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