64 Aquarii

Short description: Star in the constellation Aquarius

64 Aquarii  Observation data
Equinox J2000.0]] (ICRS)

Constellation | Aquarius
Right ascension |  22h 39m 16.03872s[1]
Declination | −10° 01′ 40.1750″[1]
Apparent magnitude (V) | 6.93[2]
Characteristics
Spectral type | G2/3 IV/V[3]
B−V color index | 0.619±0.009[2]
Astrometry
Radial velocity (Rv)| +10.7±0.5[4] km/s
Proper motion (μ)|  RA: −60.940[1] mas/yr
Dec.: +3.803[1] mas/yr
Parallax (π)| 10.4508 ± 0.1554[1] mas
Distance| 312 ± 5 ly
(96 ± 1 pc)
Absolute magnitude (MV)| 2.75[2]
Details[5]
Mass| 1.45±0.06 M☉
Radius| 2.78±0.07 R☉
Luminosity| 13.133±0.225[1] L☉
Surface gravity (log g)| 3.708±0.013 cgs
Temperature| 5,926±97 K
Metallicity [Fe/H]| −0.02±0.11 dex
Rotational velocity (v sin i)| 8.75 km/s
Age| 2.63±0.26 Gyr
Other designations

BD−10° 5963, GC 31614, HD 214572, HIP 111843, SAO 165217[6]

Database references
SIMBAD| data

64 Aquarii is a star located 312 light years away from the Sun in the zodiac constellation of Aquarius. 64 Aquarii is its Flamsteed designation. With an apparent visual magnitude of 6.93,[2] it is too faint to be readily visible to the naked eye. The star is moving further from the Earth with a heliocentric radial velocity of +11 km/s.[4]

The stellar classification for this star is G2/3 IV/V,[3] which indicates the spectrum displays mixed traits of a G-type main-sequence star and a more evolved subgiant star. It is 2.6 billion years old and is spinning with a projected rotational velocity of 8.75 km/s. The star has 1.45 times the mass of the Sun and 2.8 times the Sun's radius.[5] It is radiating 13[1] times the luminosity of the Sun from its photosphere at an effective temperature of 5,926 K.[5]

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
2. ↑ 2.0 2.1 2.2 2.3 Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters 38 (5): 331, doi:10.1134/S1063773712050015, Bibcode: 2012AstL...38..331A.
3. ↑ 3.0 3.1 Houk, N.; Swift, C. (1999), "Michigan catalogue of two-dimensional spectral types for the HD Stars", Michigan Spectral Survey 5, Bibcode: 1999MSS...C05....0H.
4. ↑ 4.0 4.1 Gontcharov, G. A. (November 2006), "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system", Astronomy Letters 32 (11): 759–771, doi:10.1134/S1063773706110065, Bibcode: 2006AstL...32..759G.
5. ↑ 5.0 5.1 5.2 Lund, Mikkel N. et al. (December 2016), "Asteroseismic Properties of Solar-type Stars Observed with the NASA K2 Mission: Results from Campaigns 1-3 and Prospects for Future Observations", Publications of the Astronomical Society of the Pacific 128 (970): 124204, doi:10.1088/1538-3873/128/970/124204, Bibcode: 2016PASP..128l4204L.
6. ↑ "64 Aqr". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=64+Aqr.

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* t
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Constellation of Aquarius

* Aquarius in Chinese astronomy
* Aquarius Stream
* List of stars in Aquarius

Stars|

| Bayer|

* α
* β
* γ
* δ
* ε
* ζ
* η
* θ
* ι
* κ
* λ
* μ
* ν
* ξ
* ο
* π
* ρ
* σ
* τ1
* τ2
* υ
* φ
* χ
* ψ2
* ψ3
* ω1
* ω2

|

Flamsteed|

* 1
* 3
* 4
* 5
* 7
* 8
* 9
* 10
* 11
* 12
* 14
* 15
* 16
* 17
* 18
* 19
* 20
* 21
* 24
* 25
* 26
* 28
* 29
* 30
* 32
* 35
* 36
* 37
* 38
* 39
* 40
* 41
* 42
* 44
* 45
* 47
* 49
* 50
* 51
* 53
* 54
* 56
* 58
* 60
* 61
* 64
* 65
* 66
* 67
* 68
* 70
* 72
* 74
* 75
* 77
* 78
* 81
* 82
* 83
* 84
* 85
* 86
* 87
* 88
* 89
* 91
* 94
* 96
* 97
* 98
* 99
* 100
* 101
* 103
* 104
* 106
* 107
* 108

Variable|

* R
* U
* AE
* DV
* EW
* EZ
* FO
* HK
* HU
* IZ
* LP

HD|

* 199442
* 200375
* 202259
* 205765
* 208177
* 210277
* 210434
* 211392
* 211575
* 213429
* 214448
* 214810
* 215114
* 215152
* 216718
* 218061
* 219279
* 220035
* 220466
* 220689
* 220766
* 221148
* 222093
* 222582
* 223311

Other|

* 2MASS J21392676+0220226
* BD−22 5866
* Fomalhaut C
* Gliese 849
* Gliese 876
* K2-28
* K2-72
* K2-138
* LS IV-14 116
* Sneden's Star
* TRAPPIST-1
* WASP-6
* WASP-47

| Exoplanets|

* 91 Aquarii b
* Gliese 849 b
* Gliese 876 b
* c
* d
* e
* HD 206610 b
* HD 210277 b
* HD 212771 b
* HD 222582 b
* K2-21b
* c
* K2-72b
* c
* d
* e
* K2-138b
* TRAPPIST-1b
* c
* d
* e
* f
* g
* h
* WASP-6b

|

| Star clusters|

* Messier 2
* Messier 72
* Messier 73

|

| Nebulae|

* Helix
* Saturn

|

Galaxies|

| NGC|

* 6975
* 7001
* 7010
* 7047
* 7051
* 7065
* 7069
* 7077
* 7081
* 7184
* 7252
* 7257
* 7301
* 7302
* 7600
* 7606
* 7723
* 7727
* 7759

|

Other|

* Aquarius Dwarf
* Lyman-alpha blob 1
* SMM J2135-0102
* WISE J224607.57−052635.0

| Galaxy clusters|

* Abell 2597
* XMMXCS 2215-1738

|

| Astronomical events|

* SN 2213-1745

|

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