astro.wikisort.org - StarVY 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
Star in the constellation Pyxis
VY Pyxidis
 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 |
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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) |
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Details |
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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 |
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Other designations |
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VY Pyx, BD−22° 2440, HD 76296, HIP 43736, SAO 176679 |
Database references |
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SIMBAD | data |
References
- Sanwal, N. B.; Sarma, M. B. K. (June 1991). "BV 690, a new Bright Type II Cepheid". Journal of Astrophysics and Astronomy. 12: 119–131. doi:10.1007/BF02709301. Retrieved 1 March 2022.
- Brown, 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. Gaia EDR3 record for this source at VizieR.
- Wils, 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:1988MSS...C04....0H
- Anders, 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.
- Chandler, 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.
Constellation of Pyxis |
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Stars | Bayer | |
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Variable | |
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HR |
- 3336
- 3344
- 3362
- 3367
- 3381
- 3384
- 3397
- 3402
- 3425
- 3430
- 3434
- 3463
- 3473
- 3479
- 3483
- 3507
- 3512
- 3513
- 3516
- 3533
- 3534
- 3559
- 3585
- 3597
- 3637
- 3710
- 3745
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HD | |
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Other | |
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Galaxies | |
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 Category |
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