This is a very large and faint Supernova remnant on the Auriga/Taurus border. It's my second attempt at this but I wasn't able to get sufficient quality sub-exposures as dawn was approaching. My next attempt will be 4-5 hours exposure which should be enough even for South East London. This was the only narrow band image I did at Les G.
Field of view: 5.3 x 4 degrees which makes it a larger angular diameter than the Cygnus loop.
(http://farm5.static.flickr.com/4112/5007278823_9b3a42e99e_b.jpg)
Capture details:
Exposure: 5 x 600s
Filter: Baader Ha 7nm passband
Camera: Finger Lakes ML 8300 @-30C
Optics: Canon 200L lens@f/3.2
Conditions: Clear but dawn dawn light
Sky Magnitude: approx 5.5
Location: Les Granges, Haut Alps, Southern France
Date: 5,8/9/2010
Guiding: Lodestar + converted 50mm finder
TFL
Robert
Its massive :o
Looks like a ball of spider web. Lovely image. Would be fantastic if you could do some more exposures of this. It looks like it needs many hours of captures.
Wow - that's a really cool object!
By Cygnus loop, do you mean the Veil Nebula complex? Does it also have other pretty colours like the Veil does?
Mark
Yes, I meant the Veil and I'm not sure it has any pretty colours. Ha is faint enough, I've never seen it in tri-band so I don't know.
QuoteI'm not sure it has any pretty colours
Scroll to near the bottom of the images - interesting write up too
http://www.ing.iac.es/PR/last_img.html (http://www.ing.iac.es/PR/last_img.html)
I really like that Robert, did not know you had done that one. It has been on my to do list for ages
Nice version of this on today's APOD (12 Feb 2011): http://apod.nasa.gov/apod/ap110212.html
I really like it, but would need a good DSC to have a chance
That's one of the best if not the best I've seen of that.