Primary 12 Boötis Aa Magnitude 4.83 | Companion 12 Boötis Ab Constellation Boötes | |
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12 Boötis is a spectroscopic binary in the constellation Boötes. It is approximately 122 light years from Earth.
The primary component, 12 Boötis A, is a yellow-white F-type subgiant with an apparent magnitude of +4.82. The spectroscopic binary pair completes one orbit around its centre of mass once every 9.6045 days, with an estimated separation of 0.0035". A companion, 12 Boötis B, was reported with a separation of approximately one arcsecond in 1989, but subsequent surveys have repeatedly failed to detect this companion.
References
12 Boötis Wikipedia(Text) CC BY-SA