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Eta Boötis
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Star Eta Boötis

Subgiant Eta Boötis is located 37 light years away from the Sun. It is suspected double or multiple star of spectral class G0IV, that has 171 % of solar mass. For now, there are no known exoplanets in this star system.
Sun distance
37 light years
galaxy map

Eta Boötis

Subgiant, Spectroscopic binary
Spectral class: G0IV

Location

Ascension iconRight ascension: 13h 54m 41.085s
Declination iconDeclination: 18° 23' 51.795'' (equatorial region)
Parallax iconParallax: 87.75
Distance iconSun distance: 37.169 ly | 11.4 pc

Basic characteristic

icon weight
Mass: 171 % M Sun | 1791 M Jupiter
radius icon
Size: 267 % R Sun | 26.6 R Jupiter
temperature iconTemperature: 6155 K | 1.07 T Sun
time iconAge: 2.7 billions years | 0.59 Sun
luminosity iconLuminosity: 8.89 L Sun

Photometry

Magnitude iconApparent magnitude (V): 2.7
Magnitude iconAbsolute magnitude (V): 2.4
5
10
15
20
25
30
35
K
2.1
H
1.6
J
1.2
Grp
0.8
I
0.8
G
0.6
V
0.5
Gbp
0.5
B
0.4
U
0.3
Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).

Eta Boötis system structure

Eta Boötis
More about Eta Boötis
Nearby star Eta Boötis is is approximately 3 times bigger than the Sun and temperature on its surface is around 6155 K (5882 °C), which is about 107 % of Sun's temperature.
       Eta Boötis can be found in northern celestial hemisphere, and it is possible to see it with naked eye. The star is easily observable from Northern America, Europe and Asia.
Other designations of this star
Muphrid, Saak, 8 Boötis, Gl 534, GJ 534, Gliese 534, HR 5235, BD +19°2725, HD 121370, LTT 14060, GCTP 3175.00, SAO 100766, FK5 513, HIP 67927, WDS J13547+1824, * eta Boo, 8 Boo, FK5 513, 2MASS J13544106+1823514, TIC 367758676, TYC 1470-1157-1, WDS J13547+1824A
External sources
simbad icon
Simbad database (* eta Boo)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
Class of stars Subgiant
A subgiant is a term used to describe a luminous star that is typically running out of hydrogen for nuclear fusion and is thus departing from the main sequence. These stars are classified as Yerkes luminosity class IV.
Closest stars

 Arcturus
 1.1 M☉ 3.3 ly

EGGR 438
 - 3.9 ly

BD+18 2776
 - 5.2 ly

HD 115404
 0.7 M☉ 5.9 ly

ULAS J133553.45+113005.2
 0.02 M☉ 6.1 ly
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