NGC 5371

NGC 5371
NGC 5371 imaged by a 24 inch telescope
Observation data (J2000 epoch)
ConstellationCanes Venatici
Right ascension13h 55m 39.9s[1]
Declination+40° 27′ 42.4″[1]
Redshift0.00850±0.00019[2]
Heliocentric radial velocity2,552±1 km/s[3]
Distance129.5 ± 32.4 Mly (39.70 ± 9.92 Mpc)[4]
Apparent magnitude (V)11.3[5]
Characteristics
TypeSAB(rs)bc[5]
Mass1.86×1011[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]

NGC 5371 (left) and Hickson 68 (right)

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]

  1. ^ a b Cite error: The named reference edr3 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Abazajian_et_al_2009 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference van_Driel_et_al_2061 was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference Lelli_et_al_2016 was invoked but never defined (see the help page).
  5. ^ a b c d e Cite error: The named reference König_Binnewies_2017 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference CSeligman was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Webb_2014 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Fridman_et_al_2005 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Komossa_et_al_1999 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Tsvetkov_Pavlyuk_1997 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Pellegrino_et_al_2023 was invoked but never defined (see the help page).