Mar13 CN Imaging/Sketching Contest Poll
Posted 02 April 2013 - 06:10 PM
NGC 5139 - Omega Centauri (the mother of all globuler clusters).
24 x 5min. subs + darks and 10 x 60sec. subs. Modified Canon 1100D(T3), Skywather 120ED pro refractor, SW EQ6 mount guided with Celestron Nexguide.
Larger version: http://astrob.in/37475/
Orion's belt and sword region.
Image acquired from Coronado National Forest (Southeastern AZ) @ ~6000 feet on 02/09/2013
28 x 4min (112 mins)
Modded 350D w/200mm f/2.8L @ f/3.5
AG w/Orion 80ED + Orion Deep Sky Imager
Here's my entry - the Leo Triplet:
High Resolution Version and more image information available at http://www.astronome...php?c=113&p=490
Base 200mm image is from 119 x 10 min subs at ISO 800 plus 64 x 5 minute subs (25 hours total) at ISO 800 captured with a Gary Honis modified Canon 450D (Baader mod) using a Canon EF 200mm f/2.8L II USM prime lens at f/3.5. Guiding was through a Celestron C-8 using a ONAG on-axis guider, Lodestar autoguider and Phd Guiding.
M65 and M66 detail image is from 89 x 5 minute subs at ISO 1600 (7 1/2 hours) via an orange tube Celestron C-8 at 1160mm (f/5.8) with the same modified Canon 450D. Guiding was through a Celestron C-8 using a ONAG on-axis guider, Lodestar autoguider and Phd Guiding.
NGC 3628 detail image is from 329 x 3 minute subs at ISO 1600 (16 1/2 hours) via an orange tube Celestron C-8 at 1260mm (f/6.3) with the modified Canon 450D. Guiding was with an Astro-Physics 80m f/11 guidescope using an Orion SSAG and Phd Guiding.
Thanks for looking!
Please vote for your favorite image to send to the finals. Voting will conclude on April 8th at Midnight ET.
Many thanks to all who took part in the contest!
Posted 09 April 2013 - 03:52 AM
Skywatcher 120 ED pro refractor; SW EQ6 Synscan mount;
Celestron Nexstar 8SE SCT; Tasco 90mm refractor;
Modified Canon 1100D (T3); Canon 550D (T2i);
Canon 10-22mm Ultra wide angle lens; Canon 18-55mm kit lens;
Canon EF 70-200mm F2.8 L USM Lens.
Celestron Nexguide autoguider.
Posted 09 April 2013 - 05:54 PM
Posted 09 April 2013 - 09:55 PM
Posted 11 April 2013 - 01:40 PM
Posted 12 April 2013 - 10:05 PM
You are showing the power of stacking so many images:
The square root of 329 is 18.
That's 1/18th the noise & it shows.