M15 24th October

[AndyM]

Here's a quick attempt at M15.

I started the night intending to image NGC 7331 but nothing seemed to go too well - focus was out, tracking all wrong etc etc so I switched to M15 and had a bit more luck.

I was quite pleased how the granularity of the cluster showed up - I usually manage to burn out the core on these.

(click to enlarge)

20 frames of 90 seconds, 15 each of darks, flats and bias frames (first time I've used flats and bias) all stacked with DSS then processed in Paintshop.

Canon 350d @ ISO 800 with a 2x teleconverter on the 8" Skywatcher Newt.

Andy.

[thing]

Looks nice Andy, you have a little bit of trailing there which is detracting from what would have been a really sharp shot. Core certainly looks good to me. Nice bit of colour too.

[legion48]

Great image Andy. The bright star on the right with the diffraction spikes really sets it off.

[LostNSpace]

Good image Andy

Mark

[RichieJarvis]

Lovely! I find Globulars very hard. You've captured that nicely

[AndyM]

Thanks for the comments folks.

thing - I agree about the trailing, just couldn't seem to nail a good polar alignment last night for some reason, the images of NGC 7331 I took were much worse than this. :oops:

Andy.

[Psychobilly]

Hi Andy,

Like the Image and the Diffraction spikes on the top left star certainly add to it

Have you checked the subs before stacking it might just be the odd rogue one in there. It's usually better to lose some exposure time by culling any dodgy subs than have them left in.

Billy..

[AndyM]

You may be right Billy. I'm going to check the subs again tonight and be a bit more ruthless (theres got to be ONE good one in there somewhere )

Andy.

[AndyM]

Just had a second bash at this, cut out 3 or 4 offending subs. Its still not perfect but hopefully a bit better.

(click to enlarge)

[russ]

that's a great photo Andy

[MikeD]

Nicely resolved glob, congrats.

mike.

[thing]

Loads better Andy, good looking glob.