Location of HD 93194 in IC 2602 (circled) | |
Observation data Epoch J2000.0 Equinox J2000.0 | |
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Constellation | Carina |
Right ascension | 10 44 06.91549 |
Declination | −63° 57′ 39.8535″ |
Apparent magnitude (V) | 4.85 |
Characteristics | |
Spectral type | B3/5Vn |
U−B color index | −0.625 |
B−V color index | −0.145 |
Astrometry | |
Parallax (π) | 6.63 ± 0.18 mas |
Distance | 490 ± 10 ly (151 ± 4 pc) |
Absolute magnitude (MV) | −1.176 |
Details | |
Mass | 5.4 M☉ |
Radius | 4.7 R☉ |
Luminosity | 676 L☉ |
Surface gravity (log g) | 4.10 cgs |
Temperature | 14,761 K |
Metallicity | −0.10 dex |
Rotational velocity (v sin i) | 310 km/s |
Age | 175 Myr |
Other designations | |
CD−63 1623, HD 93194, HIP 52502, HR 4205, SAO 251096 | |
Database references | |
SIMBAD | data |
HD 93194 (HR 4205) is a star in the constellation Carina. Its apparent magnitude is 4.79. Its parent cluster is IC 2602.
HD 93607 is a B4 main sequence star, notable for "nebulous" absorption lines caused by its rapid rotation. 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.
References
- ^ Van Leeuwen, F (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
- ^ 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 "Compilation of Eggen's UBV data, transformed to UBV (unpublished)".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.
- 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.
- ^ Fouesneau, M.; Andrae, R.; Dharmawardena, T.; Rybizki, J.; Bailer-Jones, C. A. L.; Demleitner, M. (2022). "Astrophysical parameters from Gaia DR2, 2MASS, and AllWISE". Astronomy and Astrophysics. 662: A125. arXiv:2201.03252. Bibcode:2022A&A...662A.125F. doi:10.1051/0004-6361/202141828. S2CID 245837778.
- Kervella, Pierre; Arenou, Frédéric; Thévenin, Frédéric (2022). "Stellar and substellar companions from Gaia EDR3". Astronomy & Astrophysics. 657: A7. arXiv:2109.10912. Bibcode:2022A&A...657A...7K. doi:10.1051/0004-6361/202142146. S2CID 237605138.
- Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevic, G.; Monari, G.; Cantat-Gaudin, T. (2019-08-01). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy and Astrophysics. 628: A94. arXiv:1904.11302. Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. ISSN 0004-6361.
- 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.
- Gontcharov, G. A. (2016). "VizieR Online Data Catalog: Thin disk BV-GV Hipparcos stars within 333pc (Gontcharov+, 2012)". Vizier Online Data Catalog. Bibcode:2016yCat..90380860G.
- 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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