Hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  Crab nebula  ·  M 1  ·  NGC 1952
M 1, 


            Tom Harrison
M 1
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M 1, 


            Tom Harrison
M 1
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Imaging Telescopes Or Lenses
RCOS 12.5" Truss
Imaging Cameras
Paramount ME
Astrodon Tru-Balance Generation 2
PIR · Off-Axis Guider Homeyer
Maxim DL
Guiding Telescopes Or Lenses
RCOS 12.5" Truss
Guiding Cameras

Acquisition details

Oct. 17, 2004
21x600" (3h 30')
3h 30'
Avg. Moon age:
3.67 days
Avg. Moon phase:

Basic astrometry details

Astrometry.net job: 98935

RA center: 05h34m33s.6

DEC center: +22°0021

Pixel scale: 0.409 arcsec/pixel

Orientation: -160.133 degrees

Field radius: 0.127 degrees

Resolution: 1800x1324

Locations: Asheville, None; North Carolina, None


DETAILS: Imaged at f9 with a 12.5" RC Optical Systems Truss Telescope mounted on a Paramount ME Robotic mount, using an ST-10XME SBIG camera and Tru-Balance filters. LRGB:110:30:30:40 minutes. Luminance is unbinned. RGB: 40:40:40 minutes binned 2. Aligned in RegiStar, and processed in MaxIm DL and Photoshop. Luminance acquired 92304, and RGB on 101704.

COMMENTARY: The Crab Nebula is a supernova remnant of glowing gases and plasma expanding from a cataclysmic explosion of a star fifteen times more massive than our own sun. This supernova explosion was observed and reported by Chinese astronomers in 1054 A.D. Being relatively close, 6,500 light-years, and so massive an explosion, it shone as bright as Venus in the daytime sky for 23 days. The Crab Nebula is located in the Constellation Taurus, and at its center is a rapidly-spinning, city-sized neutron star as massive as the sun. It is a spectacular object to image in color. High-speed winds and shock waves fill the turbulent inner region, as bright wisps expand at half the speed of light. The neutron star (pulsar) generates huge electrical voltages that accelerate matter and anti-matter particles outward along its equator, and create the shock waves.


Sky plot

Sky plot


M 1, 


            Tom Harrison