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Barnard’s star is a star in the constellation Ophiuchus. Of apparent magnitude +9.51, it is too faint to be observed without a telescope.

Distance to Earth: 5,978 light years

Surface temperature: 3,134K

Age: 10.01 billion years

Radius: 136,360km

Mass: 2.864 × 10^29 kg (0.144 M☉)

Constellation: Ophiuchus

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