Astronomy:NV Puppis
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Short description: Star in the constellation Puppis
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 18m 18.39335s[1] |
| Declination | −36° 44′ 02.2329″[1] |
| Apparent magnitude (V) | 4.67[2] |
| Characteristics | |
| Spectral type | B2V+B3IVne[3] |
| U−B color index | −0.79[2] |
| B−V color index | −0.10[2] |
| Variable type | γ Cas[4] |
| Astrometry | |
| Radial velocity (Rv) | +18.60[5] km/s |
| Proper motion (μ) | RA: −10.25[1] mas/yr Dec.: +5.82[1] mas/yr |
| Parallax (π) | 4.06 ± 0.18[1] mas |
| Distance | 800 ± 40 ly (250 ± 10 pc) |
| Absolute magnitude (MV) | −2.31[6] |
| Details | |
| Mass | 10.1[7] M☉ |
| Radius | 8.4[8] R☉ |
| Luminosity | 12,300[9] L☉ |
| Surface gravity (log g) | 4.00[8] cgs |
| Temperature | 24,380[10] K |
| Metallicity [Fe/H] | 0.00[11] dex |
| Rotation | 0.466 days[10] |
| Rotational velocity (v sin i) | 254[12] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
NV Puppis (NV Pup), also known as υ1 Puppis, is a class B2V[3] (blue main-sequence) star in the constellation Puppis. Its apparent magnitude is 4.67[2] and it is approximately 800 light years away based on parallax.[1]

It is a γ Cas variable, ranging from 4.78 to 4.58 magnitude.[4] It is most likely an optical double with the nearby NW Puppis.[14]
Neither component of this double is given a letter in Lacaille's catalogue or the British Association star catalogue.[15][16] Gould gave them the designations (Latin letter) v1 and v2 Puppis, but these are rarely used.[17] Lacaille applied the Greek letter υ to the star now called υ Carinae.[15] The designation υ1 first appeared in several catalogues at the end of the 19th century.[18]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V. Vizier catalog entry
- ↑ 2.0 2.1 2.2 2.3 Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues 2237. Bibcode: 2002yCat.2237....0D.
- ↑ 3.0 3.1 Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H 5050. Bibcode: 1995yCat.5050....0H.
- ↑ 4.0 4.1 Samus, N. N. 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. Bibcode: 2009yCat....102025S.
- ↑ Wilson, R. E. (1953). "General Catalogue of Stellar Radial Velocities". Carnegie Institute Washington D.C. Publication (Carnegie Institution for Science). ISBN 9780598216885. Bibcode: 1953GCRV..C......0W.
- ↑ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A. Vizier catalog entry
- ↑ Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (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. Bibcode: 2011MNRAS.410..190T. Vizier catalog entry
- ↑ 8.0 8.1 Doyle, Lauren; Armstrong, David J.; Bayliss, Daniel; Rodel, Toby; Kunovac, Vedad (2024). "The TESS-SPOC FFI target sample explored with Gaia". Monthly Notices of the Royal Astronomical Society 529 (2): 1802. doi:10.1093/mnras/stae616. Bibcode: 2024MNRAS.529.1802D.
- ↑ Hohle, M.M.; Neuhäuser, R.; Schutz, B.F. (2010). "Masses and luminosities of O- and B-type stars and red supergiants". Astronomische Nachrichten 331 (4): 349. doi:10.1002/asna.200911355. Bibcode: 2010AN....331..349H. Vizier catalog entry
- ↑ 10.0 10.1 Balona, Luis A.; Ozuyar, Dogus (2021). "TESS Observations of be Stars: General Characteristics and the Impulsive Magnetic Rotator Model". The Astrophysical Journal 921 (1): 5. doi:10.3847/1538-4357/ac1a77. Bibcode: 2021ApJ...921....5B.
- ↑ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters 38 (12): 771–782. doi:10.1134/S1063773712120031. Bibcode: 2012AstL...38..771G. Vizier catalog entry
- ↑ Yudin, R. V. (2001). "Statistical analysis of intrinsic polarization, IR excess and projected rotational velocity distributions of classical Be stars". Astronomy and Astrophysics 368 (3): 912–931. doi:10.1051/0004-6361:20000577. Bibcode: 2001A&A...368..912Y.
- ↑ "Hipparcos Tools Interactive Data Access". ESA. https://www.cosmos.esa.int/web/hipparcos/interactive-data-access.
- ↑ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal 122 (6): 3466. doi:10.1086/323920. Bibcode: 2001AJ....122.3466M. Vizier catalog entry
- ↑ 15.0 15.1 Coelum australe stelliferum .... H L Guerin & L F Delatour. 1763. pp. 7–. https://books.google.com/books?id=LIo_AAAAcAAJ&pg=PP7.
- ↑ Baily, Francis (1845). "The Catalogue of Stars of the British Association for the Advancement of Science". The Catalogue of Stars of the British Association for the Advancement of Science; Containing the Mean Right Ascensions and North Polar Distances of Eight Thousand Three Hundred and Seventy-Seven Fixed Stars. Bibcode: 1845tcot.book.....B.
- ↑ Kostjuk, N. D. (2004). "VizieR Online Data Catalog: HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index (Kostjuk, 2002)". VizieR On-line Data Catalog: IV/27A. Originally Published in: Institute of Astronomy of Russian Academy of Sciences (2002) 4027. Bibcode: 2004yCat.4027....0K.
- ↑ Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H 5050. Bibcode: 1995yCat.5050....0H.
