HD 33463

HD 33463

A light curve for HD 33463, plotted from data published by Burggraaff et al. (2018)[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 05h 11m 38.31132s[2]
Declination +29° 54′ 12.8293″[2]
Apparent magnitude (V) 6.4419±0.0027[3]
Characteristics
Evolutionary stage red giant[3]
Spectral type M2III[4]
B−V color index +1.78[5]
Variable type Suspected[6]
Astrometry
Radial velocity (Rv)10.64±0.22 km/s
Proper motion (μ) RA: +7.895[2] mas/yr
Dec.: −21.036[2] mas/yr
Parallax (π)3.1107 ± 0.1553 mas[2]
Distance1,050 ± 50 ly
(320 ± 20 pc)
Absolute magnitude (MV)−1.07[4]
Details
Mass1.3[7] M☉
Radius133[8] R☉
Luminosity2,114[9] L☉
Surface gravity (log g)0.37[7] cgs
Temperature3,753[8] K
Metallicity [Fe/H]−0.32[7] dex
Other designations
BD+29°833, HD 33463, HIP 24193, SAO 77025, NSV 16257
Database references
SIMBADdata

HD 33463 is a suspected variable star in the northern constellation of Auriga, about 1,050 light years away. It is a red giant star with a stellar classification of M2III, and has expanded away from the main sequence after exhausting its core hydrogen. It has reached 133 times the size of the Sun and, at an effective temperature of 3,753 K it shines at a bolometric luminosity of 2,114 L☉.

Hipparcos satellite data showed possible variations in the apparent magnitude of HD 33463 and it was given the suspected variable star designation NSV 16257.[6] Observations with MASCARA, a camera designed to detect exoplanets, show brightness variations with a maximum amplitude of 21 thousandths of a magnitude and a period slightly less than a day.[1]

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