Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Leo Minor |
Right ascension | 11h 01m 49.67462s [1] |
Declination | −02° 29′ 04.5007″ [1] |
Apparent magnitude (V) | 4.68 [2] |
Characteristics | |
Spectral type | G2.5 IIa [3] |
B−V color index | 0.823±0.008 [2] |
Astrometry | |
Radial velocity (Rv) | −8.0±0.3 [2] km/s |
Proper motion (μ) |
RA: +9.76
[1]
mas/
yr Dec.: −35.56 [1] mas/ yr |
Parallax (π) | 5.58 ± 0.24 mas [1] |
Distance | 580 ± 30
ly (179 ± 8 pc) |
Absolute magnitude (MV) | −1.84 [4] |
Details | |
Mass | 3.72 [5] M☉ |
Radius | 31 [6] R☉ |
Luminosity | 438.33 [2] L☉ |
Surface gravity (log g) | 2.22 [5] cgs |
Temperature | 5,468 [5] K |
Metallicity [Fe/H] | 0.03 [5] dex |
Rotational velocity (v sin i) | 6.4 [7] km/s |
Age | 200 [7] Myr |
Other designations | |
Database references | |
SIMBAD | data |
37 Leonis Minoris is a single, [9] yellow-hued star in the northern constellation of Leo Minor. It is faintly visible to the naked eye with an apparent visual magnitude of 4.68. [2] The star is moving closer to the Sun with a heliocentric radial velocity of −8 km/s. [2] The annual parallax shift of 5.58±0.24 mas [1] provides a distance estimate of roughly 580 light years.
The Bright Star Catalogue lists this star with a stellar classification of G2.5 IIa, [3] indicating it is an evolved G-type bright giant. Gray et al. (2001) gave it a class of G1 II, [10] while Keenan and McNeil (1989) assigned this star to the giant class G2.5 IIIa. [11] It has an estimated 3.72 [5] times the mass of the Sun and about 31 [6] times the Sun's radius. The star is around 200 [7] million years old with a projected rotational velocity of 6.4 km/s. [7] It is radiating about 438 [2] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 5,468 K. [5]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Leo Minor |
Right ascension | 11h 01m 49.67462s [1] |
Declination | −02° 29′ 04.5007″ [1] |
Apparent magnitude (V) | 4.68 [2] |
Characteristics | |
Spectral type | G2.5 IIa [3] |
B−V color index | 0.823±0.008 [2] |
Astrometry | |
Radial velocity (Rv) | −8.0±0.3 [2] km/s |
Proper motion (μ) |
RA: +9.76
[1]
mas/
yr Dec.: −35.56 [1] mas/ yr |
Parallax (π) | 5.58 ± 0.24 mas [1] |
Distance | 580 ± 30
ly (179 ± 8 pc) |
Absolute magnitude (MV) | −1.84 [4] |
Details | |
Mass | 3.72 [5] M☉ |
Radius | 31 [6] R☉ |
Luminosity | 438.33 [2] L☉ |
Surface gravity (log g) | 2.22 [5] cgs |
Temperature | 5,468 [5] K |
Metallicity [Fe/H] | 0.03 [5] dex |
Rotational velocity (v sin i) | 6.4 [7] km/s |
Age | 200 [7] Myr |
Other designations | |
Database references | |
SIMBAD | data |
37 Leonis Minoris is a single, [9] yellow-hued star in the northern constellation of Leo Minor. It is faintly visible to the naked eye with an apparent visual magnitude of 4.68. [2] The star is moving closer to the Sun with a heliocentric radial velocity of −8 km/s. [2] The annual parallax shift of 5.58±0.24 mas [1] provides a distance estimate of roughly 580 light years.
The Bright Star Catalogue lists this star with a stellar classification of G2.5 IIa, [3] indicating it is an evolved G-type bright giant. Gray et al. (2001) gave it a class of G1 II, [10] while Keenan and McNeil (1989) assigned this star to the giant class G2.5 IIIa. [11] It has an estimated 3.72 [5] times the mass of the Sun and about 31 [6] times the Sun's radius. The star is around 200 [7] million years old with a projected rotational velocity of 6.4 km/s. [7] It is radiating about 438 [2] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 5,468 K. [5]