60 Andromedae

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Template:Short description Template:About-distinguish

60 Andromedae
Template:Location mark
Location of 60 Andromedae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda[1]
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) +4.82[3]
Characteristics
Spectral type K3.5 III Ba0.4[4]
U−B Template:Engvar +1.74[3]
B−V Template:Engvar +1.48[3]
Astrometry
Radial velocity (Rv)–46.3[5] km/s
Proper motion (μ) RA: –20.90 mas/yr[6]
Dec.: –14.46 mas/yr[6]
Parallax (π)5.2634±0.2576 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)−1.19[1]
Orbit[7]
Period (P)Template:Val days
Semi-major axis (a)Template:Val mas
Eccentricity (e)0.80
Inclination (i)Template:Val°
Longitude of the node (Ω)Template:Val°
Periastron epoch (T)Template:Val HJD
Argument of periastron (ω)
(secondary)		Template:Val°
Semi-amplitude (K1)
(primary)		4.88 km/s
Details
60 And A
MassTemplate:Val[8] Template:Solar mass
Luminosity685[1] Template:Solar luminosity
Surface gravity (log g)1.70±0.44[9] cgs
Temperature4,054±42[9] K
Metallicity [Fe/H]−0.13±0.12[9] dex
Age2.02[10] Gyr
60 And B
MassTemplate:Val[8] Template:Solar mass
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[11]
Database references
SIMBADdata

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60 Andromedae is a star system in the northern constellation of Andromeda, located to the east-northeast of Gamma Andromedae. 60 Andromedae is the Flamsteed designation (abbreviated 60 And), though the star also bears the Bayer designation b Andromedae.[12] It is bright enough to be seen by the naked eye on a dark night, having an apparent visual magnitude of 4.82.[3] Based upon parallax measurements, it is located at a distance of approximately Template:Convert from Earth.[2] The system is drifting closer with a heliocentric radial velocity of –46 km/s.[5]

This system is known to have three components. The primary is an aging giant star with a stellar classification of K3.5 III Ba0.4, meaning that an overabundance of singly-ionized barium (Ba+ ion) is observed in the spectrum of the star, making it a barium star. This star is about 2[10] billion years old with double the mass of the Sun.[8] It is radiating 685[1] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,054 K.[9] The secondary component is likely a degenerate white dwarf with an orbital period of 748.2 days and an eccentricity of 0.34. There is a third component at an angular separation of 0.22 arcseconds.[4]

References

Template:Reflist

External links

  1. Template:Cite simbad

Template:Stars of Andromeda

  1. ↑ a b c d Cite error: Invalid <ref> tag; no text was provided for refs named Anderson_Francis_2012
  2. ↑ a b c d Cite error: Invalid <ref> tag; no text was provided for refs named Gaia_DR2
  3. ↑ a b c d Cite error: Invalid <ref> tag; no text was provided for refs named mnras133_475
  4. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named mnras389_2_869
  5. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named gcsrv
  6. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named aaa474_2_653
  7. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named ren2013
  8. ↑ a b c Cite error: Invalid <ref> tag; no text was provided for refs named aaa398_1163
  9. ↑ a b c d Cite error: Invalid <ref> tag; no text was provided for refs named aaa538_A143
  10. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named Luck_2015
  11. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named SIMBAD
  12. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named uranometria
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