Crab Nebula

The Crab Nebula (M1) is the remnant of the supernova observed in broad daylight by the Chinese in A.D. 1054. Located 6.5 thousand light-years away in the constellation Taurus, it displays bright filaments and a halo energized by its central pulsar, which rotates 30 times per second. Its colors reveal its gaseous composition: red corresponds to hydrogen emissions, green-blue to doubly ionized oxygen, and yellow to sulfur. With an apparent size of 6×4 arcminutes and magnitude 8.4, it is one of the most interesting and extensively studied celestial objects. The images were captured on the nights of December 10 and 11, 2025, using a ZWO Seestar S50 telescope, with a total exposure time of 5 hours (by stacking 1,800 photos of 10 seconds each) over two nights under Bortle scale levels 9 and 7 skies.

Zwo Seestar S50 Intelligent Telescope

Stacking of 1800 selected 10-second subframes and noise reduction (denoise) options were automatically performed.