The name is formed from SN (yes SuperNova), the year of discovery, then followed by a one or two letter designation. SN is optional.
The first 26 of the year get designated with an upper case letter from A to Z. then, pairs of lowercase letters are used, starting with aa, ab.... etcetera Historical supernovae were known simply by the year they occurred: SN185, SN1572 SN1604. Since 1885, the letter notation was used.
Supernovae were discovered in 1054 when Chinese astronomers discovered a supernovae so bright it could be seen during the day
That is the year it occured.
It's Called A Supernova
It was first observed on February 23, 1987.
An interstellar cloud.
SuperNova
Nebula. Some nebulae are formed as the result of supernova explosions. The material thrown off from the supernova explosion is ionized by the supernova remnant. One of the best examples of this is the Crab Nebula, in Taurus. It is the result of a recorded supernova, SN 1054, in the year 1054 and at the centre of the nebula is a neutron star, created during the explosion.
It's Called A Supernova
large magellanic cloud.
It was first observed on February 23, 1987.
SuperNova
Its called a Supernova.
It didn't. It occurred approximately 168,000 years before 1987.
SN1987A was a supernova in the outskirts of the Tarantula Nebula. It could be seen with the naked eye from the Southern Hemisphere in 1987.
A nova or a supernova
a super novaA supernova.
That's called a supernova.
An interstellar cloud.
Nokia7210 supernova