Theta Boötis [SEP] constellation
Theta Boötis
Theta Boötis (θ Boo, θ Boötis) is a main sequence star in the constellation Boötes, about 47 light years away. It has the traditional name Asellus Primus (Latin for "first donkey colt") and the Flamsteed designation 23 Boötis.
Nomenclature.
θ Boötis, along with the other "Aselli" (ι Boo and κ Boo) and λ Boo, were "Aulād al Dhiʼbah (أولاد الضّباع" - "aulād al dhiʼb"), "the Whelps of the Hyenas"
أولاد الضباع - "aulād al dhiʼb"), "the Whelps of the Hyenas", Theta, Iota, Kappa and Lambda Boötis (or Xuange) are a small group of stars in the far north of the constellation. The magnitude 4.05 Theta Boötis has a spectral type of F7 and an absolute magnitude of 3.8. Iota Boötis is a triple star with a primary of magnitude 4.8 and spectral class of A7, a secondary of magnitude 7.5, and a tertiary of magnitude 12.6. The primary is 97 light-years