Astronomy:HD 93607
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Short description: Star in the constellation Carina
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| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Carina[1] |
| Right ascension | 10h 46m 51.21898s[2] |
| Declination | −64° 23′ 00.5045″[2] |
| Apparent magnitude (V) | 4.87[3] |
| Characteristics | |
| Evolutionary stage | main sequence[2] |
| Spectral type | B4V[4] |
| U−B color index | −0.655[3] |
| B−V color index | −0.15[3] |
| Astrometry | |
| Proper motion (μ) | RA: −18.590[2] mas/yr Dec.: +9.832[2] mas/yr |
| Parallax (π) | 6.6468 ± 0.0739[2] mas |
| Distance | 491 ± 5 ly (150 ± 2 pc) |
| Absolute magnitude (MV) | −1.116[5] |
| Details | |
| Mass | 5.9[6] M☉ |
| Radius | 3.9[2] R☉ |
| Luminosity | 893[5] L☉ |
| Surface gravity (log g) | 4.098[7] cgs |
| Temperature | 16,882[5] K |
| Metallicity [Fe/H] | +0.34[2] dex |
| Rotational velocity (v sin i) | 160[7] km/s |
| Age | 17.5[6] Myr |
| Other designations | |
| 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.[8] 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.[9]
HD 93607 lies in the core region of the bright open cluster IC 3602. Its age is uncertain but around 17 million years.[6]
References
- ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific 99 (617): 695. doi:10.1086/132034. Bibcode: 1987PASP...99..695R Constellation record for this object at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 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.
- ↑ 3.0 3.1 3.2 Mermilliod, J.-C (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode: 1986EgUBV........0M.
- ↑ Houk, 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.
- ↑ 5.0 5.1 5.2 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. Bibcode: 2014A&A...566A.132S.
- ↑ 6.0 6.1 6.2 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. Bibcode: 2011MNRAS.410..190T.
- ↑ 7.0 7.1 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. Bibcode: 2015ApJ...804..146D.
- ↑ 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. doi:10.1051/0004-6361:20000567. Bibcode: 2001A&A...367..297A.
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