20 Leonis Minoris
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| Observation data Epoch J2000 |
|
|---|---|
| Constellation (pronunciation) |
Leo Minor |
| Right ascension | 10h 01m 00.(6)s |
| Declination | +31° 55' 25.205" |
| Apparent magnitude (V) | 5.40 |
| Characteristics | |
| Spectral type | G3 Va/M6.5 |
| U-B color index | 0.27 |
| B-V color index | 0.65 |
| Variable type | ? |
| Astrometry | |
| Radial velocity (Rv) | +56.0 km/s |
| Proper motion (μ) | RA: -529.18 mas/yr Dec.: -428.91 mas/yr |
| Parallax (π) | 67.14 ± 0.83 mas |
| Distance | 48.6 ± 0.6 ly (14.9 ± 0.2 pc) |
| Absolute magnitude (MV) | 4.53 |
| Other designations | |
20 Leonis Minoris is a binary star system in the constellation Leo Minor. It has a relatively high proper motion. The companion is an old, active red dwarf star that has a relatively high metallicity.[1] The two stars are currently separated by 14.5 arc seconds.
[edit] References
- ^ J.E. Gizis, D.G. Monet, I.N. Reid, J.D. Kirkpatrick, A.J. Burgasser (2000). "Two Nearby M Dwarf Binaries from 2MASS" (abstract page). Monthly Notices of the Royal Astronomical Society 311 (2): 385. doi:.
[edit] External links
- HD 86728 -- High proper-motion Star (English). Simbad. Retrieved on 2006-07-31.
- 4C00774 (English). ARICNS. Retrieved on 2006-07-31.
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