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From Wikipedia, the free encyclopedia

V378 Normae

A light curve for V378 Normae, plotted from Hipparcos data[1]
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Norma
Right ascension 16h 29m 45.2207s[2]
Declination −57° 45′ 22.767″[2]
Apparent magnitude (V) 6.21 - 6.23[3]
Characteristics
Spectral type G8Ib[4]
Variable type Cepheid[3]
Astrometry
Radial velocity (Rv)5.93±0.15[2] km/s
Proper motion (μ) RA: −1.666[2] mas/yr
Dec.: −2.559[2] mas/yr
Parallax (π)1.0264 ± 0.0349 mas[2]
Distance3,200 ± 100 ly
(970 ± 30 pc)
Absolute magnitude (MV)−0.078[5]
Details
Mass3.43[6] M
Radius115[7] R
Luminosity4,214[7] L
Surface gravity (log g)0.72[6] cgs
Temperature4,335[7] K
Metallicity [Fe/H]−0.25[6] dex
Other designations
V378 Normae, CD−57°6417, HD 148218, HIP 80788, HR 6120
Database references
SIMBADdata

V378 Normae (also known as HR 6120) is a very luminous supergiant type star in the constellation Norma.[8] It is a likely Cepheid variable with a range of 6.21 to 6.23 and a period of 3.5850 days.[3]

References

  1. ^ "Hipparcos Tools Interactive Data Access". Hipparcos. ESA. Retrieved 8 December 2021.
  2. ^ a b c d e f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. ^ a b c Watson, Christopher (4 January 2010). "V378 Normae". AAVSO Website. American Association of Variable Star Observers. Retrieved 12 April 2015.
  4. ^ "V378 Normae, HD148218, HIP80788". Universe Guide. Retrieved 12 February 2019.
  5. ^ Gontcharov, G. A. (2011). "The red giant branch in the Tycho-2 catalogue". Astronomy Letters. 37 (10): 707–717. arXiv:1607.00557. Bibcode:2011AstL...37..707G. doi:10.1134/S1063773711090040. S2CID 119272127.
  6. ^ a b c Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevic, G.; Monari, G.; Cantat-Gaudin, T. (2019-08-01). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy and Astrophysics. 628: A94. arXiv:1904.11302. Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. ISSN 0004-6361.
  7. ^ a b c Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  8. ^ "V378 Normae Star Distance, Colour, Size (Radius) and other Facts". universeguide.com. 2015-01-25. Retrieved 2023-11-03.


This page was last edited on 3 November 2023, at 01:38
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