NGC 7814

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NGC 7814
N7814s.jpg
NGC 7814 by the Mount Lemmon Observatory
Observation data (J2000 epoch)
Constellation Pegasus
Right ascension 00h 03m 14.9s [1]
Declination +16° 08 44 [1]
Heliocentric radial velocity 1050 ± 4 km/s [1]
Distance 40.0 ± 2.6 Mly (12.2 ± 0.8 Mpc) [2]
Apparent magnitude  (V)11.6 [1]
Characteristics
Type SA(S)ab [1]
Apparent size  (V)5.5 × 2.3 [1]
Other designations
Caldwell 43, UGC 8, PGC 218 [1]

NGC 7814 (also known as UGC 8 or Caldwell 43) is a spiral galaxy about 40 million light-years away in the constellation Pegasus. The galaxy is seen edge-on from Earth. It is sometimes referred to as "the little sombrero", a miniature version of Messier 104. The star field behind NGC 7814 is known for its density of faint, remote galaxies as can be seen in the image here, in the same vein as the Hubble Deep Field.

Contents

It's among the few bright galaxies that exhibit modest distortion and twisting of the galaxy's plane in optical wavelengths. The light from the distant background galaxies becomes more red as it passes through NGC 7814's halo. This has been used to determine the amount of gas and dust in the halo. [3]

One supernova has been observed in NGC 7814: SN 2021rhu (Type Ia, mag 12.2). [4]

See also

Related Research Articles

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References

  1. 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for NGC 7814. Retrieved 2006-11-25.
  2. Jensen, Joseph B.; Tonry, John L.; Barris, Brian J.; Thompson, Rodger I.; et al. (February 2003). "Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations". Astrophysical Journal. 583 (2): 712–726. arXiv: astro-ph/0210129 . Bibcode:2003ApJ...583..712J. doi:10.1086/345430. S2CID   551714.
  3. https://noirlab.edu/public/images/noao-n7814block/
  4. Transient Name Server entry for SN 2021rhu. Retrieved 4 January 2023.