M1 (Crab Nebula in Taurus)

(Click here or on image for larger version)

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)