HD 47536

HD 47536

Sky area of 10 x 10 square arcmin around the 6th-magnitude giant star HD 47536.
Reproduced from the Digital Sky Survey.
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Canis Major
Right ascension 06h 37m 47.61811s[1]
Declination −32° 20′ 23.0405″[1]
Apparent magnitude (V) +5.25[2]
Characteristics
Evolutionary stage giant[3]
Spectral type K1 III[4]
B−V color index +1.177±0.002[2]
Astrometry
Radial velocity (Rv)79.64±0.13[1] km/s
Proper motion (μ) RA: 107.755±0.053 mas/yr[1]
Dec.: 65.122±0.059 mas/yr[1]
Parallax (π)7.9902 ± 0.0535 mas[1]
Distance408 ± 3 ly
(125.2 ± 0.8 pc)
Absolute magnitude (MV)−0.17±0.15[5]
Details[5]
Mass0.94±0.06 M☉
Radius23.08+0.68
−0.81[6] R☉
Luminosity177.2±2.3[6] L☉
Surface gravity (log g)1.72±0.08 cgs
Temperature4,384+79
−64[6] K
Metallicity [Fe/H]−0.68 dex
Rotation625 days[7]
Rotational velocity (v sin i)1.93±0.50[3] km/s
Age9.33±1.88 Gyr
Other designations
CD–32°3216, HD 47536, HIP 31688, HR 2447, SAO 197019, GSC 07091-01257[8]
Database references
SIMBADdata

HD 47536 is a single[9] star in the southern constellation of Canis Major. It has an orange hue and is dimly visible to the naked eye with an apparent visual magnitude of +5.25.[2] The star is located at a distance of approximately 408 light years from the Sun based on parallax. It is drifting further away with a radial velocity of 80 km/s.[1]

This is an aging, metal-poor giant star with a stellar classification of K1 III.[4] It is about 9.3 billion years old with 94% of the mass of the Sun. Having exhausted the supply of hydrogen at its core, the star cooled and expanded to 23 times the Sun's radius.[6] The star is spinning slowly, taking 1.71 years to complete its sidereal rotation. It is radiating 177[6] times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,384 K.[6] As of 2015, at least one planet is known to orbit this star.[10]

  1. ^ a b c d e f Cite error: The named reference GaiaDR3 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 Setiawan2003 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference houk1979 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference aaa458_2_609 was invoked but never defined (see the help page).
  6. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference aaa421_241 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Soto2015 was invoked but never defined (see the help page).