1 Persei
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Perseus |
| Right ascension | 01h 51m 59.320s[1] |
| Declination | +55° 08′ 50.58″[1] |
| Characteristics | |
| Spectral type | B1.5V [2] |
| Variable type | eclipsing binary[3] |
| Astrometry | |
| Proper motion (μ) | RA: 12.05 ± 0.25[1] mas/yr Dec.: −9.18 ± 0.28[1] mas/yr |
| Parallax (π) | 2.52 ± 0.33[1] mas |
| Distance | approx. 1,300 ly (approx. 400 pc) |
| Other designations | |
1 Persei (1 Per) is a eclipsing binary[3] star in the constellation Perseus. Its apparent magnitude is 5.51.
Properties
1 Persei is an eclipsing binary star consisting of two B2 stars in a 25.9 day orbit.[4]
References
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