HR 178

HD 3883
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 00h 41m 36.043s[1]
Declination +24° 37′ 44.43″[1]
Apparent magnitude (V) 6.061
Characteristics
Spectral type A7m
B−V color index 0.27
Variable type suspected
Astrometry
Radial velocity (Rv)-14.6 km/s
Proper motion (μ) RA: 104.84 ± 0.36[1] mas/yr
Dec.: -22.78 ± 0.24[1] mas/yr
Parallax (π)7.89 ± 0.40[1] mas
Distance410 ± 20 ly
(127 ± 6 pc)
Absolute magnitude (MV)6.326
Other designations
HIP 3269, HD 3883, BD+23° 94, SAO 74200.
Database references
SIMBADdata

HR 178 is a star in the constellation Andromeda. Located approximately 127 parsecs (410 ly) distant,[2] the star is an evolved Am star[3] with a combined apparent magnitude of 6.06, meaning that it can only be seen with the naked eye on dark, clear nights. The star is suspected of variability, possibly varying between magnitudes 6.04 and 6.06.[4]

References

  1. 1 2 3 4 5 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. ↑ "HR 178". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 15 June 2014.
  3. ↑ Burkhart, C.; Coupry, M. F.; Faraggiana, R.; Gerbaldi, M. (2005). "The field Am and ? Puppis-like stars: Lithium and heavier elements". Astronomy and Astrophysics. 429 (3): 1043. Bibcode:2005A&A...429.1043B. doi:10.1051/0004-6361:20040467.
  4. ↑ VSX (18 January 2010). "NSV 258". AAVSO Website. American Association of Variable Star Observers. Retrieved 15 June 2013.


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