Thursday, February 5, 2009

5 February 2008

I have done some checking and it looks like there may be some early morning opportunities to see ISS and the Shuttle flying in tandem before docking, the best being a short pass about 0506 EDT on 20Feb09, assuming the launch does occur on 19Feb09. If the launch does occur on that day it should be at 0441 EDT, before the start of Astronomical Twilight, which would make the flyby and MECO visible from NYC.



Observing LocationBowery @ E 3 St, New York, NY
Observational Period1600-1615 EDT & 1730-1745 EDT
Atmospheric Conditions
 1600 EDT1730 EDT
Cloud CoverClearclear
Temperature22° F21° F
WindGentle BreezeGentle Breeze
HumidityModerateModerate
Barometric Pressure30.29" Hg
Rising
30.33" Hg
Rising
Feels LikeVery ColdVery Cold

TransparencyExcellentExcellent
Seeing  
InstrumentsNaked-eye - Charlie
Observing PartyCharlie Ridgway

TargetMoon
Constellation
CategoryLunar
Time
yyyymmdd.hhmm
20090205.1600 EDT & 20090205.1730 EDT
Comments
Lunation1065
PhaseWaxing Gibbous
Age10.60780d
Distance
Light Time
(from earth)
364,166.2 km
1.21s
Elongation129.22° East
% Illuminated81.7%
Morning Terminator Colongitude (λ E)°
Evening Terminator Colongitude (λ W)°
Libration in Latitude°
Libration in Longitude°
Magnitude-11.3
Angular Size32' 48.97"
Altitude49.0119°

Virtual Moon Atlas graphic

The gibbous moon is about 45° up in the eastern sky. At 1730 EDT, with the Moon at about 55° altitude, there was good contrast on the surface of the Moon and between the Moon and the early twilight sky. I could make out Mare Imbrium, Oceanus Procelarum, Mare Crisium and Mare Tranquilitatis.

TargetVenus
ConstellationPsc
CategoryPlanet
Time
yyyymmdd.hhmm
20090205.1600 EDT & 20090205.1730 EDT
Comments
Object
Class
Classical Planet
PhaseWaning Crescent
Elongation45.03° East
% Illuminated37.9%
Distance
Light Time
(from Earth)
0.5232247 AU
4m 21.12s
Distance
(from Sun)
AU
Angular Size31.88"
Magnitude-4.6
Altitude38.6773°

Meridian graphic
At 1600 EDT I was not able to locate Venus. I don’t know if the sky was too white where it was or if I just wasn’t picking it out.

At 1730 EDT Venus was very bright against the twilight sky and was at about 37° altitude.

Nothing else was visible.