Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aquarius |
Right ascension | 22h 43m 35.23307s [1] |
Declination | –18° 49′ 49.3557″ [1] |
Apparent magnitude (V) | 4.673 [2] |
Characteristics | |
Spectral type | K3 III [3] |
U−B color index | +1.549 [2] |
B−V color index | +1.376 [2] |
Variable type | suspected [4] |
Astrometry | |
Radial velocity (Rv) | +21.6 [5] km/s |
Proper motion (μ) |
RA: –31.73
[1]
mas/
yr Dec.: –28.54 [1] mas/ yr |
Parallax (π) | 7.53 ± 0.26 mas [1] |
Distance | 430 ± 10
ly (133 ± 5 pc) |
Absolute magnitude (MV) | −0.93 [6] |
Details | |
Radius | 37 [7] R☉ |
Luminosity | 434.08 [6] L☉ |
Surface gravity (log g) | 2.06 [8] cgs |
Temperature | 4,170 [8] K |
Metallicity [Fe/H] | –0.23 [8] dex |
Rotational velocity (v sin i) | 10 [9] km/s |
Other designations | |
Database references | |
SIMBAD | data |
66 Aquarii is a single [11] star in the equatorial constellation of Aquarius. 66 Aquarii is the Flamsteed designation though the star also bears the Bayer designation of g1 Aquarii. [12] It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.673. [2] Based upon an annual parallax shift of 7.53 milliarcseconds, [1] the distance to this star is about 430 light-years (130 parsecs).
This is an evolved giant star with a stellar classification of K3 III. [3] It has expanded to 37 times the radius of the Sun [7] and is radiating 434 [6] times the luminosity of the Sun from its outer envelope at an effective temperature of 4,170 K. [8] This gives it the orange-hued glow of a K-type star. [13] It is a suspected variable star that ranges in magnitude between 4.66 and 4.71. [4]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aquarius |
Right ascension | 22h 43m 35.23307s [1] |
Declination | –18° 49′ 49.3557″ [1] |
Apparent magnitude (V) | 4.673 [2] |
Characteristics | |
Spectral type | K3 III [3] |
U−B color index | +1.549 [2] |
B−V color index | +1.376 [2] |
Variable type | suspected [4] |
Astrometry | |
Radial velocity (Rv) | +21.6 [5] km/s |
Proper motion (μ) |
RA: –31.73
[1]
mas/
yr Dec.: –28.54 [1] mas/ yr |
Parallax (π) | 7.53 ± 0.26 mas [1] |
Distance | 430 ± 10
ly (133 ± 5 pc) |
Absolute magnitude (MV) | −0.93 [6] |
Details | |
Radius | 37 [7] R☉ |
Luminosity | 434.08 [6] L☉ |
Surface gravity (log g) | 2.06 [8] cgs |
Temperature | 4,170 [8] K |
Metallicity [Fe/H] | –0.23 [8] dex |
Rotational velocity (v sin i) | 10 [9] km/s |
Other designations | |
Database references | |
SIMBAD | data |
66 Aquarii is a single [11] star in the equatorial constellation of Aquarius. 66 Aquarii is the Flamsteed designation though the star also bears the Bayer designation of g1 Aquarii. [12] It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.673. [2] Based upon an annual parallax shift of 7.53 milliarcseconds, [1] the distance to this star is about 430 light-years (130 parsecs).
This is an evolved giant star with a stellar classification of K3 III. [3] It has expanded to 37 times the radius of the Sun [7] and is radiating 434 [6] times the luminosity of the Sun from its outer envelope at an effective temperature of 4,170 K. [8] This gives it the orange-hued glow of a K-type star. [13] It is a suspected variable star that ranges in magnitude between 4.66 and 4.71. [4]