Observation data Epoch J2000.0 Equinox J2000.0 |
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Constellation | Eridanus |
Right ascension | 01 |
Declination | -56° 11′ 47.0997″ |
Apparent magnitude (V) | 5.87 / 5.76 |
Characteristics | |
Spectral type | K0V / K5V |
U−B color index | 0.56 / 0.61 |
B−V color index | 0.85 / 0.88 |
Variable type | None |
Astrometry | |
Radial velocity (Rv) | +19.5 km/s |
Proper motion (μ) | RA: 282.16 mas/yr |
Parallax (π) | 127.84 ± 2.19mas |
Distance | 25.5 ± 0.4 ly (7.8 ± 0.1 pc) |
Absolute magnitude (MV) | 6.25 / 6.35 |
Orbit | |
Companion | p Eridani B |
Period (P) | 483.66 yr |
Semimajor axis (a) | 7.817" |
Eccentricity (e) | 0.5344 |
Inclination (i) | 142.824° |
Longitude of the node (Ω) | 13.116° |
Periastron epoch (T) | 1813.494 |
Details | |
Metallicity [Fe/H] | –0.23dex |
Rotation | 30 days |
Age | 4.8Gyr |
Other designations | |
Gliese 66, HR 487, CD -56°328, HD 10360/1, LTT 902, GCTP 352.00, SAO 232490, CP(D)-56 329, WDS 01398-5612, Dunlop 5, HIP 7751.
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