Astronomy:QY Puppis
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Short description: Red supergiant star in the constellation of Puppis
Coordinates: 
07h 47m 38.526s, −15° 59′ 26.480″
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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[2] mas |
| 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 |
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.
Properties
In 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
- ↑ "Hipparcos Tools Interactive Data Access". ESA. https://www.cosmos.esa.int/web/hipparcos/interactive-data-access.
- ↑ 2.0 2.1 2.2 2.3 2.4 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 3.0 3.1 3.2 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. doi:10.1086/191373. ISSN 0067-0049. Bibcode: 1989ApJS...71..245K.
- ↑ 5.0 5.1 5.2 Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E. et al. (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. http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=II/246.
- ↑ 6.0 6.1 6.2 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. doi:10.1111/j.1365-2966.2010.17434.x. ISSN 0035-8711. Bibcode: 2011MNRAS.410..190T.
- ↑ 7.0 7.1 7.2 7.3 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. doi:10.3847/1538-3881/ab1cbd. ISSN 0004-6256. Bibcode: 2019AJ....158...20M.
- ↑ 8.0 8.1 8.2 8.3 Arentsen, Anke; Prugniel, Philippe; Gonneau, Anais; Lançon, Ariane; Trager, Scott; Peletier, Reynier; Lyubenova, Mariya; Chen, Yan-Ping et al. (July 2019). "Stellar atmospheric parameters for 754 spectra from the X-shooter Spectral Library". Astronomy and Astrophysics 627: A138. doi:10.1051/0004-6361/201834273. ISSN 0004-6361. Bibcode: 2019A&A...627A.138A.
- ↑ 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. doi:10.1086/130837. Bibcode: 1981PASP...93..351A. https://articles.adsabs.harvard.edu/pdf/1981PASP...93..351A. 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". Information Bulletin on Variable Stars 2681: 1–32. Bibcode: 1985IBVS.2681....1K. https://ibvs.konkoly.hu/pub/ibvs/2601/2681.pdf. Retrieved 16 December 2024.
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