
NGC 7635 Bubble Nebula Cassiopeia
Date: 10/19/2007
Location: Tierra Del Sol, California
Conditions: 40% moon, seeing 6/10, transparency 6/10, temperature 55-65F, very dry night, wind 5-15mph.
Telescope: TV85, 600mm, F7, 2" extension, no diagonal
Mount: Losmandy G11, Gemini goto, polar scope used to align.
Guiding: Celestron C8, .63 focal reducer, prime focus, no diagonal., camera The Images Source 24AF04.AS, PHD software
Camera: Canon 300D prime focus
Focusing: focused on star using 2.5 right Canon magnifier.
Exposures: (9) 4 min RAW, 800 ISO, 6 darks, 6 bias, 0 flats
Processing: IP2.82 converted & calibrated raw to FITS, align-rotate, combine median, PS CS , rotated, cropped, white balance, black point, sky neutralized, curves, hue-saturation, adjustment show/highlight, SMI routine, reduced size for web.
Comments: Tracking is good on this shot. I need to do this shoot again using the C8 without focal reducer. The TV85 did not have enough magnification. I cropped severely.