Caldwell Objects
I recommend a book entitled 'The Caldwell Objects' by Stephen James O'Meara, 2002
Note: This gallery should be automatically sorted by Caldwell #.
C77 NGC5128 Centaurus A Galaxy - 04/04/2013 (Processed single test image)
Imaged at Perth Observatory using their remote access equipment.
Early experimenting with a CCD camera. Single shot monochrome with (this) and without (see other image) calibration applied.
Overexposed and CCD Blooming present.
1 x LIGHT 60sec at -5C saved from FITSLiberator and processed using Adobe Photoshop CC 2019.
Bias Subtraction (Bias 1, 2184 x 1472, Bin1 x 1, Temp -5C, Exp Time 0ms)
Dark Subtraction (Dark 9, 2184 x 1472, Bin1 x 1, Temp -5C, Exp Time 60s)
Flat Field (Flat Open 1, Open, 2184 x 1472, Bin1 x 1, Temp -5C, Exp Time 300ms)
Telescope - Celestron 14" f/11 with Optec ~0.5x Focal Reducer to f/5.4 F=1914mm, SBIG Filter Wheel with Open, B, V, R, IR, SPEC100, Ha and OIII filters, SBIG ST-10 CCD camera 2184x1472 6.8µ pixels with field 26' x 17' , Optec TCF-S Temperature Compensating Focuser with FocusMAX autofocus software, CCD at -5C. Maxim DL for Image acquisition. Mount - Paramount ME. Boltwood Cloud Sensor II. TheSky planetarium software.
CaldwellC77 Centaurus A GalaxyGalaxyNGCNGC5128 C77 Centaurus A Galaxy
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