Mu¹ Scorpii
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| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Scorpius |
| Right ascension | 16h51m52.2s |
| Declination | −38°02′51″ |
| Apparent magnitude (V) | +3.00 |
| Distance | 822 ± 248 ly (252 ± 76 pc) |
| Spectral type | B1.5V+B6.5V |
| Other designations | |
- For other star systems with this Bayer designation, see Mu Scorpii.
Mu¹ Scorpii (μ¹ Sco / μ¹ Scorpii) is a star in the constellation Scorpius.
μ¹ Scorpii is an eclipsing binary of the Beta Lyrae type. Both components are blue-white B-type stars. The primary is a subgiant, while the companion is a cooler dwarf. Due to occultation of the primary by the dimmer companion, the apparent magnitude of the system varies from +2.80 to +3.08 over the course of the binary's orbit, which takes 1.4402 days to complete. The system is approximately 822 light years from Earth.
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