Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: MarkS on Dec 13, 2015, 15:39:58

Title: Horsehead and Flame
Post by: MarkS on Dec 13, 2015, 15:39:58
I managed to get 2 hours of data on Tuesday night but sky conditions were not that good.  I ended up with too much blue haze around Alnilam (the middle star of Orion's belt).

Modified Sony A7S on Tak Epsilon 180ED. 240x30sec exposures.

(http://www.markshelley.co.uk/Astronomy/2015/horse20151208small.jpg)

Larger version here:
http://www.markshelley.co.uk/Astronomy/2015/horse20151208.jpg

On the left hand side in the top half I'm still suffering from that annoying horizontal colour banding problem.

Mark
Title: Re: Horsehead and Flame
Post by: JohnP on Dec 13, 2015, 15:52:06
for 2 hrs worth of 30 sec exposures that is unbelievable... So much of the brown dusty stuff... Really nice Mark - Well done,  John
Title: Re: Horsehead and Flame
Post by: Carole on Dec 13, 2015, 17:03:40
Fantastic Mark,

Carole
Title: Re: Horsehead and Flame
Post by: Fay on Dec 13, 2015, 19:35:19
Really nice Mark, what a lot to stack!

I cant see the banding


Fay
Title: Re: Horsehead and Flame
Post by: Ivor on Dec 14, 2015, 12:27:44
Lovely, did you do this in completely PI?
Title: Re: Horsehead and Flame
Post by: Mike on Dec 14, 2015, 19:43:02
Wow that is stunning.
Title: Re: Horsehead and Flame
Post by: Rocket Pooch on Dec 15, 2015, 20:57:54
Why are the stars not square?  Is the sensor large or have you done something?
Title: Re: Horsehead and Flame
Post by: MarkS on Dec 15, 2015, 22:39:34
Quote from: Rocket Pooch
Why are the stars not square?  Is the sensor large or have you done something?

It's a large sensor 36x24mm.  A lot of the stars are still looking square.

Mark
Title: Re: Horsehead and Flame
Post by: MarkS on Dec 16, 2015, 20:51:12
Have you seen today's APOD:  http://apod.nasa.gov/apod/ap151216.html

Maybe I should have sent them my one!

Mark
Title: Re: Horsehead and Flame
Post by: Fay on Dec 16, 2015, 21:01:37
Lots of haloes around the stars
Title: Re: Horsehead and Flame
Post by: The Thing on Dec 16, 2015, 21:04:42
Quote from: MarkS on Dec 16, 2015, 20:51:12
Have you seen today's APOD:  http://apod.nasa.gov/apod/ap151216.html

Maybe I should have sent them my one!

Mark
The APOD is a bit leery. Where's my sunglasses?
Title: Re: Horsehead and Flame
Post by: Fay on Dec 16, 2015, 22:06:55
now I see it on the desktop, very garish and extra haloey!
Title: Re: Horsehead and Flame
Post by: JohnP on Dec 17, 2015, 07:57:25
Mark - I keep telling you to submit your images to APOD - way better than a lot that are posted up..
Title: Re: Horsehead and Flame
Post by: RobertM on Dec 25, 2015, 14:23:34
That's really excellent Mark, I love all the dust to the east.

You should have had a few APODs by now !!

Robert