Dobsonian Astrophotography
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NGC 7635 H-alpha

Telescope:   Obsession

Mirror:         25" f/5 Galaxy Optics

Drive:           AZ/ALT, StellarCAT ServoCAT with DSC Argo Navis

Camera Equipment:   ST-10XME Class 2 CCD, CFW-8A (H-alpha filter), AO-7, Pyxis Field De-Rotator, TCF-S

Exposure: single 30 minutes

Processing:   CCDOPs, MaxIm DL 4.1, Photoshop 5.0

Location:   My backyard in Ridgecrest, CA (Mojave Desert), 2600 ft. elevation, population 30,000

Date:         7/31//05

Comments:  H-alpha (656.3/4.5 nm) 1.25 inch filter from Custom Scientific, Inc.