Star type
g G0 IV
Distance from Earth
g 37.48038 ly
Star Service No.
g NA
Age
g 2.4 to 2.7 billion years old
Diameter/Mass/Temp (xSol)
g 270%; 165%; 6100 K
Brightness (xSol)
g 890%
Metallicity
g 140%-200%
Comparison to Sol
g NA
Picture of star
g See
picture
Star system features
g May have an unseen, close spectroscopic companion, which could be a very dim M7 red dwarf star or a white dwarf stellar remnant; if so, it has an orbital period of 1.35 years with the two separated by about the distance between Mars and the Sun
g Star just beginning to make the transition to becoming a red giant
Known planets
g NA
Habitable zone
g An Earth-type planet could have liquid water in a stable orbit centered around 3.0 AU, between the orbital distances of Earth and Mars in the Solar System. Such a planet would have an orbital period around 4.0 years (1,456 days).
Orbital map
g NA
View from star
g See
sky map
Nearby stars
(Star systems with 10 light years)
g Arcturus: 3.3 ly (K1.5 IIIp)
g GJ 1179 AB: 4.3 ly
g Wolf 497: 5.7 ly
g BD+17 2611 AB: 5.9 ly (K1-2 V; M1 V)
g Hip 67593: 6.9 ly
g Ross 837: 7.1 ly
g AC+18 1204-96 AB: 8.8 ly
g BD+19 2881 AB: 9.1 ly (K2 V; ?)
g DT Virginis: 9.3 ly
g Ross 52 AB: 9.7 ly
g BD+27 2296 AB: 9.8 ly (K2-4 V; K6 V)
g CD Bootis AB: 10 ly
g Beta Comae Berenices: 11 ly (F9,5-G0 V)
g Diadem 3: 12 ly (F5 V; F5 V; ?)
g Tau Boötis 2: 14 ly (F7 V; M2 V)
g Xi Boötis 2: 16 ly (G8 Ve; K4-5 Ve)
g Sigma Bootis A?: 17 ly (F3 Vw)
g Porrima 3: 18 ly (F0 V; F0 V; ?)
g HR 5273 AB: 18 ly (G8 V)
g Chara: 18 ly (G0V)
g Gamma Serpentis 2?: 18 ly (F6 V; ?)
g Denebola: 19 ly
g Lambda Serpentis 2: 19 ly (G0 V; ?)
Map locating star system
g See
map (listed as Eta Boo)
Location in Earth sky
g In the southeast corner of of Constellation
Boötes, the Herdsman or Bear Driver, west of
Arcturus, south Globular Cluster
M3 (NGC 5272), east of Globular Cluster
M53, and northeast of Nu Boötis
Other names
g HD 121370; HIP 67927l; BD +19° 2725; YPC 3175.00; Gl 534; Eta Boo; 8 Boo A; Murfid; HR 5235; SAO 100766; FK5 513; LTT 14060; USNO 849; eta Bootis
Sci-fi mentions
g NA
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