Saturday, October 31, 2009

31 October 2009

Sunspots Observed

I was not able to do any solar observing this month. There has been a pretty spectacular sunspot that just rotated off the Earth-facing hemisphere of the Sun so I guess it is time to start getting ready for some more observing.

Observing Hours for the Year 2009

 DayNightTotal
HoursDaysAvgHoursDaysAvgHoursDaysAvg
Jan0.5020.250.2510.250.7520.38
Feb2.75110.252.5090.282.25140.38
Mar0.0000.04.0070.574.0070.57
Apr0.2510.250.7520.381.0020.50
May1.2520.630.2510.251.5030.50
Jun0.0000.000.5010.500.5010.50
Jul0.5010.500.5010.501.0020.50
Aug0.5020.2515.5053.1016.0062.67
Sep1.0011.0027.0073.8628.0083.50
Oct0.0000.0011.0061.8311.0061.83
TOTAL6.75200.3462.25401.5667.75501.36

Friday, October 30, 2009

30 October 2009

Before The Rain

We knew it would rain, for all the morn
   A spirit on slender ropes of mist
Was lowering its golden buckets down
   Into the vapory amethyst.

Of marshes and swamps and dismal fens --
   Scooping the dew that lay in the flowers,
Dipping the jewels out of the sea,
   To sprinkle them over the land in showers.

We kneew it would rain, for the poplars showed
   The white of their leaves, the amber grain
Shrunk in the wind -- and the lightning now
   Is tangled in tremulous skeins of rain!

Thomas Bailey Aldrich

Thursday, October 29, 2009

29 October 2009

I just checked on my Birthday Star and it has changed, again. It is in the right hemisphere and high enough in the sky in the evening and it is just bright enough to be seen without optics. It is δ Equulei, the mouth of the pony and shines at Mag 4.47. The light from this star takes 6.28 ly to reach earth so it is actually a little farther away from earth than my age right now, or will be for a while, but it the closest match the database has. And at least it is something I can see this time.

Stellarium graphic

Monday, October 26, 2009

25 October 2009

Observing LocationTotL
Resources:
  • The bathrooms were still open when I arrived but were closed when I left.
  • The water fountains are still turned on.
Observational Period1845-1945 EDT
Atmospheric Conditions
Cloud Cover Broken
becoming
Scattered
becoming
Broken
Temperature 58° F
Wind Light Breeze
HumidityModerate
Barometric Pressure30.11" Hg
Rising
Feels LikeCool
I checked the Weather Underground history for the Central Park NOAA weather station and it reported clear skies all day yesterday

TransparencyPoor
Seeing 
InstrumentsNaked-eye – Charlie
Naked Eye - Tom
Observing PartyCharlie Ridgway
Tom Claybough
1559 EDT
Moonrise
1802 EDT
Sunset
Civil Twilight begins
1830 EDT
Civil Twiligt ends
Nautical Twilight begins
1845 EDT
  • The First Quarter Moon and Jupiter were shining through the clouds. The Moon is about 15° to the West of Jupiter and will be near Jupiter tomorrow night when the clouds should be even worse.
  • Polaris, Arcturus, Altair, Vega, the top of the Northern Cross and Cassiopeia were seen through gaps in the clouds.
1902 EDT
Nautical Twilight ends
Astronomical Twilight begins

TargetIridium 72 Flare
ConstellationCas, Cam
CategorySatellite
Time
yyyymmdd.hhmm
20091025.1923 EDT
Comments
 Heavens
Above
CalSky
Time1923:08 EDT1923:09 EDT
Alt.46°46.3°
Az.21°
NNE;
20.8°
NNE
Mag.-7-6.0
Surface&nsp;MMA2
I had an alarm set on my watch for 1822 EDT but was already watching for the satellite when it went off. Shortly after the alarm I picked it up descending through upper Cassiopeia. As it got down near the altitude of Polaris it flared a very bright, big and gold. I think it appeared so large because the light was being refracted by the clouds.

Finally a flare where I was expecting it to be. I had estimated the location by looking a hand span east of Polaris then fudged back west to compensate for compass deviation. I was looking for anything moving anywhere near Cassiopeia.

1934 EDT
Astronomical Twilight ends
1943 EDT
First Quarter Moon

Thursday, October 22, 2009

22 October 2009

Tonight through Saturday are the Galilean Nights sponsored by International Astronomy Year 2009 to encourage people to observe what Galileo observed 400 years ago. It looks like we will be having rain through the period.

400 Years of the Telescope

Wednesday, October 21, 2009

21 October 2009

NASA appears to be sacrificing completion of the ISS in favor of the next generation space vehicle, the ARES 1 rocket and Crew Expedition Vehicle.

They have determined that the Shuttle replacement is the agency's number one priority right now and have moved its first test flight up even though that will push the first available launch date for STS-129 back to a date when it can not be launched unless another launch is postponed.

It takes two days to reconfigure all of the tracking hardware the Air Force uses to support launches and right now there is a military launch scheduled for 14 or 15Nov09, which means that STS-129 couldn't be launched before 17Nov09. The launch window for STS-129 is 16-19Nov09. After 19Nov09 NASA will have to stand down until 6-11Dec09 because of thermal concerns at ISS and a subsequent Russian satellite docking at ISS.

Tuesday, October 20, 2009

20 October 2009

It wasn't infinity in fact. Infinity itself looks flat and uninteresting. Looking up into the night sky is looking into infinity. Distance is incomprehensible and therefore meaningless. The chamber into which the aircar emerged was anything but infinite, it was just very very very big, so big that it gave the impression of infinity far better than infinity itself.

The Hitchhiker's Guide to the Galaxy
Douglas Adams

Monday, October 19, 2009

19 October 2009

If you make a measurement and get what you expect, you have made a measurement. If you don't get wat you expect, you've made a discovery.

attrib.: Enrico Fermi



Observing LocationVarious southern Manhattan Locations
Observational Period1902030 EDT
Atmospheric Conditions
Cloud CoverClear
Temperature50° F
WindCalm
HumidityModerate
Barometric Pressure" Hg
Feels LikeMild

TransparencyGood
Seeing 
InstrumentsNaked-eye - Charlie
Observing PartyCharlie Ridgway

Great World Wide Star Count
1810 EST
Sunset
Civil Twilight Begins
1837 EDT
Moonset
1838 EST
Civil Twilight Ends
Nautical Twilight Begins
1910 EST
Nautical Twilight Ends
Astronomical Twilight Begins

20091019
1910 EST
Observation701
Date
Time
LocationHerald Square
Lat.: 40.750542°
Long: -73.987645°
ConditionsIt was clear but I was looking up through floodlights illuminating the park from on top of Macy’s.
Limiting MagnitudeMag. 1.25
CommentsI could see Vega and Deneb.

Observation704
Date
Time
20091019
1920 EST
Location7 Abe @ 29 St
Lat.: 40.747722°
Long: -73.992845°
ConditionsThe corner is darker than most.
Limiting MagnitudeMag. 3.89
CommentsI could see all of the Northern Cross stars but none of the stars in the V behind Deneb.

Observation705
Date
Time
20091019
1940 EST
Location Madison Square Park
Lat.: 40.742512°
Long: -73.987849°
ConditionsIt is dark inside the park if you are not neat a street light.
Limiting MagnitudeMag. 3.89
Comments I saw all of the Northern Cross stars but none of the stars in the V behind Deneb.
1942 EST
Astronomical Twilight Ends

Observation706
Date
Time
20091019
1950 EST
LocationUnion Square Park
Lat.: 40.742512°
Long: -73.987849°
ConditionsThe areas without trees obstructing the view of the sky are the most light-polluted.
Limiting MagnitudeMag. 3.89
Comments I could see all of the Northern Cross stars but none of the stars in the V behind Deneb.

Observation707
Date
Time
20091019
2000 EST
LocationWashington Square Park
Lat.: 40.730798°
Long: -73.997282°
ConditionsThe park is well lit where it is open to the sky and there are floodlights shining upward onto Washington Arch.
Limiting MagnitudeMag. 4.55
CommentsI could see all of the stars of the Northern Cross and the two farthest stars of the V behind Deneb.

Observation708
Date
Time
20091019
2020 EST
LocationTompkins Square Park
Lat.: 40.725195°
Long: -73.981269°
ConditionsTo e 1 km from the other locations I am surveying I have to stand on the SE corner of the park under a street light so there is more light-pollution than if I were observing from inside the park.
Limiting MagnitudeMag. 4.55
CommentsI saw all of the stars of the Northern Cross and found the two farthest stars of the V, the fainter one with difficulty. This observation was made 10 minutes after the close of the official observation window but was reported anyway.

Of the last 100 reports submitted all but 9 have been from the USA and most of those from east of the Mississippi.

Saturday, October 17, 2009

17 October 2009

Lunar Terminology

FeaturePluralMeaning from LatinContemporary MeaningExample
Best Seen
Basin  bery large impact features which have been filled with lavaMare Imbrium
Day 10
Caldera  the collapsed top of a volcano which forms a crater 
Catena Chainchain of cratersCatena Davy
Day 8
Cleft  a cliff often found in the inside of crater walls as the result of slumpingLangrenous
Day 2
CraterCraters a circular or nearly circular feature on the MoonCopernicus
Day 9
Craterlet  a crater that is just at the lower limits of observability with the optics being used 
Dome  lowrounded hillsMons Rumker
Day 12
DorsumDorsaBackwrinkle ridge tens of meters highDorsa Smirnov
Day 5
Fault  cracks in the lunar surface caused by compression and spreadingRupes Recta
Day 8
Graben  te process by which a valley forms when the material between two parallel faults sinks below the surrounding area due to spreading Vallis Alpes
Day 7
Highlands  the portion of the Moon not occupied by craters, walled plains, palus, and basins; also called the uplandssouth polar region
Impact Basin  huge impact features that have been modified by volcanism, lava flows and subsequent impactsMare Imbrium
Day 10
Lacus Lakesmall plainLacus Somniorum
Day 5
MareMariaSealarge plainMare Crisium
Day 3
Massif  a large solitary mountainPicolomini
Day 5
MonsMontesMountmountainMontes Teneriffe
Day 8
Oceanus Oceanvery large plainOceanus Procelarum
Day 10
Palus Swampsmall plainPalus Somni
Day 5
Planitia Plainlow plain 
Promontorium Promontoryheadland jutting into a marePromontorium Laplace
Day 10
Ray  a stripe on the lunar surface where ejects has landed from the formation of a crater; most prominent at the time of full MoonTycho
Day 14
Rift Valley  a graben valley Vallis Alpes
Day 7
Rille  narrow valleys formed between parallel faultsHyginus Rille
Day 6
RimaRimaeCrackrille (narrow valley)Rima Huyginus
Day 6
Rupes CliffscarpRupes Recta
Day 8
Scarp  a cliff formed by faultingRupes Altai (Altai Scarp)
Day 5
Sinus Bayindentation at the edge of a mareSinus Iridum
Day 10
Upland  the portion of the Moon not occupied by craters, walled plains, palus, and basins; also called the highlandssouth polar region
VallisVallesValleylarge valleyVallis Alpes
Day 7
Walled Plain  features over 70 km across; low walls; moderately sunkrn floor; (no central peak)Prolemaeus
Day 7
Wrinkle Ridge  see DorsumDorsa Smirnov
Day 5
Terms in Italics are English terms
Based on and expanded from Moon Observer's Guide


Crater-
let
<- 12 km
Crater
12 km ->
Walled Plain
70 km ->
Impact Basin
300 km ->


Mountains, mountain ranges and valleys on the Moon were given Latinized names after similar features on earth. Craters have been named after people, primarily dead people or people who only lived in mythology (the exception being the craters named after the Apollo 11 astronauts who were all living at the time the craters were named). But the largest craters have been given Latin names. This is a list of those Latin names and their meanings.

FeatureMeaningVisible
Lacus AestatisLake of SummerDay 13
Lacus AutumniLake of AutumnDay 13
Lacus DolorisLake of SorrowDay 6
Lacus ExcellentiaeLake of ExcellenceDay 10
Lacus GaudiiLake of JoyDay 6
Lacus LenatitisLake of TendernessDay 6
Lacus MortisLake of DeathDay 5
Lacus OdiiLake of HatredDay 6
Lacus SomniorumLake of DreamsDay 5
Lacus TimorisLake of FearDay 10
Lacus VerisLake of SpringDay 13
Mare AnguisSea of SerpentsDay 2
Mare AustraleSouthern SeaDay 3
Mare CognitumKnown SeaDay 9
Mare CrisiumSea of CrisesDay 2
Mare FecunditatisSea of FertilityDay 2
Mare FrigorisSea of ColdDay 5
Mare HumboldtianumSea of Alexander von HumboldtDay 2
Mare HumorumSea of MoistureDay 10
Mare ImbriumSea of RainsDay 7
Mare InsularumSea of IslandsDay 8
Mare MarginisBorder SeaDay 3
Mare NectarisSea of NectarDay 5
Mare NubiumSea of CloudsDay 8
Mare OrientaleEastern SeaDay 14
Mare SerenitatisSea of SerenityDay 5
Mare SmythiiSmyth's SeaDay 3
Mare SpumansFoaming SeaDay 2
Mare TranquilitatisSea of TranquilityDay 4
Mare UndularumSea of WavesDay 2
Mare VaporumSea of VaporsDay 6
Oceanus ProcellarumOcean of StormsDay 10
Palus EpidemiarumMarsh of EpidemicsDay 9
Palus PutredensisMarsh of DecayDay 8
Palus SomniMarsh of SleepDay 4
Sinus AestuumBat of BillowsDay 8
Sinus AmorisBay of LoveDay 4
Sinus AsperitatisBay of AsperityDay 5
Sinus FideiSea of FaithDay 8
Sinus HonorisBay of HonorDay 6
Sinus IridumBay of RainbowsDay 9
Sinus MediiCentral BayDay 6
Sinus RorisBay of DewDay 9
Sinus SuccessusBay of SuccessDay 2
Statio TranquilitatisTranquility BaseDay 5

Wednesday, October 14, 2009

14 October 2009

Observing LocationBryant Park
Observational Period0530-0550 EDT
Atmospheric Conditions
Cloud CoverClear
Temperature41° F
WindCalm
Gusting to
Light Breeze
HumidityHigh
Barometric Pressure30.24" Hg
Falling
Feels Like Very Cool

TransparencyGood
Seeing 
InstrumentsNaked-eye - Charlie
Observing PartyCharlie Ridgway

Looking Manhattan S Orion was standing over the dirigible mast and antennas of the Empire State building; Antares is just visible nest to the buildings on the W side of 6 Ave; Sirius is behind a tree and Procyon and Gomeisa are above the tree. Auriga is high over my right shoulder in 6 Ave. Orion’s Belt is washed out in the lights shining down into Bryant Park from the MetLife Building. I might have been able to have seen Mars but I didn’t think about planets and didn’t know where it was anyway.

0534 EDT
Astrological Twilight begins

TargetISS Visible Pass
ConstellationOri - Gem – Lyn – UMa - CVn
CategorySatellite
Time
yyyymmdd.hhmm
20090914.0546 EDT
Comments
  StartsMax. Alt.Ends
H A
e b
a o
v v
e e
n  
s  
Time0547 EDT0547 EDT0550 EDT
Alt.38°79°10°
Az.SWSENE
Mag-3.3
C
a
l
S
k
y
Time0546 EDT0547 EDT0552 EDT
Alt.33.6°79.4°orizon
Az.224.6°
SW
142.3°
SE
54.8°
NE
Mag-3.7-4.4-1.4
The Shuttle rose from behind the buildings on the W side of 6 Ave already illuminated and continued climbing past Orion’s outstretched arm and head (which I couldn’t see) then out over 42 Street high overhead before setting into the buildings on the N side of 43 Street. It was much brighter than Sirius and had a slight yellow tinge. It gave the impression of being closer than the stars it was passing, which it is, and larger, which it is not except in the arc it subtends.

0606 EDT
Astrological Twilight ends
Nautical Twilight begins
0637 EDT
Nautical Twilight ends
Civil Twilight begins
0705 EDT
Civil Twilight ends
Sunrise



One of my friends who knows of my interest in space and astronomy sent me a link to a N0VA movie that was made on the HST Servicing Mission.

NOVA



Observing LocationBattery Park
Observational Period2030-2230 EDT
Atmospheric Conditions
Overcast
Cloud Cover
Temperature
WindLight Breeze
HumidityHigh
Barometric Pressure" Hg
Feels Like Very Cool

TransparencyNone
SeeingII
InstrumentsHarry - Charlie
Peter’s DIY 6” Newtonian Telescope

Takahashi 102mm F/8.2 refractor - Peter
Observing PartyCharlie Ridgway
Peter Tagatac
Tom Clabough
Jon Pazmino
Tonight was a special observing Peter had set of for the Claremont School down in the Financial District as a result of meeting one of their teachers at TotL.

Peter and I traveled together and assessed the sky conditions when we got to the Staten Island Ferry and knew we were up against the wall. There was A star visible, Vega. Before we had gone down we knew it was going to be doubtful since the sky had been white most of the afternoon.

On getting to the school we were taken to the roof were they thought we might observe and we did see a few more stars from there but the roof is a play area for the younger kids so is completely enclosed in netting which would make telescopic netting very difficult.

John Pazmino gave a talk on the LCROSS mission and Peter and I left shortly after he got started to go down to Battery Park to assess the conditions there. It was looking bleak and when we arrived The Star had disappeared behind the clouds. There were a few gaps and I was able to get in a quick Great World Wide Star Count count but conditions were going south fast.

While we were setting up Peter found that his eyepieces for the Takahashi were not in his backpack as he believed so we were going to be forced to share the two eyepieces he did have for Harry.

The teacher in charge of the event did not understand the same location that Peter was describing and ended up getting to Wagner Park instead of Battery Park but persevered and eventually got down to us with about a dozen students and parents. By that time there wasn’t any clear sky left to observe in.

We trained the scopes on the Statue of Liberty and the Colgate clock so the kids could have the experience of looking through them at something. There were several of them who were really into it and one had brought his telescope and another a pair of binoculars. The kids would have lasted longer than their parents who siphoned them off at various times until it was only the teacher and one older student left and they left as well.

The teacher is interested in trying to reschedule the observing part of the event in a month. We will not have the lecture and it will be getting darker earlier so we will be able to start observing earlier and maybe have more students participate.


Great World Wide Star Count
1818 EDT
Sunset
Civil Twilight Begins
1845 EDT
Civil Twilight Ends
Nautical Twilight Begins
1917 EDT
Nautical Twilight Ends
Astronomical Twilight Begins
1949 EDT
Astronomical Twilight Ends
Observation339
Date
Time
20091014
2038 EDT
Location
Lat.: 40.701040°
Long: -74.015266°
ConditionsBroken Clouds becoming Overcast
Limiting Magnitude4
CommentsThrough a gap in the clouds I was able to see all five of the Northern Cross stars. This observation was made 20 minutes after the close of the official observation window but was submitted anyway.

There was a double flare from Iridium 21 that I had hoped to have seen but I think it would have been blocked by buildings even if the sky had been clear. This was another case where a bright flare was listed in CalSky but not in Heavens-Above. This pair of flares iwas unusual in that they eccurred several minutes apart so should have been two distinct events rather than the prolonged flares I have seen before when observing double flares.

 Flare 1Flare 2
Time2018:46 EST2022:26
Alt.61.3°23.8°
Az.21.6°
ESE
13.8°
NNE
Mag.0-2.8
SurfaceSolar PanelsMMA2

Tuesday, October 13, 2009

13 October 2009

By the year 2000 we will undoubtedly have a sizeable operation on the moon, we will have achieved a manned Mars landing and it's entirely possible we will have flown men to the other planets.

Wernher von Braun

Sunday, October 11, 2009

11 October 2009

Observing LocationTotL
I stopped six times on my way uo to TotL to make Great World Wide Star Count observations.
Observational Period1900-2100 EDT
Atmospheric Conditions
Cloud CoverClear
becoming
Broken Clouds
Temperature57° F
WindLight Breeze
HumidityModerate
Barometric Pressure30.21" Hg
Rising
Feels LikeCool autumn evening

TransparencyGood
Seeing 
Instruments
Observing PartyCharlie Ridgway

Great World Wide Star Count
1823 EDT
Sunset
Civil Twilight Begins
1850 EDT
Civil Twilight Ends
Nautical Twilight Begins
1922 EDT
Nautical Twilight Ends
Astronomical Twilight Begins

Observation111
Date
Time
20091011
1923 EDT
LocationBryant ParkK
Lat.: 40.753807°
Long: -73.983644°
ConditionsI was looking up into the floodlights shining down on Bryant Park from the MetLife building across the street.
Limiting MagnitudeMag. 0.77
Comments

Observation112
Date
Time
20091011
1928 EDT
LocationTimes Square
Lat.: 40.758880°
Long: -73.983644°
ConditionsThe whole of the Times Square area is terribly light-polluted and even impacts on our observing up at TotL over 2 km away.
Limiting Magnitude
CommentsI couldn't see any stars at all due to all the advertisements on the surrounding buildings. I had to report this as cloudy since they don't have a category for tat much light pollution.

Observation114
Date
Time
20091011
1940 EDT
LocationColumbus Circle
Lat.: 40.768110°
Long: -73.981856°
ConditionsThis location isn't too badly light-polluted since the surrounding buildings don't have many decorative lights and you only have to contend with the cobra heads.
Limiting MagnitudeMag 2
Comments

Observation115
Date
Time
20091011
1951 EDT
LocationW 72 St just inside the park
Lat.: 40.776195°
Long: -73.975838°
ConditionsThere is a lot of ligt on 72 St at the intersection but it falls off quickly as you move into the park.
Limiting MagnitudeMag. 2.46
CommentsSaw three stars of the cross
1953 EDT
Astronomical Twilight Ends

Observation118
Date
Time
20091011
1958 EDT
LocationBathesda Fountain
Lat.: 40.776195°
Long: -73.972110°
ConditionsThis is a very dark area. There are no street lights around and except for being down in a hole with a limited horizon and no public interaction this might be a better observing location than TotL.
Limiting MagnitudeMag. 4.84
CommentsI saw 2 stars in the V behind Deneb

Observation119
Date
Time
20091011
2003 EDT
LocationE 72 St just inside the park
Lat.: 40.772635°
Long: -73.967532°
ConditionsConditions here are much the same as at W 72 St.
Limiting MagnitudeMag. 3.98
CommentsI saw all of the stars of the cross but none in the V behind Deneb.

Observation 
Date
Time
20091011
2017 EDT
LocationOutside the playground S of the Metropolitan Museum
Lat.: 40.777638°
Long: -73.964084°
ConditionsThis is a dark location nestled in trees with only one street light nearby although the side of the museum is lit up for security reasons
Limiting MagnitudeMag. 4.55
CommentsThis observation not reported as it is too close to both TotL and E 72 St.

Observation120
Date
Time
20091011
2019 EDT
LocationTotL
Lat.: 40.782462°
Long: -73.965591°
ConditionsLow street lights on either side of the observing location
Limiting Magnitude
Comments

TargetIridium 14 Flare
ConstellationCam
CategorySatellite
Time
yyyymmdd.hhmm
20091011.2040 EDT
Comments
 Heavens AboveCalSky
Time 2040:45 EDT
Alt. 18.3°
Az. 010.9°
N
Mag. -5.8
Surface MMA2
This flare does not appear in the Heavens Above listing. When I saw it I assumed I was seeing the Iridium 75 flare until the second satellite showed up, then I didn’t know what I was seeing. I had set my watch alarm for 2040 EDT and didn’t check it when either of the flares occurred.
The satellite appeared to be dropping vertically. It appeared brighter than the Iridium 75 flare and the decay did not appear to be uniform.

TargetIridium 75 Flare
ConstellationCam
CategorySatellite
Time
yyyymmdd.hhmm
20091011.2041 EDT
Comments
 Heavens AboveCalSky
Time2041:44 EDT2041:47 EDT
Alt.16°15.4°
Az.010°
N
009.6°
N
Mag.-5-4.5
Surface MMA2
This flare lasted longer than the flare of Iridium 14, had an extended but uniform decay and started a little above and to the right of Iridium 14.

Both of the above flares occurred closer to Polaris than either my compass or my estimate of the offset from Polaris indicated they should have been. My compass points ~20° W of Polaris from here. NOAA indicates that the declination at TotL is 16° 7' W. I know there are drain pipes running beneath the pavement in that area but if anything I would expect them to deflect the compass needle to the east where I was standing. And adding the declination to the listed azimuth for the flares would have had me looking even farther east.


Acorns are falling;
Squirrels are having a feast:
Winter approaches.

Charlie Ridgway



I have a add-on for Firefox that displays earthquakes by causing the browser to shake. The stronger the quake the longer the shaking continues. I have been noticing a lot of shaking going on lately. In Google Earth I have display of earthquakes turned on and this afternoon was looking at the earthquakes they are showing close to NYC. The only one that was there was off the NJ coast. When I got home tonight there was a quake displayed in upstate NY. I figured it was probably because I was zoomed to a different level where lesser quakes were being displayed but when I clicked on it the bubble said it was a quake that had just occurred yesterday and probably just got included on an update tonight. I checked the NJ quake which I had assumed was historic and found that it had just occurred on Friday.

20091009.1723Richter 2.1offshore NJ
20091010.2149Richter 2.4Lewis County, NY
SW of Harrisville
NW of Lewis


I got a bag of M&Ms on the way home tonight. I don’t particularly like chocolate, and my dentist hates it, but it is supposed to be a good antioxidant so I figure it is a neutral food. On opening the bag and pouring its contents into a bowl I was struck by how many more blue candies and fewer red and brown there seemed to be. So I had to count them and create a chart of the results. Since I don’t have another blog for scientific studies like this the data will have to live here.

I found that orange and brown candies seemed to melt more than others. Deformed candies seemed to be fairly evenly distributed among all of the colors although I didn’t perform an analysis of this.

Saturday, October 10, 2009

10 October 2009

Great World Wide Star Count
1824 EDT
Sunset
Civil Twilight Begins
1852 EDT
Civil Twilight Ends
Nautical Twilight Begins
1923 EDT
Nautical Twilight Ends
Astronomical Twilight Ends
Observation83
Date
Time
20091010
1924 EDT
LocationTompkins Square Park
Lat.: 40.725185°
Long: -73.981298°
ConditionsCloudy. It was supposed to clear off tonight but hasn't happened yet.
Limiting Magnitude
CommentsI could only see Jupiter as a fuzzy light behind the clouds.

Observation84
Date
Time
20091010
1942 EDT
LocationBroadway @ Broome St
Lat.: 40.721631°
Long: -73.999767°
ConditionsCloudy
Limiting Magnitude
CommentsIt has cleared a little as I can see Vega from here.

1955 EDT
Astronomical Twilight Ends
Observation85
Date
Time
20091010
1955 EDT
LocationCity Hall Park
Lat.: 40.792191°
Long: -74.007057°
ConditionsCloudy
Limiting Magnitude
CommentsI am under a thick patch of cloud now as Vega has disappeared.

Observation86
Date
Time
20091010
2007 EDT
LocationPier 16
Lat.: 40.704648°
Long: -74.002187°
ConditionsCloudy
Limiting Magnitude
CommentsI can see Jupiter and Vega behind the clouds.

Wednesday, October 7, 2009

7 October 2009

In the sciences the authority of thousands of opinions is not worth as much as one tiny spark of reason in an individual man.

Galileo Galilei

Monday, October 5, 2009

5 October 2009

I do not feel obliged to believe that the same God who has endowed us with senses, reason and intellect has intended to forgo their use . . . He would not require us to deny sense and reason in physical matters which are set before our eyes and minds by direct experience or necessary demonstrations.

Galileo Galilei



    This still afternoon
Is full of autumn sunlight
    and spring memories.

Richard Wright



Observing LocationTotL & TPO
I started out at TotL and moved to TPO at 2015 when some dog walkers we have been seeing regularly told me Peter was down there. Tonight was the 6th anniversary of our first joint observing session at TPO and I missed in his email that he intended celebrating it at that location rather than our usual TotL.
Observational Period1945-0100 EDT
Atmospheric Conditions
Cloud CoverScattered Clouds
decreasing to
Isolated Clouds
Initially there were passing patches of heavy cloud with other areas where stars could be seen but where the sly was a brighter gray than other areas, like the milky way ad been moved. The pillars of light rising from the GE building and Times Square were very much in evidence.
Temperature60° F
Windvarying between
Light Breeze
and
Gentle Breeze
HumidityModerate
Barometric Pressure29.94" Hg
Rising
Feels LikeVery Cool

TransparencyGood
SeeingI
InstrumentsNaked-eye – Charlie
Teleport 10" Donsonisn reflector – Peter
  • 2" Pentax 40mm, 70° FoV, 31.8x
  • 2" TeleVue Nagler 17mm, 82° FoV, 74.7x
  • 1.25" TeleVue Nagler 13mm, 82° FoV, 97.7x
  • 1.25" TeleVue Plossl 7mm, 82° FoV, 181.4x
Observing PartyCharlie Ridgway
Peter Tagatac
1832 EDT
Sun Sets
Civil Twilight Begins
1853 EDT
Moon Rises
1900 EDT
Civil Twilight Ends
Nautical Twilight Begins

TargetMoon
ConstellationAri
CategoryLunar
Time
yyyymmdd.hhmm
20091005.1930 – 20091006.0100 EDT
Comments
Lunation1073
PhaseWaning Gibous
Age17.24d
Distance
Light Time
(from earth)
380,776 km
s
Elongation°
% Illuminated96.5%
Morning Terminator Colongitude (λ E)116.1°
Evening Terminator Colongitude (λ W)296.1°
Libration in Latitude-5° 44'
Libration in Longitude-4° 7’
Magnitude-
Angular Size31.38'
Altitude17° 6’

Virtual Moon Atlas graphic

As I entered The Great Lawn by TPO I saw the not quite full Moon rising yellow above a big apartment building along 5 Ave. I think most people would say that it was full but I could see that there was a portion of it missing in the NE quadrant.

When I got down to TPO Peter and I spent all night bouncing back and forth between the Moon and Jupiter with passers-by. On the Moon we started out looking at Mare Orientale then switched to the terminator and finally just before heading out, back to Mare Orientale.

The western rim of the Moon is in full light so should appear smooth but in the area of Mare Orientale it was obviously lumpy. There were what looked like mountain ranges and peaks separated by varying lengths of smooth terrain. We are interpreting this as being the inner slump rings of the great walled plain as they were farther out on the limb than Lacus Veris and Lacus Autumni. I ave looked in Virtual Moon Atlas and it isn’t much help that close to the limb. It also doesn’t like to give you the labels of maria on damand.


Google Earth graphic

Over on the terminator we spent most of our time looking into the southern portion of Mare Crisium. There was a discolored area down there that looked to me like a drowned crater but did not give that impression to Peter. I can’t find any indication of a large feature there in either Grego of VMA.

Further down on the terminator we observed Langrenous and Petavius. In Langrenous we could see the complex central peak and a lot of slumping in the NW portion of the rim and a lesser amount opposite in the SW portion.

Google Earth graphic

geologic map of Langrenous

Down in Petavius we saw the central peak, Petavius C in the rim and the long, straight Rimae Petavius extending from the central peak all the way to the rim.

Google Earth graphic

geologic map of Petavious

Up above Mare Crisium we checked in on Atlas and Hercules. The extensive slumping of the wall of Atlas was noted and in Hercules we saw Hercules G on the crater floor and Hercules E and an unnamed crateron the southern rim.

Google Earth graphic

geologic map of Atlas & Hercules
1931 EDT
Nautical Twilight Ends
Astronomical Twilight Begins

TargetCygnus
ConstellationCyg
CategoryConstellation
Time
yyyymmdd.hhmm
20091005.1945 EDT
CommentsIn preparation for the upcoming Great World Wide Star Count I decided to to a limiting magnitude estimate in Cygnus to familiarize myself with the indicator stars. I also intend to make observations from Times Square and Columbus Circle which I am guessing are about the minimum 1 km separation requested for multiple observations. So on the way up to TotL I stopped briefly at each location to see what I could see.
Times Squareno stars seenMag -1
Columbus Circle3 stars in crossMag 2
TotL & TPO3-4 stars in V behind DenebMag 4.75

At2000 EDT Antares was 2:00 to the northern tower of the Time-Warner Building(s) and Sagittarius was over the GE Building pouring its contents into Times Square. The Moon is now above the trees NE or TotL and below Hamal and Sheridan in Aries. I can see Polaris and the Guardians of the Pole, Pherkad and Kochab.

2003 EDT
Astronomical Twilight Ends

TargetJupiter
Constellation
CategoryPlanet
Time
yyyymmdd.hhmm
20091005.2030 EDT
Comments
Object
Class
Classical Planet
Elongation°
Distance
Light Time
(from Earth)
4.3935 AU
m s
Distance
(from Sun)
5.0257 AU
Angular Size44.8"
Magnitude-2.7
Central Meridian
I/II/III
237.50°/8.96° /118.91°
Altitude31° 41’
Moons

Carted du Ciel graphic
Europa, Callisto and Io were out to the left of the planet. Io and Callisto were close together. Ganymede was out to the right all by itself. There was a field star a little fainter than the moons visible above the planet. I could see the Equatorial Bands but no indication of polar caps. Naked-eye &io; Cap could be seen to the lower left of the planet right on the edge of a ring of illuminated atmosphere.

Saturday, October 3, 2009

3 October 2009

Great World Wide Star Count Organized by the Windows on the Universe project of the University Corporation for Atmospheric Research, the Great World Wide Star Count is an effort to quantify the effects of light-pollution. People all around the world will be checking to see what the faintest star they can see it. In the Northern Hemisphere we will be looking into Cygnus between 9 and 23 October 2009.

Sky and Telescope
Great World Wide Star Count

Friday, October 2, 2009

2 October 2009

International Year of Astronomy 2009 graphic

The International Year of Astronomy 2009 has available a DVD (only if you are going to use it for educating others) called Eyes on the Skies that celebrates the 400th anniversary of the telescope. Individuals can downloaded it in 7 chapter increments.

Thursday, October 1, 2009

1 October 2009

October. This is one of the pecularly dangerous months to speculate in stocks in. The others are July, January, September, April, November, May, March, June, December, August and February.

Pudd'nhead Wilson
Mark Twain (Samuel Langhorne Clemens)