M31 revisited

[alan4908]

I completed a 4 panel M31 mosaic last year which was imaged with my SW 80 ED (see my album Deep Sky II). Whilst I was happy with the result, I was interested to see if I could enhance the core detail with additional subs from my new SW Esprit 150, which would give a higher resolution image. I decided that I would collect just new Lum data and then use a combination of RegiStar, PS and PI to overlay the new high resolution Lum data with the lower resolution data from the ED 80.  Since the FOV with Esprit is about 1/4 that of the SW 80 and the fact that I didn't fancy creating a 16 panel Lum mosaic, I decided to focus only on the core of M31.  I estimated that a 300s Lum exposure should be OK and this was confirmed by checking that the pixel level of the resultant image was below my cameras non-linear region.  The result represents about 55 hours total integration time.

M31 (SW ED 80 and Esprit 150)

M31  crop

Alan

The details of the subs are below:

ED 80
	1	2	3	4
L	16	16	18	12		600	s
R	19	12	15	13		600	s
G	16	18	9	10		600	s
B	18	19	13	16		600	s
H	5	8	6	6		1800	s
Esprit 150 (M31 core)
L					27	300	s

 

[James]

That is rather nice!!!

[alan4908]

4 hours ago, James said:

That is rather nice!!!

Thanks James 

Alan

[StargeezerTim]

Thats a stunning Andromeda...

[alan4908]

2 hours ago, StargeezerTim said:

Thats a stunning Andromeda...

Thanks for the comment Tim - I'm still recovering from collecting all the ED 80 data and that was done in 2016 ! 

Alan