22 September 2007

21 September 2007

Observing LocationTotL
Observational Period2130-2400 EDT
Atmospheric Conditions
Cloud CoverClear but hazy
Temperature71° - 68° F
WindCalm
HumidityHigh
Feels LikeMild

There were no visible clouds but the sky appeared a murky gray. At midnight it was turning noticeably humid, the wind was gusting a bit and boiling had increased over the Moon. I was not able to satisfactorally focus SAR with the Barlow, which I attribute to not the best seeing, so I spent most of the night at 22x.

TransparencyFair
SeeingII - III
Instruments SAR: Coulter CT-100 Newtonian reflector - Charlie
  • Celestron Omni 20mm (21x)
  • Celestron Omni 2x Barlow
Observing PartyCharlie Ridgway
Peter and Kin scootered out to Floyd Bennett Field to do some dark sky (for NYC) observing through big glass with AAA.

TargetMoon
ConstellationSgr
CategoryLunar
Time
yyyymmdd.hhmm		20070921.2115 EDT
Comments
Lunation1048
PhaseWaxing Gibbous
Age10d11h30m
Distance
Light Time
(from earth)		383,019 km
1.28s
Elongation116.9 E°
% Illuminated72.6%
Morning Terminator Colongitude (λ E)34.0°
Evening Terminator Colongitude (λ W)214.0°
Libration in Latitude5°20’
Libration in Longitude-6°52’
Magnitude-11.0
Angular Size31'18"
Altitude24.3°

Virtual Moon Atlas graphic
in Mare Imbrium
  • Hellicon
  • Le Verbier
  • C. Herschel
  • Carlini
  • Delisle (Diopantus is in darkness)
  • Euler
  • Lambert
  • Timocharis
  • Pytheas
  • La Condamine
  • Bianchini
  • Maupertuis
  • w end of Carpatus Mountains
in Mare Nubium
  • Billialdus
  • Wolf
  • Nicollet
  • Birt
  • Rupes Recta
  • Thebit
  • Arzachel
  • Alphonsis
north Mare Fecunditatis/south Mare Crisium
  • Sinus Successus
  • Firmicus
  • Mare Undarum
  • Mare Spumans
  • Messier A
north limb
  • Endymion
  • Lacus Spei
  • Chevallier
  • Lacus Temporis

posted by Charlie at 12:49

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This is my personal record of my astronomical observations. It was written for my personal reference. The only reason it is in a blog is that a blog is a very convenient way to get the records formatted more or less uniformly and they will, hopefully, have greater longevity at Google where the servers are backed up than on my hard drive which never gets backed up. I occasionally include copyrighted material in my posts. I do this to make it convenient for me to access things I think I might want to refer to again. I think of this like making a photocopy of something I read that I put in a file where I can find it when I want it. As I understand copyright law, as explained in the DVD series Copyright Compliance by Chip Taylor Communications, this use is allowed under the Fair Use doctrine since I am not making any money on this blog, I don’t publicize the blog, and only occasionally post small excerpts of copyrighted works.


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