Trifid Luminence

[Paul Haese]

Testing of the GSO RC12 is finally underway. This is a stack of 5 frames at 10 minutes on the PME (which worked without a hitch). Guiding was quite wayward, but overall not a bad start.

Taken with an STL11000MC2 darks subtracted only.

Feel free to tell me what you think. Especially how to get tighter stars using an STL and a long focal length.

[jenchris]

oooh that's going well.
Will look smart with the colour on it

[Peter Ward]

Sorry Paul, just average for the FL and aperture.

It's not you....just a welcome to the world of "wanting better seeing" :)

An AOL will help, but ironically only if the seeing is good...and if the seeing is great...well....better still.

[Paul Haese]

Thanks guys.

Pete, the seeing was pretty good overall, but I think my guiding parameters were the main problem. Or do you think otherwise? Are you thinking it is seeing related? Could you shed some more light on this? I know you image at that focal length a lot so I am more than happy for you to tell me which settings work best.

[gregbradley]

Seems pretty usual for that focal length and not bad for a 12 inch and STL.

Guiding seems fine in the shot so when you say wayward it does not appear to have affected the stars much.

Greg.

[TheDecepticon]

Doesn't look too bad for guiding, but a larger, higher res picture always tells a different story. :question:

Great image size too.:)

[Paul Haese]

Thanks guys, lots to consider and review here. Perhaps it was seeing and I have some tips now to determine if I had it wrong.

[Peter.M]

I like it ! :thumbsup:

[allan gould]

Nice one Paul - I like

[Leonardo70]

Hi Paul,

very nice test .... guiding look good at the resolution you posted.
Have you used a flattner or the image is cropped ?

Answer to your question ... try to use an AO, for me.

All the best,
Leo

[Paul Haese]

No flattener and not cropped Leo. I will consider and AO for sure. Given your images I will consider this a lot more.

[Stevec35]

Looks pretty reasonable to me Paul

Cheers

Steve