Stephan's Quintet

[orionoffelt]

I was hoping to get more data on this target but the weather has not been helpful so I thought I would post it as an on going project maybe get more data next year Luminance taken over two night 29-09-16 and 02-10-16 15 x 15 minutes and 1 x 20 minute sub un binned and some old RGB of 12 x 10 minutes from 2012 scope Celestron 280 mm at F10 cameras QHY8 Pro and QHY9m.

 

Bob

[alacant]

Hi. Nice image. Certainly beats my attempt.  1200mm f8 is the closest I can get but I'm keen to learn your method of reusing frames from previous sessions. ATM I record the centre of the frame and solve to it the next night. It's never perfect. I always lose a bit around the edges. Weather not helping here either, the whole thing is covered in dew as the temperature drops. Any ideas most gratefully received. 

[orionoffelt]

Thanks for the comments my method for re aligning the camera up from night to night is that I have a line laser set up with the camera body and the telescope and once this is done and I frame the object I have an image from the other session and line it up by eye as best I can I do loss some also from the outside but it does not add up to much overall. I also have a lot of dew after a long session but the dew shield and heater strips keep it from the imaging train.

 

Bob