Astronomy:HD 93607

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Short description: Star in the constellation Carina
HD 93607
Carina constellation map.svg
Red circle.svg
Location of HD 93607 in IC 2602 (circled)
Observation data
Equinox J2000.0]] (ICRS)
Constellation Carina
Right ascension  10h 46m 51.21898s[1]
Declination −64° 23′ 00.5045″[1]
Apparent magnitude (V) 4.87[2]
Characteristics
Spectral type B4V[3]
U−B color index −0.655[2]
B−V color index −0.15[2]
Astrometry
Proper motion (μ) RA: −18.590[1] mas/yr
Dec.: +9.832[1] mas/yr
Parallax (π)6.6468 ± 0.0739[1] mas
Distance491 ± 5 ly
(150 ± 2 pc)
Absolute magnitude (MV)−1.116[4]
Details
Mass5.9[5] M
Radius3.9[1] R
Luminosity893[4] L
Surface gravity (log g)4.098[6] cgs
Temperature16,882[4] K
Metallicity [Fe/H]+0.34[1] dex
Rotational velocity (v sin i)160[6] km/s
Age17.5[5] Myr
Other designations
Database references
SIMBADdata

HD 93607 (HR 4222) is a star in the constellation Carina. Its apparent magnitude is 4.87. Its parent cluster is IC 2602.

HD 93607 is a B4 main sequence star, although older spectral studies classified it as a subgiant.[7] It is included on a list of the least variable stars amongst those observed by the Hipparcos satellite, with a possible variation less than 0.01 magnitudes.[8]

HD 93607 lies in the core region of the bright open cluster IC 3602. Its age is uncertain but around 17 million years.[5]

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  2. 2.0 2.1 2.2 Mermilliod, J.-C (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode1986EgUBV........0M. 
  3. Houk, N; Cowley, A. P (1975). University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90° to -53.0°. Bibcode1975mcts.book.....H. 
  4. 4.0 4.1 4.2 Silaj, J; Landstreet, J. D (2014). "Accurate age determinations of several nearby open clusters containing magnetic Ap stars". Astronomy & Astrophysics 566: A132. doi:10.1051/0004-6361/201321468. Bibcode2014A&A...566A.132S. 
  5. 5.0 5.1 5.2 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. Bibcode2011MNRAS.410..190T. 
  6. 6.0 6.1 David, Trevor J; Hillenbrand, Lynne A (2015). "The Ages of Early-type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal 804 (2): 146. doi:10.1088/0004-637X/804/2/146. Bibcode2015ApJ...804..146D. 
  7. Skiff, B. A (2014). "VizieR Online Data Catalog: Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016)". VizieR On-line Data Catalog: B/Mk. Originally Published in: Lowell Observatory (October 2014) 1. Bibcode2014yCat....1.2023S. 
  8. Adelman, S. J (2001). "Research Note Hipparcos photometry: The least variable stars". Astronomy and Astrophysics 367: 297–298. doi:10.1051/0004-6361:20000567. Bibcode2001A&A...367..297A.