M1, The 'Crab Nebula' (NGC 1952)
It's one of the first objects I imaged, and spent a week learning from the web and trying to stack images and come to grips with LRGB processing.
Scroll down the page to see earlier images I've taken of this object,
including my very forst one.
Click on images below for full size version
I didnt go for the standard Hubble palette colour mapping for this. Instead, I mapped Ha to red, S2 to green and OIII to blue.
Images 2 & 3 are my latest images of the Crab.
Image 3 is a crop of the first image.
They use data from the third image, done between December 2007 & February 2008, and September 2009 for the core, combined with data obtained in September 2009 for the starfield.
This was registerd to match using Registar, and then combined in Photoshop.
The RGB starfield data was obtained at the same time as the Luminance data, using 2 telescopes and 2 cameras on the same mount.
Luminance was captured using a TMB 152 @ F8 and Starlight Xpress SXVF H16, and RGB was captured using a William Optics ZS80FD @ F6.9, and Atik 16HR.
This image was made up od data gathered in 3 sessions.
The first session was on December 10th 2007....16 x 4 minutes of Ha data
with the Atik 16HR @ F6.3 ON the 14 inch.
This image is the H-Alpha from December 2007, and was used as luminance in the image above.
This image is my first attempt at the Crab, and also my very first LRGB image.
Imaged with a Meade DSI pro and a 10 inch Meade LX200 Classic on an alt/az
mount in December 2006.