Messier 1  -  Crab Nebula

100%  resolution (1.8MB)

150%  resolution (3.6MB)

200%  crop (0.4MB)

Object data of M1

Object type: Supernova Remnant (SNR)
Size: 8' x 4'
Magnitude: 8.4 mag
Constellation: Tau
Distance: 6,500 Ly
Notes: The Crab Nebula (Messier 1) is a supernova remnant in the constellation Taurus. This nebula was the first astronomical object identified with a historical supernova explosion. The supernova was recorded by Chinese astronomers in 1054.

The outer shells of the progenitor star were ejected and are still expanding with at a rate of about 1,500 kilometres per second nearly 1000 years after the explosion.

At the center of the nebula lies the Crab Pulsar, a neutron star 30 kilometres across with a spin rate of 30 times per second, which emits pulses of radiation from gamma rays to radio waves.

Exposure data

Date: 2017-10-14 until 2018-02-04 (6 nights)
Location: Nussbach / Austria (400m)
Telescope: 12" Newtonian telescope (f=1120mm)
Camera: QSI 660wsg-8 with Astrodon filters
Binning: L 1x1 / RGB 1x1
Mount: ASA DDM85
Exposure time: L 37x8min / R 14x8min / G 14x8min / B 14x8min
Exposure time total: 10h 32min
Notes: Only data with very good seeing were used.