30 Leonis Minoris is a single[11] star in the northern constellation of Leo Minor. It is visible to the naked eye as a faint, white-hued point of light with an apparent visual magnitude of 4.72.[2] The distance to this star, as estimated from parallax measurements, is 233 light years.[1] It is drifting away from the Earth with a heliocentric radial velocity of +13.7 km/s.[6]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Leo Minor |
Right ascension | 10h 25m 54.81535s[1] |
Declination | 33° 47′ 46.0309″[1] |
Apparent magnitude (V) | 4.72[2] |
Characteristics | |
Spectral type | kF0hF2mF2[3] or A9IIIa[4] |
U−B color index | +0.18[5] |
B−V color index | +0.25[5] |
Astrometry | |
Radial velocity (Rv) | +13.70[6] km/s |
Proper motion (μ) | RA: -73.66[1] mas/yr Dec.: -59.21[1] mas/yr |
Parallax (π) | 13.98 ± 0.21 mas[1] |
Distance | 233 ± 4 ly (72 ± 1 pc) |
Absolute magnitude (MV) | 0.45[2] |
Details | |
Mass | 2.28[7] M☉ |
Radius | 4.182[8] R☉ |
Luminosity | 58[7] L☉ |
Surface gravity (log g) | 3.82[9] cgs |
Temperature | 7,292[9] K |
Metallicity [Fe/H] | +0.19[9] dex |
Rotational velocity (v sin i) | 34[7] km/s |
Other designations | |
Database references | |
SIMBAD | data |
This object has been catalogued as an Am star[12] and was given a stellar classification of kF0hF2mF2[3] by Abt and Morrell (1995). This notation indicates the calcium K line matches an F0 star, while the hydrogen and metal lines fit an F2 star. However, Gray et al. (2001) assigned it a class of A9IIIa,[4] matching an A-type giant star.
30 Leonis Minoris has 2.3[7] times the mass of the Sun and 4.2[8] times the Sun's radius. It has a moderate rate of spin, showing a projected rotational velocity of 34 km/s.[7] The star is radiating 58[7] times the Sun's luminosity from its photosphere at an effective temperature of 7,292 K.[9]