Zeta2 Coronae Borealis
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) |
|
|---|---|
| Constellation | Corona Borealis |
| Right ascension | 15h 39m 22.67317s [1] |
| Declination | +36° 38′ 08.9396″ [1] |
| Apparent magnitude (V) | 4.98[1] |
| Characteristics | |
| Spectral type | B7V[1] |
| Astrometry | |
| Radial velocity (Rv) | −0.00 ± 0.04[1] km/s |
| Proper motion (μ) | RA: -14.82 [1] mas/yr Dec.: -4.74[1] mas/yr |
| Parallax (π) | 6.89 ± 0.52[2] mas |
| Distance | 470 ± 40 ly (150 ± 10 pc) |
| Other designations | |
Zeta2 Coronae Borealis (ζ2 CrB) is a star in the constellation Corona Borealis. Its apparent magnitude is 4.98. It itself is a spectroscopic binary system,[1] made up of two very similar blue-white main sequence stars. Orbit perturbations indicate a third star in the group. Zeta2 is separated by 6.4 arcseconds from Zeta1 Coronae Borealis.[3]
References
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