Back سعد بارع Arabic Sadalbari AST Sadalbari Catalan Sadalbari German Μ Πηγάσου Greek Sadalbari Spanish Mu Pegasi French Mu Pegasi ID Mu Pegasi Italian ペガスス座ミュー星 Japanese

Mu Pegasi

Mu Pegasi
Location of μ Pegasi (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Pegasus
Right ascension 22h 50m 00.19307s[1]
Declination +24° 36′ 05.6926″[1]
Apparent magnitude (V) 3.514[2]
Characteristics
Evolutionary stage Yellow giant
Spectral type G8 III[3]
U−B color index +0.674[2]
B−V color index +0.932[2]
Astrometry
Radial velocity (Rv)+13.54 ± 0.20[4] km/s
Proper motion (μ) RA: +145.240 mas/yr[1]
Dec.: −42.396 mas/yr[1]
Parallax (π)28.934 ± 0.189 mas[1]
Distance112.7 ± 0.7 ly
(34.6 ± 0.2 pc)
Absolute magnitude (MV)+0.432[5]
Details
Mass2.59±0.05[6] M☉
Radius9.32±0.47[7] R☉
Luminosity46.9±0.6[8] L☉
Surface gravity (log g)2.85±0.03[8] cgs
Temperature4,961±40[8] K
Metallicity [Fe/H]−0.03±0.02[8] dex
Rotational velocity (v sin i)0.95±0.45[6] km/s
Age520±30[6] Myr
Other designations
Sadalbari, Mu Peg, μ Peg, 48 Peg, BD+23 4615, FK5 862, GJ 4298, HD 216131, HIP 112748, HR 8684, SAO 90816[9]
Database references
SIMBADdata

Mu Pegasi or μ Pegasi, formally named Sadalbari (/ˌsædəlˈbɛəri/),[10] is a star in the northern constellation of Pegasus. The apparent visual magnitude of this star is 3.5,[2] which is bright enough to be seen with the naked eye even on a moonlit night. Based upon parallax measurements taken by the Gaia spacecraft, it is approximately 113 light-years (35 parsecs) from the Sun.[1]

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