Rosette Neb guided in Siderial

[leon]

Hi guys the other night i thought i might try my skills on the Rosette Neb, but it was obvious that my skills need honing, so to speak.

Anyway, i forgot to put the G11 in Photo Mode and did 5 images at 6 minutes each in normal tracking mode

However, it seemed to do pretty well, and the end result is an un-cropped wide field of the Rosette Neb.

5 exposures at 6 minutes at 500 ISO, through the Tak, and Canon 5D on G11, processed in Image Plus, with flats, and ICNR, levels and curves in PS2.

Please comment either way, I can handle it

Leon

[Zuts]

I think it looks fine Leon. The stars look very nice as well. One thing that i found is that the more data the better the image. I reckon if you added some more data you would be even more pleased with the result

Paul

[EzyStyles (Eric)]

hi leon, nothing is wrong with that pic at all. you captured quite alot of h-alpha from an unmodded cam!. no clipping either well done.

[leon]

Thanks Paul, and Eric, yep i agree a few more frames would have helped, but i ran out of time, anyway I'm pretty happy for a first go at this one.

You see it is all Eric's fault, I had never heard of the Rosette Nebula until he showed his master piece and thought, i must have a try at this one

Leon

[Tamtarn]

That's great Leon. Hope you re visit this one and do lots more exposures. Everything looks good. Guiding, focus ,detail, colour and processing.

Let's see more of this one from you

[leon]

Dave, Barb, Thanks for the comments, yes i do intend to spend a bit more time on the Rosette Nebula, when the Moon Racks off and the nights are good.

Leon

[Ric]

Hi Leon, your image looks great everything is nice and sharp and the colours look very natural as well. As you have mentioned a bit more data will definitely help in bringing out the finer details.

What is the difference between the photo mode and tracking mode that you mentioned?

Cheers

[leon]

Ric when you are just doing visuals and stuff like that the mount is in siderial mode and that is fine for that sort of viewing, as the object will stay in the FOV for ever if you are polar aligned.

However if i want to do some imaging with auto guiding in PHD,it is best to put the mount into photo mode, which gives you better tracking conditions for imaging.

In normal tracking mode PHD would be chasing the guide star all over the place unless you are pretty well spot on with alignment, and it is quite possible to lose it altogether.

I forgot to do this and left the mount in normal tracking mode, fired up PHD and started guiding in this mode instead of Photo Mode, however it ended up guiding pretty well, so i expect my alignment is nearly close to correct.

Anyway it didn't seem to effect the imaging run to much.

Leon

[Garyh]

Not bad Leon,
that is a very nice result for 30min of this.
Its not a real easy target especially for a unmodded camera.
Well done!

[Ric]

Thanks Leon

Thats very interesting.

Cheers

[leon]

Thanks Gary, next time when i get the chance i will go a bit longer and see how that will improve the shot, and put the mount in the proper mode might help as well.

Leon