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View Full Version here: : Comet Lemmon - The Movie


Rob_K
21-01-2013, 05:27 PM
Cast of thousands of stars! :P Animation of C/2012 F6 moving across the Southern Cross, 18-20 Jan 2013.

http://i727.photobucket.com/albums/ww271/Rob_Kau/F6animlge18-20Jan2013.gif

Each of the three subs is a nightly stack of 6-8 frames taken with Canon 400D on Vixen Polarie, 134mm, ISO 1600, F/5.6.

Cheers -

ChrisM
21-01-2013, 05:34 PM
Good framing Rob. I'll have to track this one down!

Chris

tilbrook@rbe.ne
21-01-2013, 06:09 PM
Love it Rob!

Comet Lemmon has been a real surprise.
What's the gas that gives such an intense green colour?
Don't think ever seen one this green before.

Cheers,

Justin.

Rob_K
21-01-2013, 07:06 PM
Thanks guys.



Hi Justin. Ionized molecular C2 gas gives comets like this the distinctive green colour. The more diatomic carbon, the more green.

Cheers -

tilbrook@rbe.ne
21-01-2013, 07:17 PM
Thanks Rob!

Cheers,

Justin.

spacezebra
21-01-2013, 07:51 PM
Brilliant Rob

You scored on that one.

Cheers Petra d.

colinmlegg
22-01-2013, 11:23 AM
Just love the green.