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 Post subject: Comet Lulin animation
PostPosted: Fri Feb 10, 2012 2:06 pm 
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Data taken on 28th February 2009 and I have only just got around to putting the animation together :shock:

http://www.youtube.com/user/newforestob ... ature=mhee

Greg

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Nexstar 11 GPS, 2 x Sky 90, M25C, MaximDL, Photshop CS3, Noel Carboni's Photoshop actions, 7 foot Pulsar fibreglass dome, Canon 40D, 100mm macro lens, 28-200mm zoom lens, 17-55mm f#2.8 zoom lens, 100-400mm zoom lens, 1.4x converter, 2x converter.
http://www.newforestobservatory.com/
http://www.flickr.com/photos/12801949@N02/


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PostPosted: Fri Feb 10, 2012 5:30 pm 
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Nice. If I'm not confusing it for another one, I vaguely recall looking for it and didn't manage to find it before it got too low.

How long a period in real time was the animation? Also the brightness variations, was that due to the comet or sky conditions? Or even both?

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PostPosted: Sat Feb 11, 2012 9:28 am 
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The animation was 4-hours and the sky conditions were awful!
Greg

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Nexstar 11 GPS, 2 x Sky 90, M25C, MaximDL, Photshop CS3, Noel Carboni's Photoshop actions, 7 foot Pulsar fibreglass dome, Canon 40D, 100mm macro lens, 28-200mm zoom lens, 17-55mm f#2.8 zoom lens, 100-400mm zoom lens, 1.4x converter, 2x converter.
http://www.newforestobservatory.com/
http://www.flickr.com/photos/12801949@N02/


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 Post subject:
PostPosted: Sat Feb 11, 2012 11:57 am 
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So they move pretty fast then. Having said that, I don't know the field of view for reference anyway...

And those sky conditions, I'd consider that excellent for around where I am!

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Canon DSLRs: 7D, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 50/1.8, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 15-85 IS
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 150 macro, 120-300 f/2.8 OS, Celestron 1325/13
Tinies: Sony HX9V.


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 Post subject:
PostPosted: Sat Feb 11, 2012 12:21 pm 
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Yep - you can clearly see movement from one four minute sub to the next - by luck the exposure time was just about spot on for this object. Field of view of the M25C 6-megapixel one-shot colour CCD on the C11 Hyperstar III is 2.4 x 1.6 degrees at 2.85 arc seconds per pixel.

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Nexstar 11 GPS, 2 x Sky 90, M25C, MaximDL, Photshop CS3, Noel Carboni's Photoshop actions, 7 foot Pulsar fibreglass dome, Canon 40D, 100mm macro lens, 28-200mm zoom lens, 17-55mm f#2.8 zoom lens, 100-400mm zoom lens, 1.4x converter, 2x converter.
http://www.newforestobservatory.com/
http://www.flickr.com/photos/12801949@N02/


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