Kappa bootis

from Wikipedia, the free encyclopedia
Double star
κ Bootis
Observation
dates equinox :  J2000.0 , epoch : J2000.0
AladinLite
Constellation Bear keeper
Right ascension 14 h 13 m 29 s
declination + 51 ° 47 ′ 24 ″
Apparent brightness  4.4 likes
Astrometry
distance  approx. 155 ly
(approx. 48 pc )
Individual data
Names A / κ 2 ; B / κ 1
Observation data:
Apparent brightness A / κ 2 4.54 mag
B / κ 1 6.58 mag
Typing:
Spectral class A / κ 2 A8 IV
B / κ 1 F1 V
Other names
and catalog entries
Bayer name κ Bootis
Flamsteed name 17 bootis
Bonn survey BD + 52 ° 1782
Bright Star Catalog HR 5329 HR 5328
Henry Draper Catalog HD 124675 HD 124674
SAO catalog SAO 29046 SAO 29045
Tycho catalog TYC 3471-1250-1 [1] TYC 3471-1251-1 [2]
Hipparcos catalog HIP 69483 HIP 69481

κ Bootis ( Kappa Bootis , pronunciation: "Bo-otes") is a double star (angular distance 13.4 ") that can be separated even in small telescopes. It consists of a star of the spectral class A8 IV with an apparent magnitude of 4.54 mag and a somewhat weaker one of the spectral class F1 V and the brightness 6.58 mag. The distance from κ Bootis is approx. 155  light years .

The star bears the historical proper name Asellus Tertius . Together with the close neighboring stars θ and ι Bootis ( Asellus Primus and Asellus Secundus ), κ Bootis is on the northern edge of the constellation, near the drawbar of the Big Dipper .