Astronomy:NGC 5940

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NGC 5940
Observation data (J2000 epoch)
ConstellationSerpens
Right ascension15h 31m 18.070s
Declination+07d 27m 27.91s
Redshift0.03405
Helio radial velocity10,209 km/s
Distance500 Mly (153.3 Mpc)
Apparent magnitude (V)15.56
Characteristics
TypeSeyfert galaxy
Size140,000 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.

References

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