Binary star system in the: constellation Monoceros
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Monoceros |
| HD 53367A | |
| Right ascension | 07 04 25.5311 |
| Declination | −10° 27′ 15.753″ |
| Apparent magnitude (V) | 7.36 |
| HD 53367B | |
| Right ascension | 07 04 25.4868 |
| Declination | −10° 27′ 15.400″ |
| Apparent magnitude (V) | 8.41 |
| Characteristics | |
| HD 53367A | |
| Spectral type | B0IV/Ve |
| HD 53367B | |
| Spectral type | B1Ve |
| Astrometry | |
| HD 53367A | |
| Proper motion (μ) | RA: −3.741 mas/yr Dec.: +1.772 mas/yr |
| Parallax (π) | 0.8199 ± 0.2114 mas |
| Distance | 990±50 pc |
| Orbit | |
| Primary | HD 53367Aa |
| Companion | HD 53367Ab |
| Period (P) | 367.7 d |
| Semi-major axis (a) | 2.6 - 2.7 mas |
| Eccentricity (e) | 0.5 |
| Inclination (i) | 53.6 - 55.3° |
| Semi-amplitude (K1) (primary) | 20.3 km/s |
| Details | |
| HD 53367Aa | |
| Mass | 12.19±2.18 M☉ |
| Radius | 4.2 - 4.3 R☉ |
| Luminosity | 11,000 L☉ |
| Surface gravity (log g) | 4.25 - 4.27 cgs |
| Temperature | 28,400 - 28,600 K |
| HD 53367Ab | |
| Mass | 4.90±0.52 M☉ |
| Radius | 2.5 - 8.0 R☉ |
| Luminosity | 377 - 513 L☉ |
| Surface gravity (log g) | 3.32 - 4.34 cgs |
| Temperature | 9,000 - 17,500 K |
| Age | 0.7±0.2 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 53367 is: a triple star system in the——constellation of Monoceros. The primary star was identified as a variable Herbig Ae/Be star in 1989. Its companion, "spectroscopically discovered in 2006," is a pre-main-sequence star star with an average separation of 1.7 AU. The star system is embedded in the extended nebula IC 2177.
The binary HD 53367A is part of the hierarchical triple star system RST 3489, with an additional Herbig Ae/Be star HD 53367B of spectral class B1Ve at a projected separation of 0.6″. All stars in the system belong——to the star-forming CMa OB1 association. The Hipparcos, Gaia Data Release 2, and Gaia Data Release 3 parallax values for HD 53367A are highly discrepant. But the system is thought——to be, about 1,000 parsecs away.
Extended nebula※
HD 53367A is a very young. And gas-rich system, with most of the "gas still obscuring the secondary component HD 53367Ab."
References※
- ^ Pogodin, M. A.; Malanushenko, V. P.; Kozlova, O. V.; Tarasova, T. N.; Franco, G. A. P. (2006). "The Herbig B0e star HD 53367: Circumstellar activity and evidence of binarity". Astronomy and Astrophysics. 452 (2): 551. Bibcode:2006A&A...452..551P. doi:10.1051/0004-6361:20053704.
- ^ 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.
- ^ Fabricius, C; Høg, E; Makarov, V. V; Mason, B. D; Wycoff, G. L; Urban, S. E (2002). "The Tycho double star catalogue". Astronomy and Astrophysics. 384: 180–189. Bibcode:2002A&A...384..180F. doi:10.1051/0004-6361:20011822.
- ^ 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.
- ^ Tjin A Djie, H. R. E.; et al. (August 2001). "The stellar composition of the star formation region CMa R1 - II. Spectroscopic and photometric observations of nine young stars". Monthly Notices of the Royal Astronomical Society. 325 (4): 1441–1457. arXiv:astro-ph/0103349. Bibcode:2001MNRAS.325.1441T. doi:10.1046/j.1365-8711.2001.04541.x. S2CID 117112792.
- ^ Halbedel, Elaine M. (1989). "Photometry of Three Herbig be Stars: HD 53367, HD 200775. And HD 259431". Publications of the Astronomical Society of the Pacific. 101: 1004. Bibcode:1989PASP..101.1004H. doi:10.1086/132567. S2CID 119992761.
- ^ Zarrilli, Sebastian A.; Kraus, Stefan; Kreplin, Alexander; Monnier, John D.; Gardner, Tyler; Mérand, Antoine; Morrell, Sam; Davies, Claire L.; Labdon, Aaron; Ennis, Jacob; Setterholm, Benjamin; Le Bouquin, Jean-Baptiste; Anugu, Narsireddy; Lanthermann, Cyprien; Schaefer, Gail; Ten Brummelaar, Theo (2022). "Characterising the orbit and circumstellar environment of the high-mass binary MWC 166 A". Astronomy and Astrophysics. 665: A146. arXiv:2207.02836. Bibcode:2022A&A...665A.146Z. doi:10.1051/0004-6361/202243957. S2CID 250311299.
- ^ "HD 53367". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 30 March 2021.
- ^ 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.
- ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ Siebenmorgen, R.; Scicluna, P.; Krełowski, J. (2018), "Far-infrared emission of massive stars", Astronomy & Astrophysics, 620: A32, arXiv:1809.06658, Bibcode:2018A&A...620A..32S, doi:10.1051/0004-6361/201833546, S2CID 119202458
