Psi Boötis

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ψ Boötis
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Boötes
Right ascension 15h 04m 26.7s
Declination +26° 56' 51"
Apparent magnitude (V) +4.52
Distance 250 ± 13 ly
(77 ± 4 pc)
Spectral type K2III
Other designations
43 Boötis, HR 5616, HD 133582, BD+27°2447, FK5 557, HIP 73745, SAO 83645, GC 20285
Database references

Psi Boötis (ψ Boo, ψ Boötis) is a star in the constellation Boötes.

Psi Boötis is an orange K-type giant with an apparent magnitude of +4.52. It is approximately 250 light years from Earth.


This star, according to Assemani, with another in the right arm that may have been ε Boo (Izar), constituted the Arabs' Al Aulād al Nadhlāt, which he rendered filii altercationis (sons of contention); but the original signifies "the Low, or Mean, Little Ones".[1]

Al Aulād al Nadhlāt or Aulad al Nathlat was the title of this star in the catalogue of stars in Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars.[2]