Mu Piscium

Mu Piscium
Location of μ Piscium (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Pisces
Right ascension 01h 30m 11.11444s[1]
Declination +06° 08′ 37.7577″[1]
Apparent magnitude (V) +4.84[2]
Characteristics
Spectral type K4 III[2]
B−V color index 1.38[2]
Astrometry
Radial velocity (Rv)+34.19[2] km/s
Proper motion (μ) RA: +292.00[1] mas/yr
Dec.: −45.95[1] mas/yr
Parallax (π)10.73 ± 0.19 mas[1]
Distance304 ± 5 ly
(93 ± 2 pc)
Absolute magnitude (MV)−0.37[3]
Details
Mass1.25[2] M☉
Radius37[4] R☉
Luminosity186[2] L☉
Surface gravity (log g)2.07[5] cgs
Temperature4,126±27[2] K
Metallicity [Fe/H]−0.39[3] dex
Rotational velocity (v sin i)1.0[6] km/s
Age5.57[2] Gyr
Other designations
μ Psc, 98 Piscium, BD+05° 194, FK5 2099, HD 9138, HIP 7007, HR 434, SAO 109926, WDS J01302+0609A[7]
Database references
SIMBADdata

Mu Piscium (μ Piscium) is a solitary,[8] orange-hued star in the zodiac constellation of Pisces. It is visible to the naked eye with an apparent visual magnitude of 4.84.[2] Based upon an annual parallax shift of 10.73 mas as seen from Earth,[1] it is located about 304 light years from the Sun. Given this distance, it has a relatively high proper motion, advancing 296 mas per year across the sky.[9]

This is an evolved K-type giant star with a stellar classification of K4 III.[2] It has an estimated 1.25[2] times the mass of the Sun and, at the age of 5.6 billion years, has expanded to about 37[4] times the Sun's radius. From this enlarged photosphere, it is radiating 186[2] times the Sun's luminosity at an effective temperature of 4,126 K.[2] It has a magnitude 12.02 visual companion at an angular separation of 209.30 arc seconds along a position angle of 298°, as of 2012.[10]

  1. ^ a b c d e f Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c d e f g h i j k l m Cite error: The named reference Luck2015 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Ryon2009 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference cadars was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Luck2007 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference DeMedeiros2000 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).
  9. ^ Cite error: The named reference Lepine2005 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference WDSC2014 was invoked but never defined (see the help page).