ICEINSPACE
Moon Phase
CURRENT MOON
Waxing Crescent 14%
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23-12-2011, 06:01 AM
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Registered User
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Join Date: Jan 2006
Location: E.P. S.A.
Posts: 4,963
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Comet Lovejoy 23-12-11
Hi all, Did an alnighter so bit dopey now. Wanted to get the comet at the earliest possible time; but was hindered by cloud just in the comet's position. Thankfully it broke up before the sky lightened too much. This is a 3 minute exposure with 50mm lens at F3.2. The image is not cropped. I estimate the tail to be 20 degrees, although if someone knows the FOV of a 50mm lens on a Canon 20Da camera we may be able to measure it more accurately.
http://i638.photobucket.com/albums/u...s/1d5bf314.jpg
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23-12-2011, 06:08 AM
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JHT
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Join Date: Jun 2007
Location: Penwortham
Posts: 3,039
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Hi, Lester.
Awsome image!
Looks great aginst the cloud.
Cheers,
Justin.
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23-12-2011, 06:11 AM
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Registered User
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Join Date: May 2006
Location: Adelaide
Posts: 781
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Smashing
I found a nice spot near McLaren Vale only to find cloud starting to roll in right where Lovejoy was. It was clear all night and satellite shows it wouldn't be around for long . Oh well, next time.
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23-12-2011, 06:22 AM
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The Observologist
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Join Date: Dec 2006
Location: Billimari, NSW Central West
Posts: 1,664
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Hi Lester,
I saw it this morning for the first time (just a 5-10 minute glimpse at 3.20am) and it lives up to all the hype. Superb, rivals C/2006 P1 McNaught -- and that's saying something. Clouds came from everywhere as I was setting the camera up.
Wonderful image Lester!
Re length of the tail, from your image I'd say 17-18 degrees.
After using Megastar and doing a more careful measure , I'd say a whisker under 15 degrees.
Best,
Les D
Last edited by ngcles; 23-12-2011 at 06:43 AM.
Reason: Second estimate on tail
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23-12-2011, 06:29 AM
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Registered User
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Join Date: Aug 2007
Posts: 81
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Very nice
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23-12-2011, 06:38 AM
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Registered User
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Join Date: Feb 2005
Location: Monto
Posts: 16,738
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Spectacular!!
Thanks for the camera info too.
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23-12-2011, 07:14 AM
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Registered User
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Join Date: Jan 2006
Location: E.P. S.A.
Posts: 4,963
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Thanks Justin, Dan, Les, Virgs and Jjj for your comments.
Thanks for the calculation Les of the tail length, although I thought is would be longer than that. I could follow the tail for 3 FOVs in 7x50 binoculars.
All the best.
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23-12-2011, 07:22 AM
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Stargazer
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Join Date: Jul 2009
Location: Brisbane, Australia
Posts: 842
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Holy moly Lester, this is just beautiful! Makes me even more excited about trying to see Lovejoy tomorrow morning. Fingers crossed it isn't clouded out like this morning was
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23-12-2011, 07:24 AM
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Registered User
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Join Date: May 2006
Location: Adelaide
Posts: 781
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What type of lens do you have?
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23-12-2011, 07:27 AM
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Registered User
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Join Date: Aug 2009
Location: Waitakere Ranges, New Zealand
Posts: 2,260
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Incredible! One of the best images so far.
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23-12-2011, 07:31 AM
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Registered User
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Join Date: Aug 2007
Location: Beautiful SE Tassie
Posts: 4,734
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Fabulous Lester, lucky bugger. Tail looks magnificent.
Alas, no luck for me today.
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23-12-2011, 07:33 AM
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Registered User
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Join Date: Dec 2006
Location: Lenswood SA
Posts: 53
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Top shot Lester!
Cheers,
Jeff
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23-12-2011, 09:11 AM
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Registered User
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Join Date: Apr 2010
Location: ardrossan south australia
Posts: 4,918
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just beautiful Lester - work of art. Regards Ray
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23-12-2011, 09:17 AM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,187
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Agree with Rolf, the best I've seen - wow!
Mike
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23-12-2011, 09:24 AM
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Registered User
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Join Date: Jan 2006
Location: E.P. S.A.
Posts: 4,963
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Thanks for your comments, I appreciate them all.
The lens is a Canon 50mm F1.4 that I stop down to F3.2, it is not the "L" series lens.
All the best.
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23-12-2011, 09:24 AM
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Sir Post a Lot!
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Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,762
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Beautiful Lester. Would love to have seen a bit of the foreground but it's a beautiful comet!
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23-12-2011, 09:29 AM
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Registered User
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Join Date: Jan 2006
Location: E.P. S.A.
Posts: 4,963
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Thanks Mike. After yesterdays shots I chose to keep the foreground out of the FOV, as the mount tracks and the foreground becomes blured. This exposure was much longer than yesterdays so the foreground would have deteriated.
All the best.
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23-12-2011, 09:36 AM
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Sir Post a Lot!
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Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,762
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Ah, didn't know you were tracking. That explains it.
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23-12-2011, 09:36 AM
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Sir Post a Lot!
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Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,762
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If I could be bothered dragging my EQ6 out to the Coast, I'd take one exposure with tracking on, and one with tracking off, and combine them.
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23-12-2011, 09:55 AM
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Rob
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Join Date: Sep 2009
Location: Adelaide, South Australia
Posts: 1,201
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Amazing shot Lester
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