V Antliae

Star in the constellation Antlia
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V Antliae

The visual band light curve of V Antliae, from AAVSO data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Antlia
Right ascension 10h 21m 09.11138s[2]
Declination −34° 47′ 18.7333″[2]
Apparent magnitude (V) 8.2 - 14.0[3]
Characteristics
Spectral type M7IIIe[3]
Variable type Mira[3]
Astrometry
Radial velocity (Rv)2.00 km/s
Proper motion (μ) RA: −2.244±0.196[4] mas/yr
Dec.: 7.071±0.223[4] mas/yr
Parallax (π)1.2582 ± 0.1304 mas[4]
Distanceapprox. 2,600 ly
(approx. 790 pc)
Details
Luminosity24,000[4] L☉
Temperature3,293[4] K
Other designations
2MASS J10210911-3447188, HIP 50697
Database references
SIMBADdata

V Antliae (V Ant) is a Mira variable star in the constellation Antlia. It varies in brightness between magnitudes 8.2 and 14.0 with a period of 303 days.[3] Even at it's brightest, it is far too faint to be seen with the naked eye.

V Antliae's variability was discovered by examining Harvard College Observatory photographic plates, and was announced by Henrietta S. Leavitt and Edward C. Pickering in 1913.[5]

1612 MHz OH maser emission was first detected from this star in 1973.[6] The star's water vapor emission line at 22 GHz was first observed at Haystack Observatory in 1973.[7]

References

  1. ^ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
  2. ^ a b 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. S2CID 18759600.Vizier catalog entry
  3. ^ a b c d Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1: B/gcvs. Bibcode:2009yCat....102025S.
  4. ^ a b c d e 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.
  5. ^ Leavitt, Henrietta S.; Pickering, Edward C. (May 1913). "25 New Variable Stars, Principally in Harvard Maps 39 and 45". Harvard College Observatory Circular. 179: 1-4. Bibcode:1913HarCi.179....1L. Retrieved 1 August 2024.
  6. ^ Dickinson, Dale F.; Chaisson, Eric J. (May 1973). "Long-Period Variables: Correlation of Stellar Period with OH Radial-Velocity Pattern". Astrophysical Journal. 181: L13S-L138. Bibcode:1973ApJ...181L.135D. doi:10.1086/181200. Retrieved 1 August 2024.
  7. ^ Dickinson, D. F. (March 1976). "Water emission from infrared stars". Astrophysical Journal Suppl. Ser. 30: 259-271. Bibcode:1976ApJS...30..259D. doi:10.1086/190362. Retrieved 1 August 2024.
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