This article is about b Andromedae. Not to be confused with β Andromedae.
60 Andromedae
Location of 60 Andromedae (circled)
Observation data Epoch J2000 Equinox J2000
Constellation
Andromeda
Right ascension
02h 13m 13.32387s[1]
Declination
+44° 13′ 53.9546″[1]
Apparent magnitude (V)
+4.82[2]
Characteristics
Spectral type
K3.5 III Ba0.4[3]
U−B color index
+1.74[2]
B−V color index
+1.48[2]
Astrometry
Radial velocity (Rv)
–46.3[4] km/s
Proper motion (μ)
RA: –20.90[1] mas/yr Dec.: –14.46[1] mas/yr
Parallax (π)
6.15 ± 0.63 mas[1]
Distance
approx. 530 ly (approx. 160 pc)
Orbit[5]
Period (P)
748.2±0.4 days
Semi-major axis (a)
2.4±0.6 mas
Eccentricity (e)
0.80
Inclination (i)
54.1±19.9°
Longitude of the node (Ω)
344.5±10.3°
Periastron epoch (T)
37886±11 HJD
Argument of periastron (ω) (secondary)
358±6°
Semi-amplitude (K1) (primary)
4.88 km/s
Details
60 And A
Mass
2.0+0.7 −0.3[6]M☉
Surface gravity (log g)
1.70±0.44[7] cgs
Temperature
4054±42[7] K
Metallicity [Fe/H]
−0.13±0.12[7] dex
60 And B
Mass
0.5±0.1[6]M☉
Other designations
b Andromedae,[8] BD+43 447, HD 13520, HIP 10340, HR 643, IRAS 02100+4359, SAO 37867, PPM 44882
Database references
SIMBAD
data
60 Andromedae (abbreviated 60 And) is a star system in the northern constellation of Andromeda, located to the west-northwest of Gamma Andromedae. 60 Andromedae is the Flamsteed designation though the star also bears the Bayer designation b Andromedae. It is bright enough to be seen by the naked eye with an apparent visual magnitude of 4.82.[2] Based upon parallax measurements made during the Hipparcos mission, it is at a distance of roughly 530 light-years (160 parsecs) from Earth.[1]
This system is known to have three components. The primary is a giant star with a stellar classification of K3.5 III Ba0.4, meaning that an overabundance of barium ionized one time is observed in the spectrum of the star, making it a barium star. The secondary component is likely a white dwarf with a period of 748.2 days and an eccentricity of 0.34. There is a third component at an angular separation of 0.22 arcseconds.[3]
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^Tirion; Rappaport; Lovi (1987). Willmann-Bell, Inc. (ed.). Uranometria 2000.0 - Volume II - The Southern Hemisphere to +6°. Richmond, Virginia, USA. ISBN 0-943396-15-8.
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