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 |
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]
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]
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 |
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]
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]