作者:Michael Jäger,澳大利亚
拍摄时间:9.20
地点:Stixendorf Austria
Details:
Comet Hartley 2 is now on the way to a close flyby of the Earth. This image showed it on sep. 20 UT 1.57,taken with 10"/3.8 and CCD (KAF 6303) RGB 210/270/270 seconds
103P/Hartley:
Comet is easily visible by direct vision through 8x40, coma is very large,
probably more then 20'. 20 cm Newton using 30x magnification and swan band
filter shows coma larger then 1/3 FOV (1?6').
2010 October 1.79 UT: m1=6.6, Dia.=&20', DC=3, 8x40.