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Supernova 1987A is the bright star at the ... found photographs showing the supernova brightening rapidly early on February 23. [4] [2] On March 4–12, 1987, ...
The light from the explosion was seen from Earth on Feb. 24, 1987, the day after a burst of neutrinos - subatomic particles produced in vast quantities when a large star's core collapses - spawned ...
Messier 87 (also known as Virgo A or NGC 4486, generally abbreviated to M87) is a supergiant elliptical galaxy in the constellation Virgo that contains several trillion stars.
Sanduleak -69 202 (Sk -69 202, also known as GSC 09162-00821) was a magnitude 12 blue supergiant star, located on the outskirts of the Tarantula Nebula in the Large Magellanic Cloud. It was the progenitor of supernova 1987A.
SN 1054 remnant (Crab Nebula)A supernova is an event in which a star destroys itself in an explosion which can briefly become as luminous as an entire galaxy.This list of supernovae of historical significance includes events that were observed prior to the development of photography, and individual events that have been the subject of a scientific paper that contributed to supernova theory.
The explosion was at least 100 times more luminous than any previously observed supernova, [58] [59] with the progenitor star being estimated 150 times more massive than the Sun. [60] Although this had some characteristics of a Type Ia supernova, Hydrogen was found in the spectrum. [61]
Objects may have been discovered without distance determination, and were found subsequently to be the most distant known at that time. However, object must have been named or described. An object like OJ 287 is ignored even though it was detected as early as 1891 using photographic plates, but ignored until the advent of radiotelescopes.
Artist's conception of a multitude of tiny diamonds next to a hot star. In 1987, a team of scientists examined some primitive meteorites and found grains of diamond about 2.5 nanometers in diameter (nanodiamonds). Trapped in them were noble gases whose isotopic signature indicated they came from outside the Solar System. Analyses of additional ...