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70 Ophiuchi

A double star containing two yellow-orange stars.

Constellation: Ophiuchus
Age: 500 million years
Distance: 16.59 light-years
Radial velocity: -6.9 km/sec
Orbit period of 70 Ophiuchi A and B: 88.13 years

70 Ophiuchi A

Spectral class: K0
Visual magnitude: 4.21
Luminosity: 0.466 * Sun
Mass: 0.82 * Sun
Diameter: 0.891 * Sun
  

70 Ophiuchi B

Spectral class: K5
Visual magnitude: 6.00
Luminosity: 0.0897 * Sun
Mass: 0.6 * Sun
Diameter: 0.73 * Sun

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Photo: ESO Online Digitized Sky Survey
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