Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: MarkS on Sep 28, 2009, 06:27:53

Title: M45 from Lydd - Work in Progress
Post by: MarkS on Sep 28, 2009, 06:27:53
Dee saw a fuzzy object rising above the horizon and asked me if I knew what it was - it was M45.   After trying to count the 7 sisters with the naked eye she looked at them through binoculars and said, "Oh, I'd like a picture of that".

So here it is - "Dee's Nebula"

M45 taken from Norwood Farm near Lydd - Sat 26/09/2009
24 x 5min
Modified Canon EOS350D on Skywatcher ED80 with William Optics 0.8x MkII reducer/flattener

The light leakage at the bottom right looks like residual amp glow that the darks did not remove.  I'll try to optimise the darks a bit better when I process this properly.

(http://gallery.orpington-astronomy.org.uk/albums/userpics/10046/normal_m45_260909.jpg)

Here is the larger version (which is a 2x2 bin of the full frame):
http://gallery.orpington-astronomy.org.uk/albums/userpics/10046/m45_260909.jpg

Mark
Title: Re: M45 from Lydd - Work in Progress
Post by: JohnP on Sep 28, 2009, 06:44:39
Fantastic Mark - lovely star colours & fantastic FOV..

Don't think 'Dee's Nebula' will stick though somehow.....  :lol:

John
Title: Re: M45 from Lydd - Work in Progress
Post by: RobertM on Sep 28, 2009, 08:27:22
I really like that Mark, a great image of Dees Nebula ooops! the Pleiades.  An excellent fov and as John has mentioned, the star colours are lovely.
Title: Re: M45 from Lydd - Work in Progress
Post by: The Thing on Sep 28, 2009, 08:50:11
OMG2

The colours are fantastic.
Title: Re: M45 from Lydd - Work in Progress
Post by: Rocket Pooch on Sep 28, 2009, 09:43:21
ok thats it I'm getting a modded SLR!

Title: Re: M45 from Lydd - Work in Progress
Post by: JohnP on Sep 28, 2009, 11:02:06
Quoteok thats it I'm getting a modded SLR!
:lol: :lol: :lol:

Just think 1-shot colour.........
Title: Re: M45 from Lydd - Work in Progress
Post by: Daniel on Sep 28, 2009, 19:49:53
Fantastic man, and amazing you got this over the weekend, I did 2 hours on M45 with the hyperstar myself, and the results were no way near as good.

Daniel
:O)
Title: Re: M45 from Lydd - Work in Progress
Post by: JohnP on Sep 28, 2009, 20:43:40
Mark - Looking at it yet again - I love the brown dust that is showing through... This really is a top notch image - Well done,  John
Title: Re: M45 from Lydd - Work in Progress
Post by: Fay on Sep 28, 2009, 20:53:13
Oh Mark, you have done it again. Have been looking forward to these images, really great, lovely field of view!!!
Title: Re: M45 from Lydd - Work in Progress
Post by: Mike on Sep 28, 2009, 21:11:28
Fantastic image Mark. Lovely colours.
Title: Re: M45 from Lydd - Work in Progress
Post by: MarkS on Sep 29, 2009, 06:39:59
Quote from: JohnP
I love the brown dust that is showing through...

Yes, the outer "brown" nebulosity is just beginning to appear.  Another 10 hours would bring it out nicely!
Title: Re: M45 from Lydd - Work in Progress
Post by: MarkS on Sep 29, 2009, 06:41:57
Quote from: Daniel
I did 2 hours on M45 with the hyperstar myself, and the results were no way near as good.

It's the difference a dark site (with a very clear sky) makes!  Get your hyperstar down to one and your images will be truly awesome with your amazingly fast F-ratio.

Mark
Title: Re: M45 from Lydd - Work in Progress
Post by: Rocket Pooch on Sep 29, 2009, 16:54:06
Goto love those ED80.
Title: Re: M45 from Lydd - Work in Progress
Post by: Daniel on Sep 29, 2009, 17:01:54
Quote from: MarkS on Sep 29, 2009, 06:41:57
Quote from: Daniel
I did 2 hours on M45 with the hyperstar myself, and the results were no way near as good.

It's the difference a dark site (with a very clear sky) makes!  Get your hyperstar down to one and your images will be truly awesome with your amazingly fast F-ratio.

Mark

Don't fancy a camping trip do you? :P
Title: Re: M45 from Lydd - Work in Progress
Post by: MarkS on Sep 29, 2009, 17:35:09
Quote from: Space Dog
Goto love those ED80.


Indeed.  I plan to keep it quite busy this Winter ...
Title: Re: M45 from Lydd - Work in Progress
Post by: MarkS on Oct 07, 2009, 22:52:15
Here's the final version:

(http://gallery.orpington-astronomy.org.uk/albums/userpics/10046/normal_m45_260909v2.jpg)

Using a proper dark frame got rid of the amp glow on the right hand side and reduced overall noise slightly.  

And here it is full size, without any scaling - the image can just about take being full size.
http://gallery.orpington-astronomy.org.uk/albums/userpics/10046/m45_260909v2.jpg

Look carefully and you might see one or two galaxies in the background.

It makes an interesting comparison to John/Noel partnership http://forum.orpington-astronomy.org.uk/index.php?topic=5173.0

Mine was completely processed in IRIS except that I used Photoshop Elements to remove some hot pixels and to apply noise reduction.

Mark
Title: Re: M45 from Lydd - Work in Progress
Post by: Fay on Oct 08, 2009, 17:19:59
It really is a nice image Mark. A change to see wide field & not cropped. I like it very much
Title: Re: M45 from Lydd - Work in Progress
Post by: JohnP on Oct 08, 2009, 19:04:16
I have to say it again Mark - it's superb & really well processed & all your own work unlike mine... :-( Star colours are great & you have really kept noise down. There is tons of detail & I love the faint fuzzies...

Tremendous - John
Title: Re: M45 from Lydd - Work in Progress
Post by: Mac on Oct 08, 2009, 19:17:15
very nice.
Title: Re: M45 from Lydd - Work in Progress
Post by: RobertM on Oct 08, 2009, 20:52:40
Looks wonderful Mark, it would make a great wall poster.
Title: Re: M45 from Lydd - Work in Progress
Post by: Daniel on Oct 08, 2009, 20:56:34
Fantastic image mark, would kill for those star colours and that fainter slightly brown nebulosity at the bottom is coming through really nice.

Daniel
:O)