http://www.cometal.bigblog.com.au/post.do?id=211895
This is my first comet image taken from the ground. I am not yet able to track the camera correctly so i had to rely on star trails. Using the canon 450d , unmodified, I found this green sploch in the right place. image time aprox 90sec , date 20080804 08:30 pm local Oz east coast time.
Ephemeris of comet C/2007 N3 Lulin
日期 Geo R.A. Geo Dec R (AU) 距离 El ? Mag
05 八月 2008 19h 00m 05.1s -20°56' 30" 2.5643 1.6277 151.3 11.7
10 八月 2008 18h 39m 57.6s -21°21' 14" 2.5091 1.6327 141.8 11.6
15 八月 2008 18h 20m 40.6s -21°36' 45" 2.4539 1.6528 132.5 11.5
20 八月 2008 18h 02m 40.7s -21°44' 03" 2.3986 1.6861 123.6 11.4
25 八月 2008 17h 46m 15.8s -21°44' 40" 2.3434 1.7305 114.9 11.4
30 八月 2008 17h 31m 35.3s -21°40' 24" 2.2882 1.7835 106.7 11.4
04 九月 2008 17h 18m 40.8s -21°32' 56" 2.2331 1.8430 98.9 11.3
09 九月 2008 17h 07m 28.5s -21°23' 41" 2.1781 1.9067 91.4 11.3
14 九月 2008 16h 57m 50.6s -21°13' 45" 2.1233 1.9725 84.3 11.3
19 九月 2008 16h 49m 37.9s -21°03' 54" 2.0687 2.0388 77.5 11.2
