California Nebula In Narrowband (HST) | Philip Baker

Photographer
Philip Baker
Email
starsman53@yahoo.com
Location of photo
Fredericksburg Texas
Date/Time of photo
10/6/7/8/2013 11:00p-5:30a
Equipment
Scope and Mount: Takahashi TOA-130N @ f7.7 + field flattner, NJP mount Camera: Starlite Xpress SXVR-H35 Filters: Baader 50.8mm hA 7nm, SII 8nm and 03 8.5 Filters Exposure data: 25 min X 10 exp each filter Guiding via: Takahashi FS-78 with Starlite Xpress Superstar autoguider
Description
The California Nebula (NGC1499) is an emission nebula located in the constellation Perseus. It is so named because it appears to resemble the outline of the State of California on long exposure photographs. It is almost 2.5° long on the sky , it is extremely difficult to observe visually. It's located about 1000 light years from earth. I spent three nights capturing the image, there's approximately 5 hours of hydrogen alpha data and 4 hours each of SII and 0III data respectively. Seeing was quite good all three nights. The image was colorized per HST, preliminary processing and calibration was done with Maxim DL and final processing and colorizing was done with Photoshop CS-6. Suggestions for improving the image are appreciated.
Website
http://www.philastrophotos.com