NGC 5371

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]

NGC 5371 (left) and Hickson 68 (right)

NGC 5371
NGC 5371 imaged by a 24 inch telescope
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]

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]

References

1. Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
2. Abazajian, Kevork N.; et al. (2009). "The Seventh Data Release of the Sloan Digital Sky Survey". The Astrophysical Journal Supplement Series. 182 (2): 543–558. arXiv:0812.0649. Bibcode:2009ApJS..182..543A. doi:10.1088/0067-0049/182/2/543. S2CID 14376651.
3. van Driel, W.; et al. (November 2016). "NIBLES: an H I census of stellar mass selected SDSS galaxies. I. The Nançay H I survey". Astronomy & Astrophysics. 595: 43. arXiv:1607.02787. Bibcode:2016A&A...595A.118V. doi:10.1051/0004-6361/201528048. S2CID 118623916. A118.
4. Lelli, Federico; et al. (January 2016). "The Small Scatter of the Baryonic Tully-Fisher Relation". The Astrophysical Journal Letters. 816 (1). id. L14. arXiv:1512.04543. Bibcode:2016ApJ...816L..14L. doi:10.3847/2041-8205/816/1/L14.
5. König, Michael; Binnewies, Stefan (2017). The Cambridge Photographic Atlas of Galaxies. Cambridge University Press. p. 113. ISBN 9781108103091.
6. "NGC 5371", SIMBAD, Centre de données astronomiques de Strasbourg, retrieved 2024-04-12.
7. Seligman, Courney. "NGC Objects: NGC 5350 - 5399". Celestial Atlas. Retrieved 2024-04-12.
8. Brazell, Owen. "April 2014 - Galaxy of the Month: Hickson 68 in Canes Venatici". Webb Deep SKy Society. Retrieved 2024-04-12.
9. Fridman, A. M.; et al. (January 2005). "The orientation parameters and rotation curves of 15 spiral galaxies". Astronomy and Astrophysics. 430: 67–81. arXiv:astro-ph/0409622. Bibcode:2005A&A...430...67F. doi:10.1051/0004-6361:200400087.
10. Komossa, Stefanie; et al. (September 1999). "X-ray properties of LINERs". Astronomy and Astrophysics. 349: 88–96. arXiv:astro-ph/9907119. Bibcode:1999A&A...349...88K.
11. Tsvetkov, D. Yu.; Pavlyuk, N. N. (January 1997). "Observations of the supernovae SN 1994Y, 1994ae, and 1995J". Astronomy Letters. 23 (1): 26–29. Bibcode:1997AstL...23...26T.
12. Pellegrino, C.; et al. (September 2023). "SN 2020bio: A Double-peaked, H-poor Type IIb Supernova with Evidence of Circumstellar Interaction". The Astrophysical Journal. 954 (1). id. 35. arXiv:2301.04662. Bibcode:2023ApJ...954...35P. doi:10.3847/1538-4357/ace595.

External links

• Media related to NGC 5371 at Wikimedia Commons
• NGC 5371 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images