HD 33579

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HD 33579

HD 33579
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Dorado
Right ascension 5.09875234
Declination -67.88636780
Apparent magnitude (V) +9.13
Characteristics
Spectral type A3:Ia0e
U−B color index -0.31
B−V color index +0.14
Variable type semiregular
Astrometry
Radial velocity (Rv) −253 km/s
Proper motion (μ) RA: 2.31 mas/yr
Dec.: -0.46 mas/yr
Parallax (π) -0.18 mas
Distance ~160,000 ly
(~50,000 pc)
Absolute magnitude (MV) −9.7
Details
Mass 60 M
Radius 400 R
Luminosity 648,000 L
Temperature 7980 K
Metallicity ?
Rotation ?
Age ? years
Other designations
HD 33579, HIP 23718
Database references
SIMBAD data

HD 33579 is a star in the Large Magellanic Cloud.[1]

It is a white/yellow hypergiant and one of the brightest stars in the LMC.[2] It is an extremely rare type of star currently evolving for the first time through the yellow evolutionary void from being a blue hypergiant to becoming a red hypergiant.[2] This means the star is often referred to as a yellow hypergiant although the spectral type of A3 means it is also described as a white hypergiant.[2]

References[edit]

  1. ^ Przybylski, A. (1968). "The analysis of the spectrum of the Large Magellanic Cloud supergiant HD 33579". Monthly Notices of the Royal Astronomical Society. Vol. 139: p.313. Bibcode:1968MNRAS.139..313P. 
  2. ^ a b c Nieuwenhuijzen, H.; De Jager, C. (2000). "Checking the yellow evolutionary void. Three evolutionary critical Hypergiants: HD 33579, HR 8752 & IRC +10420". Astronomy and Astrophysics. v.353: p.163–176 (2000). Bibcode:2000A&A...353..163N.