| NGC 5322 | |
|---|---|
 NGC 5322 byHubble Space Telescope | |
| Observation data (J2000epoch) | |
| Constellation | Ursa Major |
| Right ascension | 13h 49m 15.3s[1] |
| Declination | +60° 11′ 26″[1] |
| Redshift | 0.005937±0.000017[1] |
| Heliocentric radial velocity | 1,780 ± 5km/s[1] |
| Distance | 79 ± 22Mly (24.3 ± 6.9Mpc)[1] |
| Apparent magnitude (V) | 10.1 |
| Characteristics | |
| Type | E3-4[1] |
| Apparent size (V) | 5.9′ × 3.9′[1] |
| Notable features | LINER |
| Other designations | |
| UGC 8745, CGCG 295-017,MCG +10-20-035,PGC 49044[1] | |
NGC 5322 is anelliptical galaxy located in the constellationUrsa Major. It is located at a distance of circa 80 millionlight years from Earth, which, given its apparent dimensions, means that NGC 5322 is about 140,000 light years across.[1] It was discovered byWilliam Herschel on March 19, 1790.[2]
The galaxy has been found to possess an inner stellar disc and an edge-on nuclear dust disc across the centre, aligned along the major-axis of the galaxy. The stellar disk counter-rotates the galaxy with respect to the spheroid and is believed to be theremnant of a gas-rich satellite. The spheroid has a boxy shape. The galaxy also has an outer halo. In the centre of the galaxy is predicted to lie asupermassive black hole with mass 108.51±0.40 (129–813 million)M☉.[3] Observed inradio waves, NGC 5322 is a weaksource and features two symmetric jets emanating from the galactic core[4] and having a linear length of 1.6 kpc. The two jets are nearly perpendicular to the major axis of the galaxy and the circumnuclear dust disk. NGC 5322 is thought to contain a low-luminosityactive galactic nucleus (AGN), powered by the accretion of gaseous material. The AGN then creates the radio jets.[3]
NGC 5322 is the foremost galaxy in the NGC 5322galaxy group, which also includes the galaxiesNGC 5372,NGC 5379, andNGC 5389. Further away lie the galaxiesNGC 5109,NGC 5205,NGC 5308,NGC 5342,NGC 5376,NGC 5422,NGC 5443,NGC 5475,NGC 5473,NGC 5484,NGC 5485,NGC 5526,NGC 5631,NGC 5667,NGC 5687, andNGC 5678.[5]
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Media related toNGC 5322 at Wikimedia Commons