HD 54475

D Puppis, also known as HD 54475, is a B-type star and a pulsating variable in the constellation of Puppis.[1][2] It has an apparent magnitude of 5.783,[1] which is enough to be visible to the unaided eye.[a] The distance to D Puppis, based on a parallax of 4.2±0.2 mas from the Hipparcos satellite, is 776 light-years.[3][b]

HD 54475
Observation data
Epoch J2000      Equinox J2000
Constellation Puppis[4][note 1]
Right ascension 07h 07m 07s[1]
Declination −40° 53′ 35.77″[1]
Apparent magnitude (V) 5.783±0.009[1]
Characteristics
Evolutionary stage B-type main-sequence star[1]
Spectral type B3V[1]
Variable type Pulsating variable[1]
Astrometry
Radial velocity (Rv)6±3.2[1] km/s
Proper motion (μ) RA: −10.554±0.069 mas/yr[1]
Dec.: 11.163±0.0689 mas/yr[1]
Parallax (π)4.2 ± 0.2 mas[3]
Distance776.19 ly
(238.1 pc)[3]
Absolute magnitude (MV)-0.95[2]
Details
Mass6.2±0.1[5] M
Radius3.544[6][c] R
Luminosity689.67[7] L
Temperature15,723[7] K
Age15.8±0.3[5] Myr
Other designations
CD−40 2930, HD 54475, HIP 34339, HR 2691, SAO 218465, TIC 157533670, TYC 7633-2698-1, WISE J070707.07-405335.6
Database references
SIMBADdata
  1. ^ a b c d e f g h i j k "HD 54475". SIMBAD. Centre de données astronomiques de Strasbourg.
  2. ^ a b Ford, Dominic. "D-Pup (Star)". In-The-Sky.org. Retrieved 2024-04-15.
  3. ^ a b c van Leeuwen, F. (2007-11-01). "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. ISSN 0004-6361.
  4. ^ Cite error: The named reference aavso was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference :0 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference cruzalebes was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference McDonald was invoked but never defined (see the help page).


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