Doh!!! That's Ganymede not Callisto. I need more sleep. DT --- On Wed, 7/22/09, daniel turner <outwest112@yahoo.com> wrote:
From: daniel turner <outwest112@yahoo.com> Subject: [Utah-astronomy] shadow of Callisto on Jupiter To: utah-astronomy@mailman.xmission.com Date: Wednesday, July 22, 2009, 3:15 PM
I went out late last night and found a hole in the clouds.
DT
Time: 2009 July 22 0730-1000 UT.(Wednesday morning MDT) Location: Puddle Valley equiptment: 17.5 inch dobsonian cloudiness: 70% down to 5% and back up to 70% during the session. Wind: calm at start increasing to a shroud russle and then back to calm. Temperature: 60F falling to 55F. Transparency: good 4/5 most of session but haze built up as twilight approached. seeing: fair 3/5. split ETA AQR at high power. Jupiter: at 0744UT Three moons to east 1 to the west and a shadow transit in progress. Callisto. later took a left eye views to save night vision with right eye. at 0829 UT shadow dead center moon approaching the planet. at 0912 UT moon is gone apparently in transit but not visable. shadow 3/4 of the way accross planet. touring in HER at 175x ngc5899: galaxy in HER, wide spindle with prominent bulge and stellar nucleus almost at the limit of detection. Beautiful object. ngc6239: galaxy 5:3 spindle bulge less prominent doesn't curve the outline. winking stellar nucleus with averted vision. ngc6229: globular cluster round fairly dense center outter half resolved to graininess. tour at ALPHA CAP at 175x m72: globular cluster triangle irregular shape. lots of grainy stars accross the not very dense middle. ngc6818: planetary neb, greenish round disk with a winking central star. ngc6903: galaxy, 3:2 spiral involved with a bright field star. ngc6814: galaxy, face on spiral two clockwise arms subdued nucleus slightly stellar. ngc6945: galaxy, wide spindle 1.5:1, small smudge no details near a bright star. m75: globular cluster, slightly triagular with a bright stellar nucleus. grainy at outter edge not really resolved to stars. touring ALPA SGE m71: globluar cluster, very irregular in a very rich starfield lots of resolved stars in a background of haze in triangle shape. ngc6905: planetary nebula, structure at high power, central star almost lost in glow. a hint of anullarity. ngc6891: planetary nebula, bluish star that doesn't come to sharp focus. various: Pleaides up over mountains at 0230. venus clears horizon at 0346. Mirak and ngc404: star is orange, galaxy is round glow with semistellar nucleus a hint of spiral arms. ic10: galaxy in CAS, dim smudge near a bright star. meteor at 0208 passing through the head of DRA comming from ALPHA CAS. meteor at 0251 in SAG comming from ALPHA CAP. meteor at 0255 in AQR comming from ALPHA CAP. meteor at 0344 in square of PEG comming from ENIF.
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