Comet 78P/Gehrels

Comet 78P/Gehrels

 

Time Stamp: 2011 08 09, 9:08:48 UT

Motion: 0.11"/min in PA 53.2°

approximately 5 months before perihelion

Magnitude 15.6 N

Tail 3'30" or ~3.5 arc minutes or 210 arc sec PA 245 deg

perihelion date T 2012 Jan. 12.9086 TT

perihelion distance q = 2.008568 AU

earth distance delta = 1.559 AU receding

solar distance r =2.366 AU

elongation = 132.5 degrees

phase = 18.4 degrees

 

stack of 6 x 600 sec Total exposure 3600 sec or 60 minutes or 1 hour

0.3-m f/6.4 Schmidt-Cassegrain + CCD + Red filter

C. Bell H47 Vicksburg

 

Classification: Jupiter-family Comet T_jup = 2.887

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Taken on August 12, 2011
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