M1 - The Crab Nebula

Supernova Remnant in Taurus

Uploaded 12/14/2001

A deep 3 hour exposure was essential to record the fainter outer filaments expanding outward in this famous object. In addition, the Luminance channel was taken through the red filter, making this a RRGB image. An additional hour for color data was added as well. Near the center, the close horizontal double star contains the pulsar powering this unique object. Seeing was average, about 2.2 arcsec FMHW.

Processing: Calibration, flats and , L channel stacking in Maxim, RL deconvolution in AIP, Color stacking and combine to RGB in Maxim, and LRGB combine in Photoshop 6.

Instrument:  12.5" f/5 Home made Newtonian
Platform:  Astrophysics 1200 QMD
CCD Camera:  SBIG ST7E w/Enhanced Cooling
Exposure:  LRGB = 60:20:20:40 (RGB Binned 2x2)
Filters:  RGB Tricolor
Location:  Payson, Arizona
Elevation:  5150 ft.
Sky:  Seeing FMHW = 2.0 arcsec, Transparency 8/10
Outside Temperature:  15 C
CCD Temperature:  -25 C
Processing:  Maxim DL, Photoshop, AIP4WIN, PW Pro.




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