10 Andromedae

10 Andromedae
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 23h 19m 52.42304s[1]
Declination +42° 04′ 41.0734″[1]
Apparent magnitude (V) 5.81[2]
Characteristics
Spectral type M0 III[3][2]
B−V color index 1.512±0.007[2]
Astrometry
Radial velocity (Rv)−1.1±0.3[4] km/s
Proper motion (μ) RA: +42.417[1] mas/yr
Dec.: +4.900[1] mas/yr
Parallax (π)6.6282 ± 0.0851 mas[1]
Distance492 ± 6 ly
(151 ± 2 pc)
Details
Radius33[5] R
Luminosity258.78[2] L
Other designations
10 And, BD+41° 4752, FK5 3870, HD 219981, HIP 115191, HR 8876, SAO 52914, PPM 64085[6]
Database references
SIMBADdata

10 Andromedae, abbreviated 10 And, is an astrometric binary[3] star system in the northern constellation of Andromeda. 10 Andromedae is the Flamsteed designation. It has an apparent visual magnitude of approximately 5.81,[2] which means it is faintly visible to the naked eye. Based upon an annual parallax shift of 6.6 mas,[1] it is located 492 light years away. The system is moving toward the Earth with a heliocentric radial velocity of −1.1 km/s.[4]

The visible component is an aging red giant star with a stellar classification of M0 III,[2] which indicates it has consumed the hydrogen at its core and evolved off the main sequence. The measured angular diameter of this star, after correction for limb darkening, is 2.01±0.02 mas.[7] At the estimated distance of 10 And, this yields a physical size of about 33 times the radius of the Sun.[5] It is radiating 259[2] times the Sun's luminosity from its enlarged photosphere.

  1. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d e f g Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference lang2006 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Richichi2005 was invoked but never defined (see the help page).