Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: RobertM on Sep 22, 2010, 18:15:43

Title: Les Granges - Supernova remnant Simeis 147
Post by: RobertM on Sep 22, 2010, 18:15:43
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
Title: Re: Les Granges - Supernova remnant Simeis 147
Post by: Rocket Pooch on Sep 22, 2010, 19:19:58
Its massive  :o
Title: Re: Les Granges - Supernova remnant Simeis 147
Post by: Mike on Sep 22, 2010, 21:13:31
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.
Title: Re: Les Granges - Supernova remnant Simeis 147
Post by: MarkS on Sep 23, 2010, 06:38:59

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
Title: Re: Les Granges - Supernova remnant Simeis 147
Post by: RobertM on Sep 23, 2010, 09:43:17
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.
Title: Re: Les Granges - Supernova remnant Simeis 147
Post by: mickw on Sep 23, 2010, 17:43:46
Quote
I'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)
Title: Re: Les Granges - Supernova remnant Simeis 147
Post by: Fay on Sep 23, 2010, 22:35:11
I really like that Robert, did not know you had done that one. It has been on my to do list for ages
Title: Re: Les Granges - Supernova remnant Simeis 147
Post by: MarkS on Feb 12, 2011, 10:11:56

Nice version of this on today's APOD (12 Feb 2011): http://apod.nasa.gov/apod/ap110212.html
Title: Re: Les Granges - Supernova remnant Simeis 147
Post by: Fay on Feb 12, 2011, 10:15:24
I really like it, but would need a good DSC to have a chance
Title: Re: Les Granges - Supernova remnant Simeis 147
Post by: RobertM on Feb 12, 2011, 15:40:10
That's one of the best if not the best I've seen of that.