Astronomy:V337 Carinae

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Short description: Star in the constellation of Carina
This page is about Astronomy:Astronomy:Q Carinae. For Astronomy:Q Carinae, see Astronomy:HD 61248.
V337 Carinae
Carina constellation map.svg
Red circle.svg
Location of V337 Carinae (circled)
Observation data
Equinox J2000.0]] (ICRS)
Constellation Carina
Right ascension  10h 17m 04.9753s[1]
Declination −61° 19′ 56.288″[1]
Apparent magnitude (V) 3.36 to 3.44[2]
Characteristics
Spectral type K2.5II[3]
U−B color index +1.72[4]
B−V color index +1.54[4]
R−I color index +0.77[4]
Variable type LC[2]
Astrometry
Radial velocity (Rv)8.2±0.9[5] km/s
Proper motion (μ) RA: −23.922[1] mas/yr
Dec.: 6.734[1] mas/yr
Parallax (π)4.3046 ± 0.1345[6] mas
Distance760 ± 20 ly
(232 ± 7 pc)
Details
Mass9.0[7] M☉
Radius128[7] R☉
Luminosity3,236[7] L☉
Surface gravity (log g)1.17 - 1.36[7] cgs
Temperature4,118[7] K
Metallicity [Fe/H]0.54[7] dex
Age45.5[8] Myr
Other designations
V337 Car, q Carinae, q Car, CCDM J10171-6120A, CD−60°3010, CPD−60°1817, CSI−60° 1817 41, FK5 1264, GC 14133, GSC 08943-03447, HD 89388, HIP 50371, HR 4050, IDS 10137-6050 A, PPM 357895, SAO 250905, TYC 8943-3447-1[9]
Database references
SIMBADdata

V337 Carinae (V337 Car, q Carinae) is a K-type bright giant star in the constellation of Carina. It is an irregular variable and has an apparent visual magnitude which varies between 3.36 and 3.44.

A light curve for V337 Carinae, plotted from TESS data[10]

V337 has a spectral class of K2.5II, indicating a bright giant. It is considered likely to be on the red giant branch of stars fusing hydrogen around an inert helium core.[7] Its limb-darkened angular diameter has been measured using interferometry at 2.4 mas.[11]

V337 Carinae has two companions listed in multiple star catalogues. Both are 13th-magnitude stars, component B 16.9″ and component C 25.9″ away.[12] Component B is a distant background star,[13] while component C is at about the same distance as V337 Carinae.[14]

References

  1. ↑ 1.0 1.1 1.2 1.3 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. ↑ 2.0 2.1 V337 Car, database entry, The combined table of GCVS Vols I-III and NL 67-78 with improved coordinates, General Catalogue of Variable Stars , Sternberg Astronomical Institute, Moscow, Russia. Accessed on line August 27, 2008.
  3. ↑ Keenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins Catalog of Revised MK Types for the Cooler Stars". The Astrophysical Journal Supplement Series 71: 245. doi:10.1086/191373. Bibcode: 1989ApJS...71..245K. 
  4. ↑ 4.0 4.1 4.2 D. Hoffleit; W. H. Warren, Jr.. "The Bright Star Catalogue, Database entry for HR 4050". Centre de Données astronomiques de Strasbourg (CDS). http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=V/50/catalog&recno=4050. 
  5. ↑ 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. 
  6. ↑ Brown, A. G. A. (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics 649: A1. doi:10.1051/0004-6361/202039657. Bibcode: 2021A&A...649A...1G.  Gaia EDR3 record for this source at VizieR.
  7. ↑ 7.0 7.1 7.2 7.3 7.4 7.5 7.6 Kallinger, T.; Beck, P. G.; Hekker, S.; Huber, D.; Kuschnig, R.; Rockenbauer, M.; Winter, P. M.; Weiss, W. W. et al. (2019). "Stellar masses from granulation and oscillations of 23 bright red giants observed by BRITE-Constellation". Astronomy and Astrophysics 624: A35. doi:10.1051/0004-6361/201834514. Bibcode: 2019A&A...624A..35K. 
  8. ↑ 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. doi:10.1111/j.1365-2966.2010.17434.x. Bibcode: 2011MNRAS.410..190T. 
  9. ↑ V* V337 Car -- Variable Star, database entry, SIMBAD. Accessed on line August 27, 2008.
  10. ↑ "MAST: Barbara A. Mikulski Archive for Space Telescopes". Space Telescope Science Institute. https://mast.stsci.edu/portal/Mashup/Clients/Mast/Portal.html. 
  11. ↑ Richichi, A.; Percheron, I.; Davis, J. (2009). "A list of bright interferometric calibrators measured at the European Southern Observatory Very Large Telescope Interferometer". Monthly Notices of the Royal Astronomical Society 399 (1): 399. doi:10.1111/j.1365-2966.2009.15289.x. Bibcode: 2009MNRAS.399..399R. 
  12. ↑ 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. 
  13. ↑ 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.
  14. ↑ 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.



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