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  #1  
Old 26-02-2012, 03:36 PM
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rcheshire (Rowland)
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Rho Ophiuchus Antares

This one captured early morning at Snake Valley.

47 x 2.5 mins, no darks - bias and flats only.

Canon 1000D cooled (set at 7C just above dew point) Astrodon Inside spectrum modified.

200mm F/4.0 iso800

Processed in Pixinsight. EDIT: Finished with Wipe and Optimise in StarTools
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Last edited by rcheshire; 26-02-2012 at 04:33 PM.
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  #2  
Old 26-02-2012, 04:53 PM
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Very detailed Rowland. Pops out at you. Composition is good as well.

How is the camera cooled as a matter of interest?

Craig
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Old 26-02-2012, 05:01 PM
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RickS (Rick)
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Very nice, Rowland. You captured the dust well!
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Old 26-02-2012, 05:07 PM
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rcheshire (Rowland)
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Thanks Craig. The cooling system comprises a copper finger in contact with the back of the CMOS sensor. A Peltier module/heat sink, fan and pulse width modulation supplied by a microprocessor provides temp control down to 30C below ambient.
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Old 26-02-2012, 05:11 PM
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mill (Martin)
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Looks very nice Rowland
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Old 26-02-2012, 05:16 PM
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rcheshire (Rowland)
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Thanks Rick and Martin.

Looking forward to another dark night.
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Old 26-02-2012, 05:29 PM
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Nico13 (Ken)
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Very nice Rowland,
It was nice to meet you the other night and see your gear in action, great shot.

Ken.
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  #8  
Old 26-02-2012, 07:14 PM
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jjjnettie (Jeanette)
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Beautiful! I love this time of year, you can shoot a little bit of everything. (if you can actually see the sky for clouds lol)
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Old 26-02-2012, 07:52 PM
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Very nice view Rowland, thanks.
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Old 26-02-2012, 08:00 PM
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Thanks Ken Jen and Lester. It is a great time if you are prepared to stay up.

Nice meeting you too Ken. Do you have anything taken with the 135 lens. The FOV would be ideal at a guess. Sometimes 200 is a bit of a squeeze.
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  #11  
Old 26-02-2012, 08:00 PM
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Nice I also pictured this last night. Not as large as your very nice pic but is is OK.
11 frames each 1 minute, 40d + 85mm / 1.8 squeezed to f/2.2 @ ISO 1600 stacked with DSS and enhanced by Photoshop.
Last night 04:00 (UTC+8) from Sanur, Bali.

http://sky.velp.info/skypics3/large2...es-rho-oph.jpg
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  #12  
Old 26-02-2012, 08:13 PM
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rcheshire (Rowland)
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That is very nice. FOV is terrific. The loop of dust around the back is stunning. I think 200mm is too much for this area.
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Old 26-02-2012, 09:02 PM
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Love the colours rowland. Nice!
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  #14  
Old 26-02-2012, 10:16 PM
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ballaratdragons (Ken)
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Fantastic result Rowland

It's nice to see the finished product
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  #15  
Old 26-02-2012, 10:38 PM
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Nice result Rowland!
It is always a thrill when I see results from sessions when I was there.

Malcolm
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  #16  
Old 26-02-2012, 11:14 PM
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Wow! looks pretty cool that Rowland, some great contrasts and colours there and I like the orientation of the framing too.

Not exactly a traditional rendition but it made me go wow

Mike
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  #17  
Old 27-02-2012, 07:17 AM
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multiweb (Marc)
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Just love that pic! So much color but yet smooth and detailed. Very very cool.
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  #18  
Old 27-02-2012, 08:34 AM
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Done very well there Rowland! You'd have to be very happy with that!

Darren
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  #19  
Old 27-02-2012, 11:45 AM
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rcheshire (Rowland)
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Thanks Paul, Ken, Malcolm, Mike, Marc, Darren.

Pixinsight does a good job with processing. I'm still learning StarTools, which does a great job tweaking.

Looking forward to another session at Snake Valley.
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  #20  
Old 01-03-2012, 06:44 PM
Ross G
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A beautiful photo Rowland.

Great colours.


Ross.
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