HD 93607

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
Location of HD 93607 in IC 2602 (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Carina
Right ascension  10h 46m 51.21999s[1]
Declination −64° 23′ 00.5043″[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
Parallax (π)6.79 ± 0.17[1] mas
Distance480 ± 10 ly
(147 ± 4 pc)
Absolute magnitude (MV)−1.116[4]
Details
Mass5.9[5] M☉
Luminosity893[4] L☉
Surface gravity (log g)4.098[6] cgs
Temperature16,882[4] K
Rotational velocity (v sin i)160[6] km/s
Age17.5[5] Myr
Other designations
CPD−63 1655, HD 93607, HIP 52736, HR 4222, SAO 251120
Database references
SIMBADdata

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. 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.
  2. Mermilliod, J.-C (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode:1986EgUBV........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_ƒ0". University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0. Bibcode:1975mcts.book.....H.
  4. Silaj, J; Landstreet, J. D (2014). "Accurate age determinations of several nearby open clusters containing magnetic Ap stars". Astronomy & Astrophysics. 566: A132. arXiv:1407.4531. Bibcode:2014A&A...566A.132S. doi:10.1051/0004-6361/201321468.
  5. 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: 190. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x.
  6. 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. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146.
  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. Bibcode:2014yCat....1.2023S.
  8. Adelman, S. J (2001). "Research Note Hipparcos photometry: The least variable stars". Astronomy and Astrophysics. 367: 297. Bibcode:2001A&A...367..297A. doi:10.1051/0004-6361:20000567.
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