NGC 2070 - Tarantula Nebula in UHC

[jsmoraes (Jorge)]

Another test with my new filter, UHC. The sensor temperature cause loose in quality. It was around 42 degrees Celsius.

Also, it seems that the UHC filter isn't liking my coma corrector, or vice versa. I am seeing more coma at right side of photo (left side of sensor).

Actually, I don't know if the temperature is the main issue of noise. I have similar problem with my H alfa filter.

GSO 305 mm - Canon T3 - 11 x 4 min (44 min) - ISO 800 - OAG - Filtro UHC - Coma corrector

The files of images have more than 200 kb. So, you must see them at:
http://jsmastronomy.30143.n7.nabble....d242.html#a379

Or with best view in full resolution mode at:
http://www.astrobin.com/156400/

[raymo]

If I anglicised your name I could say gorgeous George. Lovely.
raymo

[jsmoraes (Jorge)]

Thank you very much, Raymo.

As I did some frames with skyglow filter I tried to add the UHC result data over stacked skyglow. The mix result is:

http://www.astrobin.com/156720/

GSO 305 mm - Canon T3 - ISO 800 - OAG - Coma corrector

UHC - 11 x 4 min (44 min)
Skyglow - 8 x 4 mn (32 min)

Total: 1 h 16 min


The photos have big file size, sorry ! You can see the photos at:


http://astronomia-e-astrofotos.10697...13-wide-k9.jpg


http://astronomia-e-astrofotos.10697...-detail-k9.jpg

note: the skyglow frames have less noise than UHC, but unhappily I lost some ones because of bad focus. The sensor temperature was around 40 degrees Celsius.