V378 Normae

Last updated
V378 Normae
V378NorLightCurve.png
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]
Distance 3,200 ± 100  ly
(970 ± 30  pc)
Absolute magnitude  (MV)−0.078 [5]
Details
Mass 3.43 [6]   M☉
Radius 115 [7]   R☉
Luminosity 4,214 [7]   L☉
Surface gravity (log g)0.72 [6]   cgs
Temperature 4,335 [7]   K
Metallicity [Fe/H]−0.25 [6]   dex
Other designations
V378 Normae, CD−57°6417, HD  148218, HIP  80788, HR  6120
Database references
SIMBAD data

V378 Normae (also known as HR 6120) is a supergiant star in the constellation Norma. It is a likely Cepheid variable with a range of 6.21 to 6.23 and a period of 3.5850 days. [3] It is very faintly visible to the naked eye under excellent observing conditions.

References

  1. ↑ "Hipparcos Tools Interactive Data Access". Hipparcos. ESA. Archived from the original on 26 July 2023. Retrieved 8 December 2021.
  2. 1 2 3 4 5 6 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. 1 2 3 Watson, Christopher (4 January 2010). "V378 Normae". AAVSO Website. American Association of Variable Star Observers. Archived from the original on 15 April 2015. Retrieved 12 April 2015.
  4. ↑ "V378 Normae, HD148218, HIP80788". Universe Guide. 25 January 2015. 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. 1 2 3 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. 1 2 3 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 .


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