HV 11423

HV 11423

HV 11423 is visible in the full-size image, just to the left (south is up) of cluster NGC 361 (below centre, between the two bright foreground stars). (Digitized Sky Survey 2)
Observation data
Epoch J2000      Equinox J2000
Constellation Tucana
Right ascension 01h 00m 55.20s[1]
Declination −71° 37′ 52.9″[1]
Apparent magnitude (V) 11.84 - 12.46[2]
Characteristics
Evolutionary stage Red supergiant
Spectral type M0 Iab[3] (K0/1 I - M4.5/5 I[4])
B−V color index +1.88 - +1.95[2]
Variable type Lc[5]
Astrometry
Radial velocity (Rv)108.268[6] km/s
Parallax (π)0.0692 ± 0.0336 mas[7]
Distance200,000 ly
Absolute magnitude (MV)−6.5 - −8.4[4]
Details[4][8]
Radius1,060-1,220 (Spectral fit), 960-1,000 (V-K) R☉
Luminosity350,000-200,000 (Spectral fit), 166,000 (V-K) L☉
Surface gravity (log g)−0.4-−0.2 cgs
Temperature4,300-3,500 (Spectral fit), 4,4803,635 (V-K) K
Other designations
PMMR 114, LI-SMC 140, 2MASS J01005519-7137529
Database references
SIMBADdata

HV 11423 (PMMR 114 or 140 LI-SMC) is a red supergiant star in the Small Magellanic Cloud. It is about 200,000 light-years away towards the constellation of Tucana.

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  2. ^ a b Cite error: The named reference levesque was invoked but never defined (see the help page).
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  4. ^ a b c Cite error: The named reference massey was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference gcvs was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference RAVE was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference dr2 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Groenewegen2017 was invoked but never defined (see the help page).