NGC 5371 | |
---|---|
Observation data ( J2000 epoch) | |
Constellation | Canes Venatici |
Right ascension | 13h 55m 39.9s [1] |
Declination | +40° 27′ 42.4″ [1] |
Redshift | 0.00850±0.00019 [2] |
Heliocentric radial velocity | 2,552±1 km/s [3] |
Distance | 129.5 ± 32.4 Mly (39.70 ± 9.92 Mpc) [4] |
Apparent magnitude (V) | 11.3 [5] |
Characteristics | |
Type | SAB(rs)bc [5] |
Mass | 1.86×1011 [4] (baryonic) M☉ |
Apparent size (V) | 4.4′ × 3.5′ [5] |
Other designations | |
NGC 5371 and 5390, UGC 8846, PGC 49514 [6] |
NGC 5371 is a face-on spiral galaxy in the northern constellation Canes Venatici. It was discovered on January 14, 1788 by German-British astronomer William Herschel. The nearby NGC 5390 appears to be a duplicate entry for NGC 5371, since there is nothing at the former's position. [7] NGC 5371 has an apparent magnitude of 11.3 and an angular size of 4.4′ × 3.5′. [5] It is located at a distance of 129.5 ± 32.4 million light-years (39.70 ± 9.92 Mpc) from the Milky Way, [4] and is receding with a heliocentric radial velocity of 2,552 km/s. The galaxy appears to be weakly interacting with the nearby, equidistant Hickson 68 group of galaxies, and thus may be a member. [3] Collectively, they are sometimes dubbed the Big Lick galaxy group, after the city of Roanoke, Virginia. [8]
The morphological classification of NGC 5371 in the De Vaucouleurs system is SAB(rs)bc, [5] indicating a weakly barred spiral galaxy (SAB) with a transitional inner ring structure (rs), and moderately wound spiral arms (bc). The galactic plane is inclined at an angle of 45°±5° to the plane of the sky, with the major axis oriented along a position angle of 195°±3°. [9] This is classified as a LINER-type galaxy and may be in a post- starburst phase. There is an extended or double source of X-ray emission. [10]
Two supernovae have been observed in NGC 5371. Type II-L supernova SN 1994Y was spotted on August 19, 1994, reaching peak B magnitude of 14.2 on August 30. [11] Type IIb supernova SN 2020bio was discovered January 29, 2020. The progenitor may have undergone extensive mass loss, shedding nearly all of its hydrogen envelope. [12]
NGC 5371 | |
---|---|
Observation data ( J2000 epoch) | |
Constellation | Canes Venatici |
Right ascension | 13h 55m 39.9s [1] |
Declination | +40° 27′ 42.4″ [1] |
Redshift | 0.00850±0.00019 [2] |
Heliocentric radial velocity | 2,552±1 km/s [3] |
Distance | 129.5 ± 32.4 Mly (39.70 ± 9.92 Mpc) [4] |
Apparent magnitude (V) | 11.3 [5] |
Characteristics | |
Type | SAB(rs)bc [5] |
Mass | 1.86×1011 [4] (baryonic) M☉ |
Apparent size (V) | 4.4′ × 3.5′ [5] |
Other designations | |
NGC 5371 and 5390, UGC 8846, PGC 49514 [6] |
NGC 5371 is a face-on spiral galaxy in the northern constellation Canes Venatici. It was discovered on January 14, 1788 by German-British astronomer William Herschel. The nearby NGC 5390 appears to be a duplicate entry for NGC 5371, since there is nothing at the former's position. [7] NGC 5371 has an apparent magnitude of 11.3 and an angular size of 4.4′ × 3.5′. [5] It is located at a distance of 129.5 ± 32.4 million light-years (39.70 ± 9.92 Mpc) from the Milky Way, [4] and is receding with a heliocentric radial velocity of 2,552 km/s. The galaxy appears to be weakly interacting with the nearby, equidistant Hickson 68 group of galaxies, and thus may be a member. [3] Collectively, they are sometimes dubbed the Big Lick galaxy group, after the city of Roanoke, Virginia. [8]
The morphological classification of NGC 5371 in the De Vaucouleurs system is SAB(rs)bc, [5] indicating a weakly barred spiral galaxy (SAB) with a transitional inner ring structure (rs), and moderately wound spiral arms (bc). The galactic plane is inclined at an angle of 45°±5° to the plane of the sky, with the major axis oriented along a position angle of 195°±3°. [9] This is classified as a LINER-type galaxy and may be in a post- starburst phase. There is an extended or double source of X-ray emission. [10]
Two supernovae have been observed in NGC 5371. Type II-L supernova SN 1994Y was spotted on August 19, 1994, reaching peak B magnitude of 14.2 on August 30. [11] Type IIb supernova SN 2020bio was discovered January 29, 2020. The progenitor may have undergone extensive mass loss, shedding nearly all of its hydrogen envelope. [12]