HD 121228

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.[5][6]

HD 121228

Observation data
Epoch J2000      Equinox J2000
Constellation Centaurus
Right ascension 13h 55m 52.322s[1]
Declination −59° 22′ 16.45″[1]
Apparent magnitude (V) 7.86[2]
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
Parallax (π)0.6538 ± 0.0435[1] mas
Distance5,000 ± 300 ly
(1,500 ± 100 pc)
Absolute magnitude (MV)-5.778[3]
Details
Mass7.0[4] M☉
Temperature26,424[3] K
Age31.6[4] Myr
Other designations
CD−58° 5362, HIP 68034, SAO 241302
Database references
SIMBADdata

References
  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. "HD 121228". SIMBAD. Retrieved November 26, 2018.
  6. "PN SuWt 2". SIMBAD. Retrieved November 26, 2018.

See also


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