M31 - Andromeda Galaxy LHaRGB (reprocess)

[Paramount]

Hi
I wasn't totally happy with the combine of Ha with my LRGB image of this subject as the colour was a bit washed out and some of the detail especially in M110 was lost so I had a rethink and used a different method to combine the Ha in order to keep the original colour and detail. Also as a friend of mine suggested I combined some Ha with the blue channel so that the resulting Ha mix mimics the Hb as well as the Ha hence the magenta colouring of the star forming regions. It isn't so easy to see these regions on such a small image so I've provided a link to the full size image below
http://ic2.pbase.com/o9/29/869929/1/152441197.pSroUIse.M31LRGBfinalHab. jpg
Thanks for looking
Best wishes
Gordon

[LewisM]

Spectacular Gordon (and no diffration spikes :thumbsup: :D)

Making that my new desktop wallpaper!

[gregbradley]

I like the repro. Smoother processing, less pushed.

Greg.

[johnnyt123]

Gordon that is a fantastic pic.

What did you use to obtain this and what software did you use to stack the raw subs and then align the master subs?

John

[Spookyer]

Majestic!

[Nortilus]

this is just amazing...

[Regulus]

O...m..g..!!!

[Paramount]

Hi John
I am currently using a prototype imaging system collaboration between Tele Vue and FLI which consists of an NP127 with customised spacer tube with built in tilt adjustment and focusable wide field field flattener (no manual focuser), and Atlas focuser, centreline filter wheel and PL16803 camera, all of this is held together using the FLI zero tilt adapter system.
I use Maxim DL for all capture, Registar to register/align the raw frames, Maxim DL to stack into master frames, then photoshop CS5 to process
Best wishes
Gordon

[multiweb]

Like that one a lot better. You've brought up a lot more details than the previous rendition and it's easier on the eye. I also can see a lot of background galaxies in your shot. :thumbsup:

[Ric]

Lovely work Gordon

Very enjoyable to view.

[Ross G]

Great work Gordon.

The M31 photos are getting better and better!

Ross.

[johnnyt123]

Hi Gordon.

To setup sounds very technical and expensive....

Could you please post a raw Ha and luminance sub?

When I image the andromeda in Ha all I see is the core and no detail of the peripheral spiral arms.

What exposure times of each channel would you need to get something as beautiful as this??

Sorry to ask so many queationa Gordon. I am still very new to LRGB and NB imaging.

Thanks.
John

[Paramount]

Hi John
Give me a couple of days to sort out the sub frames as I am in a stretch of night shifts. I used 10 minute sub frames for all the filters including Lum and Ha. When imaging in Ha you will mainly see the starforming(Hydrogen emitting) regions and some of the dust lanes but you will see less of the spiral arms compared to Lum, this is because you are imaging for different parts of the galaxy in Ha compared to Lum.
Best wishes
Gordon

[stevous67]

Very nice effort indeed Gordon, I like this as one of the best versions I've seen.

Steve