HD 93607

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
Declination	−64° 23′ 00.5045″
Apparent magnitude (V)	4.87
Characteristics
Spectral type	B4V
U−B color index	−0.655
B−V color index	−0.15
Astrometry
Proper motion (μ)	RA: −18.590 mas/yr ; Dec.: +9.832 mas/yr
Parallax (π)	6.6468 ± 0.0739 mas
Distance	491 ± 5 ly ; (150 ± 2 pc)
Absolute magnitude (MV)	−1.116
Details
Mass	5.9 M☉
Radius	3.9 R☉
Luminosity	893 L☉
Surface gravity (log g)	4.098 cgs
Temperature	16,882 K
Metallicity [Fe/H]	+0.34 dex
Rotational velocity (v sin i)	160 km/s
Age	17.5 Myr
Other designations
	CPD−63 1655, HD 93607, HIP 52736, HR 4222, SAO 251120
Database references
SIMBAD	data

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

^ ^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.
^ ^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 "Compilation of Eggen's UBV data, transformed to UBV (unpublished)".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.
^ 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.
^ ^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.
^ ^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.
^ ^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.
^ 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.
^ 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.

[dr3-1] ^ ^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.

[ubv-2] Mermilliod, J.-C (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode:1986EgUBV........0M.

[houk-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.

[silaj-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. S2CID 53370832.

[tetzlaff-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 (1): 190–200. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x. S2CID 118629873.

[david-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. S2CID 33401607.

[skiff-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.

[adelman-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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Observation data Epoch J2000.0 Equinox J2000.0
Location of HD 93607 in IC 2602 (circled)
Constellation	Carina
Right ascension	10^h 46^m 51.21898^s^[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]
Distance	491 ± 5 ly (150 ± 2 pc)
Absolute magnitude (M_V)	−1.116^[4]

Details

Mass	5.9^[5] `M`_☉
Radius	3.9^[1] `R`_☉
Luminosity	893^[4] `L`_☉
Surface gravity (log g)	4.098^[6] cgs
Temperature	16,882^[4] K
Metallicity [Fe/H]	+0.34^[1] dex
Rotational velocity (v sin i)	160^[6] km/s
Age	17.5^[5] Myr

Other designations
CPD−63 1655, HD 93607, HIP 52736, HR 4222, SAO 251120
Database references
SIMBAD	data

References

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