Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Carole on Feb 26, 2015, 15:33:42

Title: M42 HaRGB
Post by: Carole on Feb 26, 2015, 15:33:42
Wasn't going to post this until I had some more data, but as the night I had planned didn't behave as predicted this doesn't look likely now until next winter what with the Moon, my upcoming holiday and Orion getting far over in the west, so thought I'd post up what I have done.

It's 2011 since I imaged M42 and all I have done since then is improve my post-processing, so thought it was time for some new data, and I hadn't yet imaged it with a Mono camera.

Processing and capturing this was "fun" what with all the filters and having to take a short set for each.

Atik314L WOZS71 and FR x 0.8
NEQ6 Home observatory
All Baader filters
Ha 7 x 20mins + 10 x 40secs
Red 4 x 180secs + 3 x 15secs
Green 3 x 180secs + 3 x 15secs
Blue 3 x 180secs + 3 x 15secs

Colour seems a bit strange in places.

(http://cdn.astrobin.com/images/thumbs/586bbe33e00be323c828330d26815f53.1824x0_q100_watermark.jpg)
Title: Re: M42 HaRGB
Post by: Kenny on Feb 26, 2015, 22:16:24
That's awesome Carole.
Title: Re: M42 HaRGB
Post by: MarkS on Feb 26, 2015, 23:38:25
The Ha looks good Carole but the colouring has indeed gone very strange.

I guess you were shooting the colour from home.  It will be very difficult to get good gradient free and noise free colour from a light polluted area.
Title: Re: M42 HaRGB
Post by: Carole on Feb 27, 2015, 09:12:27
Thanks Kenny,

QuoteIt will be very difficult to get good gradient free and noise free colour from a light polluted area.
Yes, fighting a losing battle from Bromley, so annoying.

Carole
Title: Re: M42 HaRGB
Post by: Carole on Feb 27, 2015, 12:41:30
As a point of interest, I decided to combine the Ha data with my DSLR image from 2011.

This is the original DSLR image:
(http://cdn.astrobin.com/images/thumbs/9d6deddd00ca3dae20fc642be9779848.1824x0_q100_watermark.jpg)

and this is the result of combining that with my recent Ha.
I am thinking it would be better to leave RGB with filters to a dark site and stick to DSLR for RGB data from home.
(http://cdn.astrobin.com/images/thumbs/d3725fe3ce1751ef7fad56ddb4d01f77.1824x0_q100_watermark.jpg)

Carole