54 Leonis
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Leo |
| Right ascension | 10h 55m 36.823s |
| Declination | +24° 44′ 59.28″ |
| Apparent magnitude (V) | 4.50 |
| Characteristics | |
| Spectral type | A1V + A2V n |
| Astrometry | |
| Distance | 290 ly (88.9 pc) |
| Absolute magnitude (MV) | –0.29[1] |
| Other designations | |
54 Leo, BD+25 2314, CCDM J10556+2445, HIP 53417, Struve 1487 | |
| 54 Leo A: HD 94601, HR 4259, SAO 81583 | |
| 54 Leo B: HD 94602, HR 4260, SAO 81584 | |
| Database references | |
| SIMBAD | data |
54 Leonis A/B is a binary star in the Leo constellation. It is located about 290 lightyears or 89 parsecs from the Earth.
This star has 2.59 times the mass of the Sun, with a projected rotational velocity of 182 km s−1.[1] Asteroid 729 Watsonia Occults HIP 53417 2013 Mar 03 01:48.
References
- 1 2 Pizzolato, N.; Maggio, A.; Sciortino, S. (September 2000), "Evolution of X-ray activity of 1-3 Msun late-type stars in early post-main-sequence phases", Astronomy and Astrophysics, 361: 614–628, Bibcode:2000A&A...361..614P
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