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HD 93607

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HD 93607
Location of HD 93607 in IC 2602 (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Carina
Right ascension 10h 46m 51.21898s[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 mas[1]
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
CPD−63 1655, HD 93607, HIP 52736, HR 4222, SAO 251120
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

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  1. ^ a b c d e f g 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. ^ a b c 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 "Compilation of Eggen's UBV data, transformed to UBV (unpublished)".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 -53.0°. Bibcode:1975mcts.book.....H.
  4. ^ a b c 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. S2CID 53370832.
  5. ^ a b c 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. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x. S2CID 118629873.
  6. ^ a b 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. S2CID 33401607.
  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: 297–298. Bibcode:2001A&A...367..297A. doi:10.1051/0004-6361:20000567.
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