Another Hamburger

[Paul K]

Hi all, had a go at NGC 5128 last night...reasonably happy with the result....but when I processed in maxim, and I noticed a sort of diagonal dotted line in numerous places in the image....just wondering what may cause this...still struggling somewhere along this steep learning curve...but it is a lot of fun..:)
Paul

[desler]

Not sure about the diagonal line, but have a look at your histogram!
On my monitor the glow of the galaxy is a bit green.

Other than that a fine image!

Darren

[AlexN]

Firstly, it looks great!

The little dotted lines you were talking about, can you provide a crop of one of these lines at full size?

I think, from what you described, that its probably cold pixels from the sensor. What camera are you using? I used to get them a lot with my QHY8, but a bad pixel map fixes them up no worries.

[Paul K]

Thanks Darren, Alex, I'm using a QHY8...on a 12" Black Diamond reflector ....and I used about 15 exposures with varying times for a total around 40minutes....I have attached that crop for you Alex....you are probably correct in what you say about the pixels..

Paul

[multiweb]

Very nice details Paul. :thumbsup: Yeah these are trailing hot pixels. You can easily get rid of those with data rejection algorithms during the stacking process.

[Lester]

Nice image Paul.

[Paul K]

Thanks Marc, Lester....I'll have to look into this data rejection algorithm...would it be in the form of a plug-in for Maxim??