Delta Boötis

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δ Boötis
Observation data
Epoch J2000.0
Constellation
(pronunciation)		 Boötes
Right ascension 15h 15m 30.2s
Declination +33° 18' 53"
Apparent magnitude (V) +3.46
Distance 117 ± 3 ly
(36 ± 1 pc)
Spectral type G8IIIFe-1
Other designations
Printseps, 49 Boötis, HR 5681, HD 135722, BD+33°2561, FK5 563, HIP 74666, SAO 64589,
GC 20523, ADS 9559, CCDM 15156+3319

Delta Boötis (δ Boo / δ Boötis) is a binary star in the constellation Boötes. It is approximately 117 light years from Earth.

The primary component, δ Boötis A, is a yellow G-type giant with an apparent magnitude of +3.46. Its companion, δ Boötis B, is a yellow G-type main sequence dwarf with an apparent magnitude of +8.7. Distant of about 3800 AU, the two take about 120,000 years to orbit each other.

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