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Date: | January 2008 |
Location: | Elizabeth, CO. ~6500 ft., Mag 5.5 skies |
Telescope: | 16" f/4.9 Newtonian, Pegasus Optics primary |
Mount: | Mathis Intsruments MI-500 |
Exposure: | 192 mins (3.2 hrs) ST-10XME luminance, 60 mins RGB ST-2000XCM |
Corrector: |
ST-10 = 2" 2x TV PowerMate, giving f/9.8. Larger image scale at f/9.8. Custom Scientific luminance filter in front of Lumicon Ha filter used on each sub. ST-10 AO-L guided at ~4 Hz XCM = 3" Keller/Wynne coma corrector used at f/4.9. Custom Scientific luminance filter used on each sub. XCM normally guided |
Seeing: | ~2" |
Comments: |
Twenty-four ST-10 subs, each 8 mins long, median combined in sets of three. Each median PC deconvolved, 50 iterates, in CCDStack. Deconvolved medians averaged in Maxim. Average DDPed/sharpened in CCDStack Previous image used as colorizing image: m1_2xpm.htm. Color image registered to Ha luminance in Registar. Final HaRGB assembled in Corel's PhotoPaint 12 using LAB |
Return to the Nebulae Images page or The Bell Observatory homepage or go to SEDS page (astronomical information on M1)