Astronomy:NS Puppis
From HandWiki
Short description: Star in the constellation Puppis
  | |
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Puppis |
| Right ascension | 08h 11m 21.4923s[1] |
| Declination | −39° 37′ 06.7666″[1] |
| Apparent magnitude (V) | 4.40 - 4.50[2] |
| Characteristics | |
| Spectral type | K4.5 Ib[3] |
| Variable type | Lc[2] |
| Astrometry | |
| Radial velocity (Rv) | 16.20[4] km/s |
| Proper motion (μ) | RA: −8.206[1] mas/yr Dec.: 3.694[1] mas/yr |
| Parallax (π) | 3.12 ± 0.34[1] mas |
| Distance | approx. 1,000 ly (approx. 320 pc) |
| Details | |
| Mass | 9.7[5] M☉ |
| Radius | 134[6] R☉ |
| Luminosity | 2,290.87 - 2,488.86[6] L☉ |
| Temperature | 3,898[6] K |
| Age | 25.1[5] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
NS Puppis (NS Pup) is an irregular variable star in the constellation Puppis. Its apparent magnitude varies between 4.4 and 4.5.
NS Puppis is a naked eye star, given the h1 and the Bright Star Catalogue number 3225. It was considered to be a stable star[8][9] until 1966.[10] It was given the variable star designation NS Puppis in 1975.[11]
h2 Puppis is another luminous K-type star with almost the same visual magnitude about a degree to the southeast.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 2.0 2.1 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.
- ↑ Keenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins catalog of revised MK types for the cooler stars". Astrophysical Journal Supplement Series 71: 245. doi:10.1086/191373. Bibcode: 1989ApJS...71..245K.
- ↑ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters 32 (11): 759–771. doi:10.1134/S1063773706110065. Bibcode: 2006AstL...32..759G.
- ↑ 5.0 5.1 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.
- ↑ 6.0 6.1 6.2 Messineo, M.; Brown, A. G. A. (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. Bibcode: 2019AJ....158...20M.
- ↑ "/ftp/cats/more/HIP/cdroms/cats". Strasbourg astronomical Data Center. https://cdsarc.cds.unistra.fr/viz-bin/ftp-index?/ftp/cats/more/HIP/cdroms/cats.
- ↑ Irwin, John B. (1961). "Southern Cepheid Photometry". Astrophysical Journal Supplement 6: 253. doi:10.1086/190066. Bibcode: 1961ApJS....6..253I.
- ↑ Iriarte, B. (1965). "BVRI Photoelectric Photometry for 275 Stars located between -25° y -50° (Spanish Title: Fotometría Fotoeléctrica en BVRI para 275 estrellas comprendidas en su) mayoría entre -25° y -50°". Boletín de los Observatorios de Tonantzintla y Tacubaya 4: 33. Bibcode: 1965BOTT....4...33I.
- ↑ Cousins, A. W. J. (1966). "Fabry photometry of bright southern stars". Royal Observatory Bulletins, Series E 122: 59. Bibcode: 1966RGOB..122...59C.
- ↑ Kukarkin, B. V.; Kholopov, P. N.; Kukarkina, N. P.; Perova, N. B. (1975). "60th Name-List of Variable Stars". Information Bulletin on Variable Stars 961: 1. Bibcode: 1975IBVS..961....1K.
 |  |
