Thread: viewing Lulin
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Old 23-02-2009, 05:50 PM
Rob_K
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Rob_K is offline
 
Join Date: Oct 2006
Location: Bright, Vic, Australia
Posts: 2,187
Quote:
Originally Posted by jjjnettie View Post
That's a terrific little animation.
Over what period of time was it taken?
Thanks jjjnettie! The animation was over a period of 70 minutes, from just before midnight EDST (UT+11). Taken with a piggy-backed Canon 400D at 55mm, each of the 10 subs a 3 min exposure at ISO 1600, F/4.5.

Had a great time observing it on Saturday night at Bungowannah near Albury NSW with a group of local people. Watched it all night, from when it first cleared the horizon to when daylight washed it out on Sunday morning. Highlight of our night - easy naked eye, and we used everything from binocs up to an 18" scope to keep an eye on it! Each night it's been getting significantly brighter, but with wall-to-wall clouds at the minute I might miss its brightest!

Have attached a couple of versions of stacks of the images I took last night which clearly show the 'kink' in the ion tail. First is stacked in DSS, comet mode using Median stacking mode to reduce star impact, and second a Registax stack.

Cheers -
Attached Thumbnails
Click for full-size image (lul 22 feb 09, 13-30 UT a crop.jpg)
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Click for full-size image (lul 22 feb 09, 13-30 UT reg.jpg)
153.4 KB41 views
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