Beta Serpentis
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| Observation data Epoch J2000.0 Equinox J2000.0 |
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|---|---|
| Constellation | Serpens |
| Right ascension | 15h 46m 11.3s |
| Declination | +15° 25' 19" |
| Apparent magnitude (V) | +3.65 |
| Distance | 153 ± 6 ly (47 ± 2 pc) |
| Spectral type | A3V |
| Other designations | |
Beta Serpentis (β Ser / β Serpentis) is a star system in the constellation Serpens, in its head (Serpens Caput). It has the traditional name Chow, from the Chinese 周 "Zhōu (Dynasty)". Beta Serpentis is approximately 153 light years from Earth and is a member of the Ursa Major Moving Group.
The primary component, Beta Serpentis A, is a white A-type main sequence dwarf with an apparent magnitude of +3.65. It has two companions, the magnitude +9.9 B, 31 arcseconds distant, and the magnitude +10.7 C, 201 arcseconds away.
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