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M1


From Wikipedia
The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus. The nebula was first observed by John Bevis, and corresponds to a bright supernova recorded by Chinese and Arab astronomers in 1054. Located at a distance of about 6,500 light-years (2 kpc) from Earth, the nebula has a diameter of 11 ly (3.4 pc) and expands at a rate of about 1,500 kilometers per second.
At the center of the nebula lies the Crab Pulsar, a rotating neutron star, which emits pulses of radiation from gamma rays to radio waves with a spin rate of 30.2 times per second. The nebula was the first astronomical object identified with a historical supernova explosion.
The nebula acts as a source of radiation for studying celestial bodies that occult it. In the 1950s and 1960s, the Sun's corona was mapped from observations of the Crab's radio waves passing through it, and more recently, the thickness of the atmosphere of Saturn's moon Titan was measured as it blocked out X-rays from the nebula.
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M1_20110108JTt.jpg
Click on the thumbnail for a larger image

50 images at 2min, darks flats bias used 8\1\2011
Sky Watcher Mak-Newt 190 canon 40D ISO 800 PHD guiding with QHY5 EQ6 Pro mount
Filers used CLS and orion imaging filter
Image by Julian Tworek
Please note that all pictures are copyrighted and may not be used without the explicit permission of the owner


M1_KR1.jpg
Bagged By Keith Rickard
10" LX200 SBIG CCD Putlands Observatory
Please note that all pictures are copyrighted and may not be used without the explicit permission of the owner.

m1_aw01.jpg

Bagged by: Andrew Wilson
Method: LX200 8", MX916 CCD
Please note that all pictures are copyrighted and may not be used without the explicit permission of the owner.


m1_jt01.jpg


Bagged by: Julian Tworek
Method: LX200 10", MX716 CCD, F6.3, two lots of 6x120 seconds both averaged with each other

Please note that all pictures are copyrighted and may not be used without the explicit permission of the owner.


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CMHASD - M1