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26-02-2012, 03:36 PM
Registered User
Join Date: Apr 2010
Location: Geelong
Posts: 2,617
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 .
26-02-2012, 04:53 PM
Craig
Join Date: May 2007
Location: Adelaide, South Australia
Posts: 558
Very detailed Rowland. Pops out at you. Composition is good as well.
How is the camera cooled as a matter of interest?
Craig
26-02-2012, 05:01 PM
PI cult recruiter
Join Date: Apr 2010
Location: Brisbane
Posts: 10,584
Very nice, Rowland. You captured the dust well!
26-02-2012, 05:07 PM
Registered User
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Location: Geelong
Posts: 2,617
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.
26-02-2012, 05:11 PM
sword collector
Join Date: Oct 2006
Location: Mount Evelyn
Posts: 2,925
Looks very nice Rowland
26-02-2012, 05:16 PM
Registered User
Join Date: Apr 2010
Location: Geelong
Posts: 2,617
Thanks Rick and Martin.
Looking forward to another dark night.
26-02-2012, 05:29 PM
Galaxy Hunting
Join Date: Jul 2009
Location: Geelong region.
Posts: 947
Very nice Rowland,
It was nice to meet you the other night and see your gear in action, great shot.
Ken.
26-02-2012, 07:14 PM
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Join Date: Feb 2005
Location: Monto
Posts: 16,741
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)
26-02-2012, 07:52 PM
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Join Date: Jan 2006
Location: E.P. S.A.
Posts: 4,963
Very nice view Rowland, thanks.
26-02-2012, 08:00 PM
Registered User
Join Date: Apr 2010
Location: Geelong
Posts: 2,617
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.
26-02-2012, 08:00 PM
Dark sky rules !
Join Date: Dec 2011
Location: 33S 150E (AU holiday)
Posts: 1,181
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
26-02-2012, 08:13 PM
Registered User
Join Date: Apr 2010
Location: Geelong
Posts: 2,617
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.
26-02-2012, 09:02 PM
Registered User
Join Date: Oct 2008
Location: Sydney
Posts: 1,811
Love the colours rowland. Nice!
26-02-2012, 10:16 PM
The 'DRAGON MAN'
Join Date: Jan 2005
Location: In the Dark at Snake Valley, Victoria
Posts: 14,412
Fantastic result Rowland
It's nice to see the finished product
26-02-2012, 10:38 PM
Bright the hawk's flight
Join Date: Nov 2008
Location: Mt Duneed Vic
Posts: 3,982
Nice result Rowland!
It is always a thrill when I see results from sessions when I was there.
Malcolm
26-02-2012, 11:14 PM
Highest Observatory in Oz
Join Date: May 2006
Location: Canberra
Posts: 17,689
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
27-02-2012, 07:17 AM
ze frogginator
Join Date: Oct 2007
Location: Sydney
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27-02-2012, 08:34 AM
Registered User
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Location: Werribee, Australia
Posts: 1,053
Done very well there Rowland! You'd have to be very happy with that!
Darren
27-02-2012, 11:45 AM
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Join Date: Apr 2010
Location: Geelong
Posts: 2,617
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.
01-03-2012, 06:44 PM
Registered User
Join Date: Apr 2007
Location: Cherrybrook, NSW
Posts: 5,013
A beautiful photo Rowland.
Great colours.
Ross.
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