HD 63032

Last updated
c Puppis
NGC 2451 a.jpg
The field of cluster NGC 2451; c Puppis is the brightest star in the frame
Observation data
Epoch J2000       Equinox J2000
Constellation Puppis
Right ascension 07h 45m 15.29613s [1]
Declination −37° 58′ 06.9069″ [1]
Apparent magnitude  (V)3.61 [2]
Characteristics
Spectral type K2.5Ib-IIa（K5IIa） + B9V [3]
Apparent magnitude  (U)7.06 [2]
Apparent magnitude  (B)5.34 [2]
Apparent magnitude  (R)2.26 [2]
Apparent magnitude  (I)1.26 [2]
Apparent magnitude  (J)0.68 [2]
Apparent magnitude  (H)-0.075 ± 0.220 [4]
Apparent magnitude  (K)-0.47 [4]
U−B color index 1.72
B−V color index 1.73
Astrometry
Radial velocity (Rv)16.83 ± 0.14 [5]  km/s
Proper motion (μ)RA: −10.54  mas/yr [1]
Dec.: 5.584  mas/yr [1]
Parallax (π)2.9460 ± 0.1482  mas [1]
Distance 1114+67
−64  ly
(341.7+20.5
−19.5  pc) [6]
Details
A
Mass 12.1±1.2 [7]   M☉
Radius 274±14 –301 [8]   R☉
Luminosity 15,152 [9]   L☉
Temperature 3,781 [9]   K
Age 15.8±0.4 [7]   Myr
B
Radius 2.0±0.3 [10]   R☉
Temperature 10,200 ± 300 [10]   K
Other designations
CD −37 3863, CPD −37 1558, HD 63032, HIP 37819, HR 3017, SAO 198398
Database references
SIMBAD data

c Puppis, also known as HD 63032 and HR 3017, is a spectroscopic binary star [3] in the constellation Puppis. Its apparent magnitude is of 3.61, [2] making it the eight-brightest star in Puppis. The system is the brightest member of the open cluster NGC 2451, over two magnitudes brighter than every other star in the cluster. As the turnoff point of the cluster is currently around B7, the parameters of the system fit with cluster membership. [10]

The primary component of the system is a red supergiant or bright giant of spectral classification K2.5Ib-IIa. [3] It is twelve times more massive than the Sun, and is estimated 16 million years old. [7] At this evolutionary stage, it has expanded to 280 times the size of the Sun [8] and is 15,000 more luminous. Its surface has cooled to an effective temperature of 3,781  K, [9] giving it a red-orange hue. [11] The secondary component is a late B-type star, about two times the size of the Sun. c Puppis was first discovered to be a spectroscopic binary in 1982, by D. Groote and D. Reimers. [10]

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<span class="mw-page-title-main">1 Puppis</span> Star in the constellation Puppis

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<span class="mw-page-title-main">Chi Puppis</span> Star in the constellation Puppis

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<span class="mw-page-title-main">KQ Puppis</span> Binary star in the constellation Puppis

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<span class="mw-page-title-main">HD 57197</span> Star in the constellation Puppis

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<span class="mw-page-title-main">MZ Puppis</span> Red supergiant star in the constellation of Puppis

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<span class="mw-page-title-main">HD 27022</span> Star in the constellation Camelopardalis

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<span class="mw-page-title-main">HD 22764</span> Double star; Camelopardalis

HD 22764, also known as HR 1112, is an orange hued star located in the northern circumpolar constellation Camelopardalis. It has an apparent magnitude of 5.78, allowing it to be faintly visible to the naked eye. The object is located relatively far at a distance of approximately 1,770 light years based on Gaia DR3 parallax measurements but is approaching the Solar System with a heliocentric radial velocity of −12.5 km/s. At its current distance, HD 22764's brightness is diminished by 0.66 magnitudes due to interstellar dust.

References

  1. 1 2 3 4 5 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.
  2. 1 2 3 4 5 6 7 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: 0. Bibcode:2002yCat.2237....0D.
  3. 1 2 3 Eggleton, P. P.; Tokovinin, A. A. (September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society . 389 (2): 869–879. arXiv: 0806.2878 . Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. S2CID   14878976.
  4. 1 2 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.
  5. ↑ Mermilliod, J. C.; Mayor, M.; Udry, S. (2008), "Red giants in open clusters. XIV. Mean radial velocities for 1309 stars and 166 open clusters" (PDF), Astronomy and Astrophysics, 485 (1): 303–314, Bibcode:2008A&A...485..303M, doi: 10.1051/0004-6361:200809664
  6. ↑ Bailer-Jones, C. A. L.; Rybizki, J.; Fouesneau, M.; Demleitner, M.; Andrae, R. (2021-03-01). "Estimating distances from parallaxes. V: Geometric and photogeometric distances to 1.47 billion stars in Gaia Early Data Release 3". The Astronomical Journal. 161 (3): 147. arXiv: 2012.05220 . Bibcode:2021AJ....161..147B. doi: 10.3847/1538-3881/abd806 . ISSN   0004-6256. Data about this star can be seen here.
  7. 1 2 3 Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (2011-01-01). "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. c Puppis' database entry at VizieR.
  8. 1 2 Kervella, Pierre; Arenou, Frédéric; Thévenin, Frédéric (2022-01-01). "Stellar and substellar companions from Gaia EDR3. Proper-motion anomaly and resolved common proper-motion pairs". Astronomy and Astrophysics. 657: A7. arXiv: 2109.10912 . Bibcode:2022A&A...657A...7K. doi:10.1051/0004-6361/202142146. ISSN   0004-6361. c Puppis' database entry at VizieR.
  9. 1 2 3 McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012-11-01), "Fundamental parameters and infrared excesses of Hipparcos stars", Monthly Notices of the Royal Astronomical Society, 427: 343–357, arXiv: 1208.2037 , Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x, ISSN   0035-8711 c Puppis' database entry at VizieR.
  10. 1 2 3 4 Groote, D.; Reimers, D. (1983). "Detection of a late B star companion of the bright cluster giant c Pup = HD 63032". Astronomy and Astrophysics. 119 (2): 319–320. Bibcode:1983A&A...119..319G.
  11. ↑ "The Colour of Stars". Australia National Telescope Facility. Retrieved 2024-05-27.
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