HD 121228

HD 121228
	;
Observation data; Epoch J2000 Equinox J2000
Constellation	Centaurus
Right ascension	13h 55m 52.322s
Declination	−59° 22′ 16.45″
Apparent magnitude (V)	7.86
Characteristics
Spectral type	B1 Ib
Apparent magnitude (U)	7.34
Apparent magnitude (B)	8.00
Apparent magnitude (V)	7.86
Apparent magnitude (R)	8.88
Apparent magnitude (G)	7.7591
Apparent magnitude (J)	7.428
Apparent magnitude (H)	7.426
Apparent magnitude (K)	7.385
Astrometry
Proper motion (μ)	RA: −3.376 mas/yr ; Dec.: −1.300 mas/yr
Parallax (π)	0.5846 ± 0.0260 mas
Distance	5,600 ± 200 ly ; (1,710 ± 80 pc)
Absolute magnitude (MV)	−5.32
Details
Mass	7.0 M☉
Radius	19.6 R☉
Luminosity	4,124 L☉
Surface gravity (log g)	2.14 cgs
Temperature	26,424 K
Age	31.6 Myr
Other designations
	CD−58°5362, HIP 68034, SAO 241302
Database references
SIMBAD	data

HD 121228 is a blue supergiant star located in the constellation Centaurus. The star is noted for its close visual proximity to the planetary nebula SuWt 2.^[9]

References

^ ^a ^b ^c ^d ^e 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.
^ Zacharias, N.; Finch, C. T.; Girard, T. M.; Henden, A.; Bartlett, J. L.; Monet, D. G.; Zacharias, M. I. (2012). "VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)". VizieR On-line Data Catalog. Bibcode:2012yCat.1322....0Z.
^ Houk, Nancy (1975). "Michigan catalogue of two-dimensional spectral types for the HD stars". University of Michigan Catalogue of Two-Dimensional Spectral Types for the Hd Stars. Volume I. Declinations -90_ to -53_Ƒ0. 1. Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan. Bibcode:1975mcts.book.....H.
^ Melnik, A. M.; Dambis, A. K. (2020). "Distance scale for high-luminosity stars in OB associations and in field with Gaia DR2. Spurious systematic motions". Astrophysics and Space Science. 365 (7): 112. arXiv:2006.14649. Bibcode:2020Ap&SS.365..112M. doi:10.1007/s10509-020-03827-0. S2CID 220128144.
^ ^a ^b 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. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x. S2CID 118629873.
^ 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. eISSN 1432-0746. ISSN 0004-6361.
^ ^a ^b 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.
^ Westin, T. N. G. (1985). "The local system of early type stars. Spatial extent and kinematics". Astronomy and Astrophysics Supplement Series. 60: 99. Bibcode:1985A&AS...60...99W.
^ "HD 121228". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2023-01-11.

HD 121228

References

See also