Iota Boötis [SEP] constellation
Iota Boötis
Iota Boötis (ι Boo, ι Boötis) is a star system in the constellation Boötes. It has the traditional name Asellus Secundus (Latin for "second donkey colt") and the Flamsteed designation 21 Boötis. It is approximately 95 light years from Earth.
Nomenclature.
This star, along with the other "Aselli" (θ Boo and κ Boo) and λ Boo, were "Aulād al Dhiʼbah" (أولاد الضّباع - "aulād al dhiʼb"), "the Whelps of the
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