HD 121228

Last updated
HD 121228
HD 121228.jpg
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 [3]
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 [1] mas/yr
Dec.: −1.300 [1] mas/yr
Parallax (π)0.5846±0.0260  mas [1]
Distance 5,600 ± 200  ly
(1,710 ± 80  pc)
Absolute magnitude  (MV)−5.32 [4]
Details
Mass 7.0 [5]   M
Radius 19.6 [6]   R
Luminosity 4,124 [7]   L
Surface gravity (log g)2.14 [7]   cgs
Temperature 26,424 [8]   K
Age 31.6 [5]   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

  1. 1 2 3 4 5 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.
  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. 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. 1. Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan. Bibcode:1975mcts.book.....H.
  4. 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.
  5. 1 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. arXiv: 1007.4883 . Bibcode:2011MNRAS.410..190T. doi: 10.1111/j.1365-2966.2010.17434.x . S2CID   118629873.
  6. 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.
  7. 1 2 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.
  8. 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.
  9. "HD 121228". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2023-01-11.

See also