NGC1999 - a gem next to M42

[Mark72]

Hi,

This nebula is just next to Orion nebula but it seldom imaged on its own.

Colour was borrowed from Hyperstar f/2, Ha and Luminance added at f/8.

http://www.astrobin.com/25187/B/

Thanks for looking!

Mark

[Gina]

Very nice indeed

[stellawolf]

Great image well done

[Letchy]

Very nice.

[Mark72]

Thanks!

Mark

[sologuitarist61]

Excellent

[Mark72]

Thanks Richard!

Mark

[Gina]

Whereabouts is this compared with M42?

[Mark72]

Gina,

It's just down the M42.

Mark

[Gina]

How far from Oxford?

[Mark72]

How far from Oxford?

A few thousand light miles;)

Mark

[andyo]

Great image well done Mark

[Mark72]

Thanks Andy,

Mark

[Uranium235]

Interesting, not sure if ive seen this one before. Nice capture.

Did you use 2x2 binning for this? I would have thought using 1x1 would be rather inefficient at this focal length (oversampling).

[Mark72]

Thanks!

I do not use binning. All 1x1

Mark

[Uranium235]

Hmmm, and your focal length from the 10" RC is about 2000mm? GIven your chip pixel size (5.4 microns), it means youre imaging at 0.56" /pixel which seems rather low (I was under the impression that anything below 1.00" is a bit of a no-no).

Maybe you should try binning? Yes it would cut your frame size by half but you would not lose any detail and your exposure times could be but by half (or you could go deeper).

[Mark72]

Thanks for your suggestion.

Well, there is no consensus really whether you should bin at all.

Some high-end images do not do this. As for the resolution I was told there are quite dark skies in Arizona;)

Not sure how more details you need from this:

http://www.astrobin.com/24264/0/

Mark

[Uranium235]

Thats a nice M31, maybe you should run a test to see if there is any noticeable quality difference between 1x1 and 2x2. Anything that speeds up the capture process at minimum cost can only be a good thing? Or it could be that youre a whole lot more patient than I am