87 Leonis
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Leo |
| Right ascension | 11h 30m 18.8934s[1] |
| Declination | −03° 00′ 12.602″[1] |
| Apparent magnitude (V) | 4.771[1] |
| Characteristics | |
| Spectral type | K3.5III[1] |
| U−B color index | +1.83[2] |
| B−V color index | +1.54[2] |
| R−I color index | +0.84[2] |
| Astrometry | |
| Radial velocity (Rv) | 18.8 ± 0.9[1] km/s |
| Proper motion (μ) | RA: 19.78[1] mas/yr Dec.: −17.14[1] mas/yr |
| Parallax (π) | 5.40 ± 0.99[1] mas |
| Distance | approx. 600 ly (approx. 190 pc) |
| Absolute magnitude (MV) | −1.6[3] |
| Details | |
| Radius | 37[4] R☉ |
| Rotational velocity (v sin i) | ≤ 19[2] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
87 Leonis (87 Leo) is a K-type giant star in the constellation of Leo.[1] It is visible by the naked eye, with an apparent visual magnitude of approximately 4.771, and is approximately 600 light years away from the Earth.[1]
References
- 1 2 3 4 5 6 7 8 9 10 11 * e Leo -- Star, database entry, SIMBAD. Accessed on line November 8, 2010.
- 1 2 3 4 HR 4432, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line November 8, 2010.
- ↑ From apparent magnitude and parallax.
- ↑ HD 99998, database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID II/224. Accessed on line November 8, 2010.
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