29; 1)
  • Mare Humorum
    • Gassendi (101; 5)
    • Mersenius (84; 3)
    • Cavendish (56; 3)
    • Liebig (37; 1)
  • Palus Epidemiarum
    • Campanus (48; 5)

I think I was seeing a lot more small (probably 5-10 km), young craters that are not on the Field Atlas of the Moon.

Monday, July 14, 2008

13 July 2008

Observing LocationBronx Library Center, East Kingsbridge Rd off East Fordham Road, Bronx, NY
Lat.: 40° 51' 47.61"
Long.: -73° 53' 39.79"
Observational Period0800-0815 EDT
Atmospheric Conditions
Cloud CoverScattered Clouds
Temperature74° F
WindGentle Breeze
HumidityHigh
Barometric Pressure29.85" Hg
Falling
Feels LikeWarm

There are lots of fair weather cumulus clouds around.

TransparencyGood
SeeingI
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationGem
CategorySolar
Time
yyyymmdd.hhmm
20080713.084 EDT
Comments
Distance
Light Time
1.02 AU
8m 27s
Angular Size31' 31.2"
Altitude33.2°
Heliographic Latitude
(B0)
4.21°
Heliographic Longitude
(L0)
273.34°
Parallactic Angle
(P)
3.12°
Carrington rotation number
(CR)
2072

Nothing Seen

 Groups SpotsR
North0 0 0
South0 0 0
Total0 0 0
R = (Groups * 10) + Spots)



Observing LocationBronx Library Center, East Kingsbridge Rd off East Fordham Road, Bronx, NY
Lat.: 40° 51' 47.61"
Long.: -73° 53' 39.79"
Observational Period1955-2000 EDT
Atmospheric Conditions
Cloud CoverClear
Temperature76° F
WindModerate Breeze
HumidityHigh
Barometric Pressure29.77" Hg
Steady
Feels LikeWarm

The stiff breeze is the only thing that is keeping the heat and humidity from feeling oppressive. It would be a good night to go out to observe the Moon if it weren’t for the wind buffeting the telescope.

TransparencyGood
SeeingI
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

TargetMoon
ConstellationSco
CategoryLunar
Time
yyyymmdd.hhmm
20080713.1955 EDT
Comments
Lunation1058
PhaseWaxing Gibbous
Age10.9d
Distance
Light Time
(from earth)
403,902 km
s
Elongation°
% Illuminated83.6%
Morning Terminator Colongitude (λ E)40.6°
Evening Terminator Colongitude (λ W)220.6°
Libration in Latitude7° 15'
Libration in Longitude1° 57'
Magnitude-
Angular Size29.58'
Altitude19° 38'

Virtual Moon Atlas graphic

When I got out of the library I could see the Moon hanging above the buildings down the hill on Fordham Rd so took a qhick look with the compact binocular. The wind was pushing me around but it looked like the terminator was outside of Mare Imbrium.


Virtual Moon Atlas graphic

12 July 2008

Observing LocationVP
Observational Period0800-0815 EDT
Atmospheric Conditions
Cloud CoverClear
Hazy
Temperature75° F
WindCalm
HumidityHigh
Barometric Pressure30.11" Hg
Steady
Feels LikeHot

The humidity is making it feel warmer than it is. There are no clouds visible but there is a lot of haze lit up near the sun.

TransparencyGood
SeeingI
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationGem
CategorySolar
Time
yyyymmdd.hhmm
20080712.0800 EDT
Comments
Distance
Light Time
1.02 AU
8m 27s
Angular Size31' 31.1"
Altitude24.7°
Heliographic Latitude
(B0)
4.11°
Heliographic Longitude
(L0)
286.99°
Parallactic Angle
(P)
2.66°
Carrington rotation number
(CR)
2072

Nothing Seen

 Groups SpotsR
North0 0 0
South0 0 0
Total0 0 0
R = (Groups * 10) + Spots)

Friday, July 11, 2008

11 July 2008

Observing LocationCT
Observational Period1000-1015 EDT
Atmospheric Conditions
Cloud CoverScattered Clouds
Temperature76° F
WindCalm
HumidityModerate
Barometric Pressure30.09" Hg
Steady
Feels LikeHot

The air feels a little humid.

TransparencyGood
SeeingI
Instruments Brunton 8x21 compact binocular w/Welco gold shade 14 welder's filter - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationGem
CategorySolar
Time
yyyymmdd.hhmm
20080711.1000 EDT
Comments
Distance
Light Time
1.02 AU
8m 27s
Angular Size31' 31.0"
Altitude47.7°
Heliographic Latitude
(B0)
4.02°
Heliographic Longitude
(L0)
299.12°
Parallactic Angle
(P)
2.25°
Carrington rotation number
(CR)
2072

Nothing Seen
There is nothing indicated on the SOHO images and Active Region Explorer is indicating that there is an area(s) of plage that is just about to rotate onto the Earth-facing side of the Sun but which does not contain any spots.

 Groups SpotsR
North0 0 0
South0 0 0
Total0 0 0
R = (Groups * 10) + Spots)



I was asked about scientists having found water on the Moon last night and said that it was Mars where they found some kind of ice that sublimated. Today I opened an old email from BBC News and found a 9Jul08 story saying that some scientists are hypothesizing that glass beads returned from the Moon on Apollo missions resulted from volcanic explosions that included a water component.



Observing LocationPSC
Observational Period2100-2215 EDT
Atmospheric Conditions
Cloud CoverScattered Clouds
Haze
Temperature76° F
WindGentle Breeze
HumidityModerate
Barometric Pressure30.08" Hg
Falling
Feels LikeMild

It is on the verge of feeling cool. There is a ring around the moon.

TransparencyGood - Fair
SeeingII
Instruments SAR: Coulter CT-100 Newtonian reflector - Charlie
  • Celestron Omni 20mm (21x)
  • Celestron Omni 2x Barlow
Observing PartyCharlie Ridgway

1959 EDTMoon transits
2007 EDTJupiter rises
2015 EDTSunset
Civil Twilight begins
2057 EDTCivil Twilight ends
Nautical Twilight begins

TargetMoon
ConstellationVir
CategoryLunar
Time
yyyymmdd.hhmm
20080711.2100 EDT
Comments
Lunation1058
PhaseWaxing Gibbous
Age8d 22h 40m
Distance
Light Time
(from earth)
400,707 km
1.33s
Elongation110.5° E
% Illuminated67.9%
Morning Terminator Colongitude (λ E)17.0°
Evening Terminator Colongitude (λ W)187.0°
Libration in Latitude7° 29'
Libration in Longitude4° 02'
Magnitude-10.7
Angular Size29.82'
Altitude27° 45'

Virtual Moon Atlas graphic

Terminator
In ShadowFeature
Diameter/Length; Class
In Sunlight
  Bliss (Plato A)
20
>>>
  Plato
109; 5
>>>
  Mons Teneriffe
182
>>>
<<< Montes Recti
90
>>>
  Mons Pico
25
>>>
<<< le Verrier
20; 1
 
  Mons Piton
25
>>>
  Aristarchus
40; 1
>>>
<<< Carlini D 
  Timocharis
33; 1
>>>
<<< Lambert
30; 1
 
<<< Heinrich
6
>>>
  Eratosthenes
58; 1
>>>
  Stadius
69; 5
>>>
<<< Copernicus
93; 1
 
<<< Reinhold
42; 1
 
  Apollo 14 >>>
<<< Apollo 12 
  Lalande
24
>>>
  Fra Mauro
101; Extremely Old
>>>
  Guericke
63
>>>
<<< Nicollet
15; 1
>>>
<<< Wolff
25
 
  Birt
16; 1
>>>
<<< Hesiedus
42; Very Old
 
  Pitatus
106; Very Old
>>>
<<< Werzelbauer
88; 5
 
  Gauricos
79, Very Old
>>>
  Tycho
102; 1
>>>
  Maginus
194, 3
>>>

Also Indetified:

  • Mare Imbrium
    • Vallis Alpes (166)
      The Alps on the eastern side are not visible, just those forming the rim of Mare Imbrium – not the foothills.
    • Mons Blanc (25)
    • Promontorium Deville (20
    • Promontorium Agassiz (20)
    • Theateus (24; 1)
    • Promontorium Fresnel (20)
    • Mons Hadley (25)
    • Apollo 15

There appears to be a dark halo, carker on the outer border, around Burt like it is in a drowned crater.

I can’t find Rupes Recta.

2138 EDTNautical Twilight ends
Astronomical Twilight begins
2214 EDTAstronomical Twight ends

TargetJupiter
ConstellationSgr
CategoryPlanet
Time
yyyymmdd.hhmm
20080711.2215 EDT
CommentsOn the way home I walked out to McGraw Ave and Unionport Rd to see if I could see Jupiter but didn’t like the idea of setting up the telescope there with a bunch of loud guys on the street outside of the bar nearby so headed down McGraw toward home. Along McGraw between Pugsley Ave and Metropolitan Ave there was a place where I could set up the telescope without obstructing the sidewald so I observed there. The clouds/haze were getting thick and Jupiter’s moons disappeared as I was watching. I wasn’t able to see any stars nearby.

Starry Night Starter graphic
Object
Class
Classical Planet
Elongation177° E
Distance
Light Time
(from Earth)
4.16 AU
34m 37s
Distance
(from Sun)
5.18 AU
Angular Size47.3" x 44.2"
Magnitude-2.7
Central Meridian
I/II
39°/11°
Altitude17.9°
Moons

Starry Night Starter graphic

0048 EDTJupiter transits
0057 EDTMoon sets