A night with Orion

[Fenriz]

Hi guys

A lovely clear night here last night, spoilt by mr blobby. Still had to make use of the clear skies.

My first target was NGC2024 and IC434 which was 30 x 120s @ ISO800, 10 x dark, 10 x flat, 10 x bias. Some serious gradient on there, even GradientXTerminator couldn't remove it.

Next up was NGC1977 & M42 which is finally in a position I can image it, so here it is 30 x 60s @ ISO800, 7 x dark, 10 x flat, 10 x bias

All comments and suggestions welcome....

[Demonperformer]

Not bad for the small amount of data, but both seem to suffer from a 'tiger stripe' pattern (more pronounced on the first one)? Is this on the original subs, or is it an artifact produced by the processing? Do you know what is causing it?

Would Mr Blobby, by any chance, be a streetlight?

[i've heard of people naming their scopes, but streetlights ... ?]

[Fenriz]

Thanks DP, I have no idea what is causing it. It's not obvious on the individual subs, possibly dodgy library flats.

And Mr Blobby refers to the Moon.

[Demonperformer]

And Mr Blobby refers to the Moon.

Ah, that makes sense.

[Zul]

Fantastic!

[Fenriz]

Been using some Photoshop tutorials on Youtube and got a copy of Noiseware Pro, and think I have made an improvement to my M42.

What do you think?

[soggybongo]

100% improvement mate, well done and another nice m42

[Quatermass]

:DMr Blobby lol that made me laugh never heard it called that before. Causes wash out a bit but who cares its good to be able to get out and do some imaging and flex the camera again.

[Anweniel]

Great captures especially getting the geegee with 2min exposures. I was wondering about the stripes too, I have no real idea mind but if you tilt your head abit to the right it reminds of those Ronchi signals the mirrror makers talk of I dont suppose there is an issue with your mirror/collimation?

[Fenriz]

Thanks for all the comments.

As far as I know I've collimated correctly, and have collimated the laser collimator as best I can, but that doesn't mean it could still be slightly out.