G1.9+0.3
Supernova remnant in the constellation of Sagittarius / From Wikipedia, the free encyclopedia
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G1.9+0.3 is a supernova remnant (SNR) in the constellation of Sagittarius. It is the youngest-known SNR in the Milky Way, resulting from an explosion the light from which would have reached Earth some time between 1890 and 1908.[1] The explosion was not seen from Earth as it was obscured by the dense gas and dust of the Galactic Center, where it occurred.[2] The remnant's young age was established by combining data from NASA's Chandra X-ray Observatory and the VLA radio observatory. It was a type Ia supernova.[2][3][4] The remnant has a radius of over 1.3 light-years.
Quick Facts Event type, Date ...
Event type | Supernova remnant |
---|---|
Date | 1985 |
Right ascension | 17h 48m 45.4s |
Declination | −27° 10′ 06″ |
Distance | 27,700 ly (8,500 pc) |
Other designations | NVSS J174846-270950, F3R 101, RFS 24, [SKM2002] 41, [SKM2002] G001.9+0.3, [ADP79] 001.873+0.323, MGPS J174846-270950 |
Preceded by | SN 1604 (observed), Cassiopeia A (unobserved, c. 1680) |
Followed by | SN 1885A |
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