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  . Observations in 1998 showed that two weak sources of radio emission are present at the site of the explosion  . 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.
( Age J2000.0)
|Galactic coordinates||314.6217 +31.9808|
|opening date||May 9, 1923|
|Maximum Shine (V)||14.0|
|Distance||14.7 million St. years old|
|DPD83 53, MCK2006 53, RK83 59|
In the galaxy M83 were recorded, in addition to this supernova, five more.
- Galaxy M83
- SN 1945B
- SN 1950B
- SN 1957D
- SN 1968L
- SN 1983N
- Pennington, RL, Talbot, RJ, & Dufour, R. 1982, AJ, 87, 1538
- University of Chicago Press - Cookie absent