29 August 2007

29 August 2007

Observing LocationPSC
Observational Period1145-1200 EDT
Atmospheric Conditions
Cloud CoverClear
Temperature80s
WindCalm
HumidityModerate
Feels LikeHot and a little humid

It was hazy earlier this morning but I can not detct any haze now.

TransparencyExcellent
SeeingI
InstrumentsBrunton Compact 8x21 binocular w/Welco gold welder’s glass - Charlie
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationLeo
CategorySolar
Time
yyyymmdd.hhmm
20070829.1145 EDT
Comments
Distance
Light Time
1.009864 AU
8ms
Angular Size31'43.5"
Altitude55.4°
Heliographic Latitude
(B0)
7.14°
Heliographic Longitude
(L0)
160.99°
Position Angle
(P)
20.34°
Carrington rotation number
(CR)
2060

I only see the same spot today, just a little closer to the leading limb.

 Groups SpotsR
North0 0 0
South1 1 11
Total1 1 11
R = (Groups * 10) + Spots)

Group 969
Heliographic Latitude -3°
Heliographic Longitude 184°
Carrington rotation number
(CR)
2060
Mcintosh SystemAxx
This spot is still too small for me to make out any detail in it.



Observing LocationMet Oval
Observational Period2100-0045 EDT
Atmospheric Conditions
Cloud CoverClear
becoming
Broken Clouds
Temperature77°F
WindCalm to Light Breeze
HumidityModerate
Feels LikeHumid and a little bit cool

When I arrived it was clear all around but before I left clouds were filling in, apparently from the south. It was initially calm but then the wind picked up a bit for a while and died down again before I left.

TransparencyGood
SeeingI
Instruments SAR: Coulter CT-100 Newtonian reflector - Charlie
  • ~24mm Kellner w/helical focuser (18x)
  • Celestron Omni 20mm (21x)
  • Celestron Omni 2x Barlow
Observing PartyCharlie Ridgway

TargetJupiter
ConstellationOph
CategoryPlanet
Time
yyyymmdd.hhmm
20070829.2100 EDT
Comments
Object
Class
Classical Planet
Elongation°
Distance
Light Time
(from Earth)
AU
ms
Distance
(from Sun)
Au
Angular Size38.5"
Magnitude-2.2
Central Meridian
I/II
47.17°/278.09°
Altitude22°
Moons

Starry Night Starter graphic
Io, Ganymede and Callisto were in a staggered line to one side of the planet and Europa was all by itself a long way from the planet’s eastern limb. ω Oph was way out to the west but within the 36x FoV. The moons all looked very orange.

TargetMoon
ConstellationPsc
CategoryLunar
Time
yyyymmdd.hhmm
2007 EDT
Comments
Lunation1047
PhaseWaning Gibbous
Age17.14d
Distance
Light Time
(from earth)
362,417 km
s
Elongation°
% Illuminated96.2%
Morning Terminator Colongitude (λ E)114.3
Evening Terminator Colongitude (λ W)294.3
Libration in Latitude-1°43’
Libration in Longitude-1°32’
Magnitude-12.80
Angular Size32'97"
Altitude25°

Virtual Moon Atlas graphic

The libration arrow is small and pointing around Schicard

Relief is discernible as far away from the terminator as Fracastoria but there is less the farther you get from the terminator and the with of the relief zone narrows toward the poles.

Power: 36x

  • Peirce, Picard
  • There is a somewhat crescent-shaped white spot inside the eastern rim of Mare Crisium opposite Proclus in the neighborhood of Promontorium Olivium and Dorsum Oppel.
  • Langrenus, Lohse, Vendelinus, Petavius, Snellius, Hase, Funerius,
  • Janssen, Fabricius, Metius, Steinheil, Watt
  • Vlacq, Biela, Rosenberger
  • Fracastoria and a ray from there heading back toward Tycho passing Maurolycus and Maginus
  • Two faint arcs or light and shadow around Mare Nectaris; the larger, outer arc is the Altai Scarp, Rupes Altai
  • The terminator is passing through something big down in the south; Boussingailt ?
  • Posidonius, ray from Menelaus up through Mare Serenitatis into the “dunce cap” passing at the end of the highlands forming the western top edge of Mare Serenitatis and on past Plana/Mason or was it Burg
  • Alexander, Eudoxus, Aristoteles
  • Hercules, Atlas, Endymion
  • Cleomedes, Geminus, Messala
  • Grimaldi, Ricciolo

Power: 43x

  • The Montes Cordilera are a white stripe that I don’t always see. The area west of them is a very flat white and I can’t see any of the lakes. This is the side of my FoV where ghosting is most apparent so I am not seeing as sharply as I should be.
  • Schlüter ?
  • Montes Recti, Montes Teneriffe, Mons Pico, Montes Spitzbergen
  • I can see the inner edge of the Alps, the indentation where the Alpine Valley begins, and the bay just to the west of its outlet into Mare Frigoris, but not the valley itself.
  • There appears to be a fairly straight ray, or at least a white stripe, from Proclus across the top of Palus Somni to Montes Taurus and less strongly from there to Posidonius.
    (see Rükl plate 26)
  • le Monnier, Apollo 17 landing site

Power: 18x

  • Burkhardt
  • Bilharz
  • Messier A ray

Disclaimer
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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