QY Puppis is a K-type supergiant star in the constellation of Puppis. With a radius of 515 R☉, it is on the smaller end of the largest known stars.[7] A variable star, its apparent magnitude varies from 6.24 to 6.71, making it very faintly visible to the naked eye under ideal observing conditions, when it is at its brightest.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 47m 38.5262s[2] |
| Declination | −15° 59′ 26.480″[2] |
| Apparent magnitude (V) | 6.24 - 6.71[3] |
| Characteristics | |
| Spectral type | K1Ia-Iab[4] |
| Apparent magnitude (J) | 3.746[5] |
| Apparent magnitude (H) | 2.958[5] |
| Apparent magnitude (K) | 2.702[5] |
| Variable type | SRd[3] |
| Astrometry | |
| Proper motion (μ) | RA: −2.017[2] mas/yr Dec.: −3.596[2] mas/yr |
| Parallax (π) | 0.3197 ± 0.0330 mas[2] |
| Distance | 10,200 ly (3,100 pc) |
| Details | |
| Mass | 6.2±0.4[6] M☉ |
| Radius | 515[7] R☉ |
| Luminosity | 62,500–63,700[7] L☉ |
| Surface gravity (log g) | 0.16[8] cgs |
| Temperature | 4,251±46[8] K |
| Metallicity [Fe/H] | 0.05[8] dex |
| Age | 63.6±21.7[6] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Properties
editIn 1981, Armando Arellano Ferro published an article stating that the star, then called HD 63302, might be a variable star.[9] It was given its variable star designation, QY Puppis, in 1985.[10] QY Puppis has been classified in the General Catalogue of Variable Stars as a semiregular variable star of type SRD.[3] QY Puppis has a temperature of 4,251 K,[8] and has expanded to a radius of 515 R☉.[7] It is approximately 60 million years old, with a mass of 6.2 M☉.[6]
References
edit- ^ "Hipparcos Tools Interactive Data Access". Hipparcos. ESA. Retrieved 8 December 2021.
- ^ a b c d e 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.
- ^ a b c Samus, N. N.; Kazarovets, E. V.; Durlevich, O. V.; Kireeva, N. N.; Pastukhova, E. N. (January 2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+, 2007-2017)". VizieR Online Data Catalog. 1. Bibcode:2009yCat....102025S.
- ^ Keenan, Philip C.; McNeil, Raymond C. (October 1989). "The Perkins catalog of revised MK types for the cooler stars". The Astrophysical Journal Supplement Series. 71: 245–266. Bibcode:1989ApJS...71..245K. doi:10.1086/191373. ISSN 0067-0049. S2CID 123149047.
- ^ a b c Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues. 2246: II/246. Bibcode:2003yCat.2246....0C.
- ^ a b c Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (January 2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410 (1): 190–200. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x. ISSN 0035-8711. S2CID 118629873.
- ^ a b c d Messineo, M.; Brown, A. G. A. (July 2019). "A Catalog of Known Galactic K-M Stars of Class I Candidate Red Supergiants in Gaia DR2". The Astronomical Journal. 158 (1): 20. arXiv:1905.03744. Bibcode:2019AJ....158...20M. doi:10.3847/1538-3881/ab1cbd. ISSN 0004-6256. S2CID 148571616.
- ^ a b c d Arentsen, Anke; Prugniel, Philippe; Gonneau, Anais; Lançon, Ariane; Trager, Scott; Peletier, Reynier; Lyubenova, Mariya; Chen, Yan-Ping; Falcón Barroso, Jesús; Sánchez Blázquez, Patricia; Vazdekis, Alejandro (July 2019). "Stellar atmospheric parameters for 754 spectra from the X-shooter Spectral Library". Astronomy and Astrophysics. 627: A138. arXiv:1907.06391. Bibcode:2019A&A...627A.138A. doi:10.1051/0004-6361/201834273. ISSN 0004-6361. S2CID 196621431.
- ^ Arellano Ferro, A. (June 1981). "A survey of variable yellow supergiants in the southern milky way". Publications of the Astronomical Society of the Pacific. 93: 351–360. Bibcode:1981PASP...93..351A. doi:10.1086/130837. Retrieved 16 December 2024.
- ^ Kholopov, P. N.; Samus, N. N.; Kazarovets, E. V.; Perova, N. B. (March 1985). "The 67th Name-List of Variable Stars" (PDF). Information Bulletin on Variable Stars. 2681: 1–32. Bibcode:1985IBVS.2681....1K. Retrieved 16 December 2024.
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