Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: JohnP on Dec 13, 2006, 10:32:48

Title: LRGB - The Crab Nebula
Post by: JohnP on Dec 13, 2006, 10:32:48
First time to image since DSC due to crappy weather. Anyway Monday night was good & scope/ guiding etc. seemed to be working well for a change. Decided to do LRGB on Crab Nebula to compare with my previous B&W best attempt 9 mths ago - Also inspired by Chris's recent success.

As usual used SC3 Toucam on MN56. L = 40 X 1min using CLS filter & R,G,B = 8 X 1min each. I should have done more RGB but I was getting 'bored...'

Anyway here it is - I've posted previous B&W effort for comparisson... The CLS filter is great & really helps to bring out some of the Ha twists etc.

As usual comments welcome.... :-)

Cheers,  John

(http://homepage.ntlworld.com/john.punnett/graphics/oas/m1final.jpg)

(http://homepage.ntlworld.com/john.punnett/graphics/oas/m1.jpg)
Title: LRGB - The Crab Nebula
Post by: Anonymous on Dec 15, 2006, 15:27:38
hi john how did you process it?
Title: LRGB - The Crab Nebula
Post by: Tony G on Dec 15, 2006, 19:01:59
Nice image John,
and how can you get bored actually imaging DSO's, rather that waiting for a larger object ie 'the Moon' etc.
Keep up the good work.

Tony G
Title: LRGB - The Crab Nebula
Post by: JohnP on Dec 15, 2006, 19:46:56
Thanks for the comment Tony... believe me it does get boring...

With regards to processing I basically followed through one of the excellent online tutorials from Don Waid on LRGB using Photoshop. You can view it here:

http://www.autostarsuite.net/DonWaid/lrgb/lrgb.html

Not sure who asked this question...

Anyway hope it helps - John