Exploding Star:NewDiscovery is the ClosestinYears!
A supernova has been discovered in a galaxy visible from the Northern hemisphere. In the Cigar Galaxy (also known as Messier 82) a Type Ia supernova has been found.
TOP: Before, BOTTOM: After
Positioned between Ursa Major and Ursa Minor, this supernova is located approx. 12 million light‐years away. Images from the supernova‐hunting robotic telescopes at the Lick Observatory in California confirm the object was not present as recently as 15th of January, meaning the supernova is still only a few days old.
A Type Ia supernova is used as a “standard candles” for measuring distances to other galaxies. This has significant possibilities for further studies of this type of supernova and its use to determine intergalactic distance calculations. This supernova has many differences compared to the last “bright” supernova (1987a).
First, it is visible in the Northern hemisphere. It fact, it is circumpolar as seen from Wichita. The 1987 supernova was only visible to people south of ~25°N latitude (approx. Hawaii). Second, this supernova in M82 was caused by hydrogen accumulating on the surface of a white dwarf star causing it to become violently unstable and explode. In contrast, 1987a was a Type II (a giant star that began to fuse iron at its core, causing a sudden implosion, followed by an outward rebound explosion ).
The supernova was first observed Tuesday (Jan. 21) at 7:20 p.m. local time (19:20 UTC) by a group of students led by Steve Fossey at the University College in London.
More of the story at: www.space.com/24369-supernova-star-explosion-amateur-photos.html