Optics: Takahashi FS-102 @ f8 adapter: none
Date: 1/3/2006 Time: 08:39:50 UTC
Exposure: RGB = 2 x 300 seconds each exposure), Luminance = 2 x 300 seconds
Resolution: each quadrant = 1600x1200, combined = 3055x2265 reduced to 1132x1512, 566x756 this page.
Guiding: SBIG ST-2000xm (TC237 guider)
Acquisition: SBIG ST-2000XM camera and CFW8-A (Custom Scientific) filter wheel
Software: SBIG CCDOPS ver 5.40 build 6NT
notes: Autodark added to each image, DDP'd. Images added and combined in CCDSoft 5.00.154
Each quadrant is made of about 2 300 second images dark subtracted and Added. This makes each quad a 10 minute image. CCDOps performed image capture, dark subtraction, minor sharpening and some Digital Development Processing (DDP). PaintShop Pro v6.02 helped in combining the mosaic and adjusting levels.
This is my third mosaic attempt of m31. It takes a lot of adjustment and patience. I figure this is about as good as I am going to get it.
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© , 2006
Last edited:November 22, 2007 by Don Lewis, Wye Mountain Observatory
© , 2006