Nu1 Boötis

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For other star systems with this Bayer designation, see Nu Boötis.

ν1 Boötis
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Boötes
Right ascension 15h 30m 55.8s
Declination +40° 49' 59"
Apparent magnitude (V) +5.04
Distance 872 ± 126 ly
(267 ± 39 pc)
Spectral type K4.5IIIbBa0.4
Other designations
52 Boötis, HR 5763, HD 138481, BD+41°2609, FK5 573, HIP 75973, SAO 45580, GC 20866
Database references

Nu1 Boötis1 Boo, ν1 Boötis) is an orange K-type giant with an apparent magnitude of +5.04. It is approximately 872 light years from Earth.

It has 38 ± 2 times the radius of the Sun.[1]


  1. ^ Nordgren, Tyler E.; et al. (December 1999), "Stellar Angular Diameters of Late-Type Giants and Supergiants Measured with the Navy Prototype Optical Interferometer", The Astronomical Journal, 118 (6): 3032–3038, Bibcode:1999AJ....118.3032N, doi:10.1086/301114 

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