1 Puppis
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Puppis |
Right ascension | 07h 43m 32.38658s[1] |
Declination | −28° 24′ 39.1832″[1] |
Apparent magnitude (V) | 4.59[2] |
Characteristics | |
Spectral type | M1III[3] |
U−B color index | +1.94[2] |
B−V color index | +1.63[2] |
Astrometry | |
Radial velocity (Rv) | +32.40[4] km/s |
Proper motion (μ) | RA: -13.73[1] mas/yr Dec.: +30.01[1] mas/yr |
Parallax (π) | 4.22 ± 0.23[1] mas |
Distance | 770 ± 40 ly (240 ± 10 pc) |
Absolute magnitude (MV) | -2.24[5] |
Details | |
Luminosity | 1935[6] L☉ |
Surface gravity (log g) | 0.32[7] cgs |
Temperature | 4,111[7] K |
Metallicity [Fe/H] | -0.19[7] dex |
Rotational velocity (v sin i) | 1.0[8] km/s |
Other designations | |
Database references | |
SIMBAD | data |
1 Puppis (1 Pup) is a class M1III[3] (red giant) star in the constellation of Puppis. Its apparent magnitude is 4.59.[2]
1 Puppis lies in the northern part of the constellation at a distance of 770 ly,[1] east of Aludra in Canis Major and just above the white supergiant, 3 Puppis. It has several components besides the primary: B, of magnitude 13.7 and separation 26", C, of magnitude 9.21 and separation 78.8, and D, of magnitude 10.84 and separation from C of 1.3".[9]
References
- 1 2 3 4 5 6 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
- 1 2 3 4 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.
- 1 2 Abt, Helmut A. (2008). "Visual Multiples. IX. MK Spectral Types". The Astrophysical Journal Supplement Series. 176: 216–217. Bibcode:2008ApJS..176..216A. doi:10.1086/525529.
- ↑ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
- ↑ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. Vizier catalog entry
- ↑ McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental parameters and infrared excesses of Hipparcos stars". Monthly Notices of the Royal Astronomical Society. 427: 343. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. Vizier catalog entry
- 1 2 3 Earle Luck, R. (2014). "Parameters and Abundances in Luminous Stars". The Astronomical Journal. 147 (6): 137. Bibcode:2014AJ....147..137L. doi:10.1088/0004-6256/147/6/137.
- ↑ Glebocki, R.; Gnacinski, P. (2005). "VizieR Online Data Catalog: Catalog of Stellar Rotational Velocities (Glebocki+ 2005)". VizieR On-line Data Catalog: III/244. Originally published in: 2005csss...13..571G; 2005yCat.3244....0G. 3244. Bibcode:2005yCat.3244....0G. Vizier catalog entry
- ↑ 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. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Vizier catalog entry
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