HD 133683

HD 133683
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Triangulum Australe
Right ascension 15h 09m 29.91331s[1]
Declination −67° 05′ 02.8878″[1]
Apparent magnitude (V) +5.76[2]
Characteristics
Spectral type F5Ib[3]
B−V color index 0.675±0.017[2]
Astrometry
Radial velocity (Rv)−14.72±0.14[1] km/s
Proper motion (μ) RA: −3.146[1] mas/yr
Dec.: −3.314[1] mas/yr
Parallax (π)0.9159 ± 0.0583 mas[1]
Distance3,600 ± 200 ly
(1,090 ± 70 pc)
Details
Mass11.59±1.12[4] M☉
Radius79.3+1.9
−6.2[1] R☉
Luminosity5,436±458[1] L☉
Surface gravity (log g)1.70[5] cgs
Temperature5,567+231
−64[1] K
Metallicity [Fe/H]0.00[5] dex
Rotational velocity (v sin i)4.7±0.2[6] km/s
Other designations
CD−66°1703, FK5 3195, HD 133683, HIP 74184, HR 5621, SAO 253031[7]
Database references
SIMBADdata

HD 133683 is a single[8] star in the southern constellation of Triangulum Australe. It has a yellow-white hue and is dimly visible to the naked eye with an apparent visual magnitude of +5.76.[2] The distance to this star is approximately 3,600 light-years based on parallax, but it is drifting closer with a radial velocity of −14.7 km/s.[1]

This is a massive supergiant star with a stellar classification of F5Ib.[3] It has around 11[4] times the mass of the Sun and is spinning with a projected rotational velocity of 4.7 km/s.[6] The star has expanded to 79[1] times the radius of the Sun. It is radiating 5,400[1] times the luminosity of the Sun from its photosphere at an effective temperature of 5,567 K.[1]

  1. ^ a b c d e f g h i j k l m Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference houk1979 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Hohle2010 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference luck2014 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference AmmlerVonEiff2012 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).