| NGC 3259 | |
|---|---|
 NGC 3259 is a bright barred spiral galaxy located approximately 110 million light-years from Earth. | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 10h 32m 34.816s [1] |
| Declination | +65° 02′ 27.79″ [1] |
| Heliocentric radial velocity | +1,677 [2] km/s |
| Distance | 89.7 Mly (27.5 Mpc) [2] |
| Characteristics | |
| Type | SAB(rs)bc [3] |
| Mass | 1.26 × 1010 [2] M☉ |
| Other designations | |
| UGC 5717, PGC 31145 | |
NGC 3259 is a barred spiral galaxy located approximately 90 [2] million light-years from Earth, in the Ursa Major constellation. It has the morphological classification SAB(rs)bc, [3] which indicates that it is a spiral galaxy with a weak bar across the nucleus (SAB), an incomplete inner ring structure circling the bar (rs), and moderate to loosely wound spiral arms (bc). [4] This galaxy is a known source of X-ray emission and it has an active galactic nucleus of the Seyfert 2 type. [2]
NGC 3259 has a central black hole with a mass between 17,000 and 41,000 times that of the Sun, which is low for a supermassive black hole; this makes it a lesser-mass supermassive black hole (LSMBH). [5]
