Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aquarius |
Right ascension | 22h 12m 25.76398s [1] |
Declination | −14° 11′ 38.3009″ [1] |
Apparent magnitude (V) | 6.03 [2] |
Characteristics | |
Spectral type | F0 V [3] |
U−B color index | +0.00 [4] |
B−V color index | +0.38 [2] |
Astrometry | |
Radial velocity (Rv) | +15.2 [5] km/s |
Proper motion (μ) |
RA: +23.89
[6]
mas/
yr Dec.: -47.43 [6] mas/ yr |
Parallax (π) | 22.5378 ± 0.1723 mas [1] |
Distance | 145 ± 1
ly (44.4 ± 0.3 pc) |
Absolute magnitude (MV) | 2.92 [7] |
Details | |
Mass | 1.35 [8] M☉ |
Radius | 1.79+0.04 −0.10 [1] R☉ |
Luminosity | 6.109±0.054 [1] L☉ |
Surface gravity (log g) | 3.99 [3] cgs |
Temperature | 6,806 [3] K |
Metallicity [Fe/H] | –0.21 [3] dex |
Age | 1.8 [7] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
39 Aquarii is a star in the zodiac constellation of Aquarius. 39 Aquarii is its Flamsteed designation. It is a faint naked eye star with an apparent visual magnitude of 6.03. [2] Based upon an annual parallax shift of 23.78 measured with a 3% margin of error, [6] this star is at a distance of around 137 light-years (42 parsecs) from Earth. It is a double star with a magnitude 9.3 companion at an angular separation of 0.6 arcseconds along a position angle of 257°. [9]
The stellar classification of this star is F0 V; [3] hence it belongs to the category of F-type main sequence stars that generate energy through hydrogen fusion at the core. It is 1.8 [7] billion years old with 1.35 [8] times the mass of the Sun and 1.79 [1] times the Sun's radius. The star is radiating 6.1 [1] times the luminosity of the Sun from its photosphere at an effective temperature of 6,806 K. [3]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aquarius |
Right ascension | 22h 12m 25.76398s [1] |
Declination | −14° 11′ 38.3009″ [1] |
Apparent magnitude (V) | 6.03 [2] |
Characteristics | |
Spectral type | F0 V [3] |
U−B color index | +0.00 [4] |
B−V color index | +0.38 [2] |
Astrometry | |
Radial velocity (Rv) | +15.2 [5] km/s |
Proper motion (μ) |
RA: +23.89
[6]
mas/
yr Dec.: -47.43 [6] mas/ yr |
Parallax (π) | 22.5378 ± 0.1723 mas [1] |
Distance | 145 ± 1
ly (44.4 ± 0.3 pc) |
Absolute magnitude (MV) | 2.92 [7] |
Details | |
Mass | 1.35 [8] M☉ |
Radius | 1.79+0.04 −0.10 [1] R☉ |
Luminosity | 6.109±0.054 [1] L☉ |
Surface gravity (log g) | 3.99 [3] cgs |
Temperature | 6,806 [3] K |
Metallicity [Fe/H] | –0.21 [3] dex |
Age | 1.8 [7] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
39 Aquarii is a star in the zodiac constellation of Aquarius. 39 Aquarii is its Flamsteed designation. It is a faint naked eye star with an apparent visual magnitude of 6.03. [2] Based upon an annual parallax shift of 23.78 measured with a 3% margin of error, [6] this star is at a distance of around 137 light-years (42 parsecs) from Earth. It is a double star with a magnitude 9.3 companion at an angular separation of 0.6 arcseconds along a position angle of 257°. [9]
The stellar classification of this star is F0 V; [3] hence it belongs to the category of F-type main sequence stars that generate energy through hydrogen fusion at the core. It is 1.8 [7] billion years old with 1.35 [8] times the mass of the Sun and 1.79 [1] times the Sun's radius. The star is radiating 6.1 [1] times the luminosity of the Sun from its photosphere at an effective temperature of 6,806 K. [3]