Event type | Supernova remnant |
---|---|
S | |
Date | 1971 |
Constellation | Puppis |
Right ascension | 08h 24m 07s |
Declination | -42° 59' 48 |
Epoch | J2000 |
Galactic coordinates | l = 260.2°, b = -3.7° |
Distance | 7,000 ly |
Host | Milky Way |
Progenitor | Unknown |
Progenitor type | Unknown |
Colour (B-V) | Unknown |
Notable features | central source: RX J0822-4300. Apparent size: 1° |
Other designations | SNR G260.4-03.4, MRC 0821-428, 3FHL J0822.1-4253e, 2U 0821-42, 3A 0821-427, 3U 0821-42, 4U 0821-42, AJG 6, INTREF 352, MSH 08-4-04, PKS 0822-42, PKS 0822-428, PKS J0824-4259, 2FGL J0823.0-4246, 3FGL J0822.6-4250e, 2FHL J0822.6-4250e |
Related media on Commons | |
Puppis A (Pup A) is a supernova remnant (SNR) about 100 light-years in diameter and roughly 6500–7000 light-years distant.[1] Its apparent angular diameter is about 1 degree.[2] The light of the supernova explosion reached Earth approximately 3700 years ago. Although it overlaps the Vela Supernova Remnant, it is four times more distant.
A hypervelocity neutron star known as the Cosmic Cannonball has been found in this SNR.
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: CS1 maint: DOI inactive as of November 2024 (link)