NGC 7314

NGC 7314
NGC 7314 taken from Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationPiscis Austrinus
Right ascension22h 35m 46.19699s[1]
Declination−26° 03′ 01.5740″[1]
Redshift0.004743±0.000020[2]
Heliocentric radial velocity1,427 km/s[3]
Distance54.6 Mly (16.75 Mpc)[3]
Apparent magnitude (V)11.9[4]
Apparent magnitude (B)11.6[3]
Characteristics
TypeSAB(rs)bc[5]
Apparent size (V)4′.37 × 1′.86[6]
Other designations
NGC 7314[7], Arp 14[8], PGC 69253[6]
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NGC 7314 is a spiral galaxy located in the southern constellation of Piscis Austrinus. It was discovered by English astronomer John Herschel on July 29, 1834.[9] This is a nearby Seyfert (active) galaxy, located at a distance of approximately 54.6 megalight-years from the Milky Way.[3] Since it appears to have detached spiral arm segments (either from dust lanes or bright star clusters), it was listed in Halton Arp's Atlas of Peculiar Galaxies.[8]

Walter Scott Houston describes its appearance in small telescopes:[10]

Do not let its photographic magnitude of 11.6 scare you off, for it can be seen in a 6-inch telescope as a curiously fuzzy object. But it is small, appearing only 4' by 2'.

The morphological classification of this galaxy is SAB(rs)bc,[5] indicating a spiral galaxy with a weak central bar (SAB), an incomplete ring structure around the bar (rs), and moderately–wound arms (bc). The plane of the galactic disk is inclined by 64° to the line of sight from the Earth, with the major axis aligned along a position angle of 178°.[11] Within the galaxy's core is an active galactic nucleus tentatively classified as a type I Seyfert. The central supermassive black hole has a relatively low mass, estimated as (0.87±0.45)×106 M☉. The core is a source for X-ray emission that is seen to vary dramatically on time scales as low as hours.[5]

  1. ^ a b Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference vaucoulerus1991 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference Tully2016 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference ned was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Emmanoulopoulos2016 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Paturel2003 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Arp1966 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference cseligman was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference WSH was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference García-Gómez2002 was invoked but never defined (see the help page).