SN 1923A is a star that erupted in a supernova in the M83 galaxy. It is located at a distance of about 4.1 megaparsec from us. Her flash was recorded by the American astronomer K. Lampland on May 9, 1923 . A supernova explosion was of type II, the initial mass of the star exceeded 18 solar masses [1] . Observations in 1998 showed that two weak sources of radio emission are present at the site of the explosion [2] . They are located at a distance of about 70 parsecs from each other and have a non-thermal nature. However, both of them are not a supernova remnant, but perhaps belong to an interstellar gas-dust cloud with dense accumulations of hydrogen.
| SN 1923A | |
|---|---|
| Observational data ( Age J2000.0) | |
| Supernova type | II |
| Galaxy | M83 |
| Constellation | Hydra |
| Right ascension | |
| Declination | |
| Galactic coordinates | 314.6217 +31.9808 |
| opening date | May 9, 1923 |
| Maximum Shine (V) | 14.0 |
| Distance | 14.7 million St. years old |
| physical characteristics | |
| Other designations | |
| DPD83 53, MCK2006 53, RK83 59 | |
In the galaxy M83 were recorded, in addition to this supernova, five more.
See also
- Galaxy M83
- SN 1945B
- SN 1950B
- SN 1957D
- SN 1968L
- SN 1983N
Notes
- ↑ Pennington, RL, Talbot, RJ, & Dufour, R. 1982, AJ, 87, 1538
- ↑ University of Chicago Press - Cookie absent