Mu Sculptoris

Mu Sculptoris
Location of μ Sculptoris (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Sculptor
Right ascension 23h 40m 38.14898s[1]
Declination −32° 04′ 23.2478″[1]
Apparent magnitude (V) 5.30[2] (5.30 – 5.33)[3]
Characteristics
Evolutionary stage giant
Spectral type K1 III[4]
U−B color index +0.69[5]
B−V color index +0.97[6]
Variable type suspected[3]
Astrometry
Radial velocity (Rv)+15.79±0.12[1] km/s
Proper motion (μ) RA: −91.30[7] mas/yr
Dec.: −53.29[7] mas/yr
Parallax (π)11.6622 ± 0.1228 mas[1]
Distance280 ± 3 ly
(85.7 ± 0.9 pc)
Absolute magnitude (MV)0.54[2]
Details
Mass1.32[8] M☉
Radius10.88+0.16
−0.13[1] R☉
Luminosity61.4±0.8[1] L☉
Surface gravity (log g)2.50[8] cgs
Temperature4,899+29
−35[1] K
Metallicity [Fe/H]−0.21[2] dex
Rotational velocity (v sin i)2.6[9] km/s
Other designations
μ Scl, NSV 14661, CD−32°17621, FK5 1618, GC 32888, HD 222433, HIP 116820, HR 8975, SAO 214701, GSC 07515-01148[10]
Database references
SIMBADdata

μ Sculptoris, Latinized as Mu Sculptoris, is a solitary,[11] orange-hued star in the southern constellation of Sculptor. It is visible to the naked eye as a dim point of light with an apparent visual magnitude of +5.30.[2] This star is located approximately 291 light years from the Sun based on parallax,[7] and it is drifting further away with a radial velocity of +16 km/s.[1]

This object is an aging K-type giant star with a stellar classification of K1 III.[4] Having exhausted the supply of hydrogen at its core, this star expanded and cooled off the main sequence. At present it has 11[1] times the girth of the Sun. It is a suspected variable star of unknown type, with its brightness measured as varying from magnitude 5.30 down to 5.33.[3] The star has 1.32[8] times the mass of the Sun and is radiating 61[1] times the Sun's luminosity from its swollen photosphere at an effective temperature of 4899 K.[1]

  1. ^ a b c d e f g h i j k Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference XHIP was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Samus2017 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Hoffleit1991 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference MermiliodUBV was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Mallama2014 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference AllendePrieto was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference deMedeiros2014 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).