Print Page - LRGB M27 complete

Title: LRGB M27 complete
Post by: Rocket Pooch on Sep 09, 2006, 20:59:56

M27, Image details: -

HA taken on the 15th & 18th August 1 hour each night with 30 minutes of darks
CLS taken on the 15th (27 minutes, 3 minute subs) & 18th (1 hour, 10 minute subs) August with 30 minute darks
O3 taken on the 3rd September 1 hour, 30 minute darks

Camera Starlight Express HX916 binned 1x1.

Guide cam Astronomiser ASTSC1BW, guiding at an average for the above images of .9 arc seconds per pixel.

Telescope, Vixen VC200L @ F6.3, giving 1,260 focal length and 1.47 arc seconds per pixel.

Image stacked in AIP4WIN and all HA, O3 & CLS frames aligned.

False RGB Image created in PhotoShop CS, using LRBG. L=CLS, R=Ha, BG=O3. Image gradients removed using PhotoShop Apply Image Gaussian Mask. Image cropped from 1300x1050 to approx 1100x900 to remove the filter rotation due to imaging over three nights.

Image resized down to 800x607 for display purposes.

(http://www.deep-sky-photography.com/Trash/M27-HaO3CLS-Version%204%20800%2020080908.jpg)

Title: LRGB M27 complete
Post by: Rick on Sep 10, 2006, 08:39:26

Cracking image, Chris!

Title: M27
Post by: Fay on Sep 11, 2006, 19:36:30

Chris,

Worth all the hard work, Chris.

Fay

Title: LRGB M27 complete
Post by: JohnP on Sep 12, 2006, 12:16:03

Chris,

An absolutely excellent image & well worth all the effort you've put into it. I'm not an expert but I have seen a lot of M27 images on all the various forums & webpages I check & this definitely ranks near the top even more so when you consider where it was taken from. It would be great if you could perhaps document on your webpage exactly how you got the final result... with perhaps a few images along the way. I want to try some long exposure RGB with the SC3 once I sort out my guiding & any pointers you could give would be very miuch appreciated.

Once again a great image & definitely ranks as one of the best by an OAS members.

cheers, John

Title: LRGB M27 complete
Post by: Tony G on Sep 12, 2006, 18:37:24

Hi Chris
I just compared your image with the M27's on google images and apart from the first 6 pages of images and the four images of saturn yours is pretty good. :wink:
But seriously, if you do compare the images with google apart from the APOD image yours is up there with the best of them, and if you were to get your own VLT, who knows.

keep up the good work.

Tony G

Title: LRGB M27 complete
Post by: Rocket Pooch on Sep 13, 2006, 17:38:19

Hi Tony,

Thanks for the kind words, I will publish the full size version soon, my favorite one I have ever seen from a so call amateur is this: -

http://www.astrophoto.com/M27.htm

Good ain't it.

Title: M27
Post by: Fay on Sep 14, 2006, 08:46:44

Chris,

that image of M27 via your link would make anyone cheesed off!! Amazing!

Fay

Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Rocket Pooch on Sep 09, 2006, 20:59:56