NGC 6040
NGC 6040 is a spiral galaxy located about 550 million light-years away in the constellation Hercules. NGC 6040 was discovered by astronomer Édouard Stephan on June 27, 1870. NGC 6040 is interacting with the lenticular galaxy PGC 56942. As a result of this interaction, NGC 6040's southern spiral arm has been warped in the direction toward PGC 56942. NGC 6040 and PGC 56942 are both members of the Hercules Cluster.
| NGC 6040 | |
|---|---|
Hubble image of NGC 6040 | |
| Observation data (J2000 epoch) | |
| Constellation | Hercules |
| Right ascension | 16h 04m 26.7s |
| Declination | 17° 45′ 01″ |
| Redshift | 0.042079 |
| Heliocentric radial velocity | 12615 km/s |
| Distance | 173 Mpc (564 Mly) |
| Group or cluster | Hercules Cluster |
| Apparent magnitude (V) | 15.07 |
| Characteristics | |
| Type | SAB(s)c |
| Mass | ~2.1×1011 M☉ |
| Size | ~356,300 ly (109.23 kpc) (estimated) |
| Apparent size (V) | 1.3 x 0.5 |
| Notable features | Forms an interacting pair with PGC 56942 |
| Other designations | |
| NGC 6040A, PGC 56932, UGC 10165, ARP 122 NED02, VV 212a | |
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