| NGC 5940 | |
|---|---|
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| Observation data | |
| Constellation | Serpens |
| Redshift | 0.03405 0.00002 |
| Heliocentric radial velocity | 10,209 km/s |
| Distance | 500 Mly (153.3 Mpc) |
| Apparent magnitude (V) | 15.56 |
| Characteristics | |
| Type | Seyfert galaxy |
| Size | 140,000 ly |
| Other designations | |
| PGC 55295, IRAS F15288+0737, UGC 9876, LEDA 55295, MRK 1511, MRK 9030, MCG +01-39-025 | |
NGC 5940 is a barred spiral galaxy located in the Serpens constellation.[1][2][3] The galaxy was found on April 19, 1887, by Lewis Swift, an American astronomer.[2] NGC 5940 is located 500 million light-years away from the Milky Way and it is approximately 140,000 light-years across in diameter.[3][2]
NGC 5940 is a Seyfert type 1 galaxy and is considered a quasar according to the SIMBAD database.[4][5] It is registered under the Markarian Catalogue as Markarian 1511 or MRK 9030.[6] It has an bright active core, meaning there is a presence of an acceleration disc around its huge black hole. This in turn, emits strong radiation and ultraviolet rays that later get ejected into the depths of space.
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