A visual band light curve for VY Pyxidis, plotted from data published by Sanwal and Sarma (1991)[1]
Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation
Pyxis
Right ascension
08h 54m 29.6305s[2]
Declination
−23° 31′ 18.575″[2]
Apparent magnitude (V)
7.13 - 7.40[3]
Characteristics
Spectral type
F3/5III[4]
Variable type
BL Her[3]
Astrometry
Proper motion (μ)
RA: 11.081[2] mas/yr Dec.: 29.509[2] mas/yr
Parallax (π)
3.9495 ± 0.0186 mas[2]
Distance
826 ± 4 ly (253 ± 1 pc)
Details
Mass
2.4[5]M☉
Radius
6.5[6]R☉
Luminosity
46[6]L☉
Surface gravity (log g)
2.987[5] cgs
Temperature
6,133[5] K
Metallicity [Fe/H]
−0.101[5] dex
Other designations
VY Pyx, BD−22° 2440, HD 76296, HIP 43736, SAO 176679
Database references
SIMBAD
data
VY Pyxidis is a BL Herculis variable (type II Cepheid) in the constellation of Pyxis. It ranges between apparent magnitudes 7.13 and 7.40 over a period of 1.23995 days.[3] Located around 826 light-years distant, it shines with a luminosity approximately 46 times that of the Sun and has a surface temperature of 6,133 K
^Cite error: The named reference Sanwal was invoked but never defined (see the help page).
^ abcdeBrown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
^ abcWils, Patrick (15 November 2011). "VY Pyxidis". AAVSO Website. American Association of Variable Star Observers. Retrieved 13 July 2014.
^Houk, N.; Smith-Moore, M. (1988), "Catalogue of two-dimensional spectral types for the HD stars, Vol.4", Michigan Spectral Survey, 4, Bibcode:1988mcts.book.....H
^ abcdAnders, F.; Khalatyan, A.; Queiroz, A. B. A.; Chiappini, C.; Ardevol, J.; Casamiquela, L.; Figueras, F.; Jimenez-Arranz, O.; Jordi, C.; Monguio, M.; Romero-Gomez, M.; Altamirano, D.; Antoja, T.; Assaad, R.; Cantat-Gaudin, T.; Castro-Ginard, A.; Enke, H.; Girardi, L.; Guiglion, G.; Khan, S.; Luri, X.; Miglio, A.; Minchev, I.; Ramos, P.; Santiago, B. X.; Steinmetz, M. (2022). "VizieR Online Data Catalog: StarHorse2, Gaia EDR3 photo-astrometric distances (Anders+, 2022)". Vizier Online Data Catalog. Bibcode:2022yCat.1354....0A.
^ abChandler, Colin Orion; et al. (2016). "The Catalog of Earth-Like Exoplanet Survey Targets (CELESTA): A Database of Habitable Zones Around Nearby Stars". The Astronomical Journal. 151 (3): 59. arXiv:1510.05666. Bibcode:2016AJ....151...59C. doi:10.3847/0004-6256/151/3/59. S2CID 119246448.
VYPyxidis is a BL Herculis variable (type II Cepheid) in the constellation of Pyxis. It ranges between apparent magnitudes 7.13 and 7.40 over a period...
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(January 2010). "The Nova Shell and Evolution of the Recurrent Nova T Pyxidis". The Astrophysical Journal. 708 (1): 381–402. arXiv:0906.0933. Bibcode:2010ApJ...
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