Help with processing an LRGB of Comet Lemon.

batema (Mark) · #1 19-01-2013, 03:54 AM

Hi,
I took 10 x 45 seconds of luminance with 10 x 20 seconds of RGB using a QHY-9 and am wondering if there is any way to process this data. I use Deep Sky Stacker and photoshop. It was taken using a William Optics 110 and I guided on the comet but was quite amazed at how much it moved after each shot. Is there a way to process this????
Thanks
Mark

Liz · #2 19-01-2013, 10:15 AM

Cant help you Mark as am the worlds worst processor, but you might get some good help in 'Beginners Astrophotography'.

Good luck, and look forward to seeing your results.

Octane (Humayun) · #3 19-01-2013, 11:00 AM

Combine one set of images registered on the stars. Combine a second set of images registered on the comet.

Take both images and blend the comet in from the set of images registered on the comet.

Great success!

H

batema (Mark) · #4 19-01-2013, 05:20 PM

Thank you H. You are a legend with the knowledge you have about and the help you give to people.

Mark

batema (Mark) · #5 19-01-2013, 08:40 PM

I have found that Deep Sky STacker does have a Comet function but I could not see the comet to stack on it. How do you use either DSS or Registax to stack on the comet only as I can not work it out. Also when I used the Comet function in DSS I ended up getting black artifacts on some of my stars.

Thanks

Mark

Octane (Humayun) · #6 19-01-2013, 09:22 PM

Hey mate,

I don't use DSS, but, in practise it should be all the same.

That's OK if you get black dots in the comet-registered image; you will be loading both the comet-registered image and the star-registered image in Photoshop, and then paint in just the comet from the comet-registered image layer.

You familiar with layer masks and painting?

H