- Chi Aquarii
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χ Aquarii Observation data
Epoch J2000 Equinox J2000Constellation Aquarius Right ascension 23h 16m 50.9395s Declination −07° 43′ 35.413″ Apparent magnitude (V) 5.01 Characteristics Spectral type M3III U−B color index 1.6 B−V color index 1.6 Variable type Variable star Astrometry Radial velocity (Rv) -15.1 km/s Proper motion (μ) RA: -18.66 mas/yr
Dec.: -15.43 mas/yrParallax (π) 5.09 ± 0.96 mas Distance approx. 600 ly
(approx. 200 pc)Absolute magnitude (MV) 6.56 Details Mass 0,4 M☉ Radius 0,5 R☉ Luminosity 0,04 L☉ Temperature 2,000–3,500 K Metallicity ? Rotation ? Age ? years Other designations Database references SIMBAD data Data sources: Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)Chi Aquarii (χ Aqr, χ Aquarii) is a star in the constellation Aquarius.
Chi Aquarii is a M-type red giant with a mean apparent magnitude of +4.93. It is approximately 640 light years from Earth. It is classified as an irregular variable star and its brightness varies from magnitude +4.90 to +5.06.
Aquarius Constellation
References
Stars of Aquarius Bayer Flamsteed 1 • 2 (ε, Albali) • 3 • 4 • 5 • 6 (μ) • 7 • 8 • 9 • 10 • 11 • 12 • 13 (ν) • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 (β, Sadalsuud) • 23 (ξ, Bunda) • 24 • 25 • 26 • 28 • 29 • 30 • 31 (ο) • 32 • 33 (ι) • 34 (α, Sadalmelik) • 35 • 36 • 37 • 38 • 39 • 40 • 41 • 42 • 43 (θ, Ancha) • 44 • 45 • 46 (ρ) • 47 • 48 (γ, Sadachbia) • 49 • 50 • 51 • 52 (π, Seat) • 53 • 54 • 55 (ζ) • 56 • 57 (σ) • 58 • 59 (υ) • 60 • 61 • 62 (η) • 63 (κ, Situla) • 64 • 65 • 66 • 67 • 68 • 69 (τ1) • 70 • 71 (τ2) • 72 • 73 (λ) • 74 • 75 • 76 (δ, Skat) • 77 • 78 • 80 • 82 • 83 • 85 • 86 • 87 • 88 • 89 • 90 (φ) • 91 (ψ1) • 92 (χ) • 93 (ψ2) • 94 • 95 (ψ3) • 96 • 97 • 98 • 99 • 100 • 101 • 102 (ω1) • 103 • 104 • 105 (ω2) • 106 • 107 • 108List Categories:- Henry Draper Catalogue objects
- Bayer objects
- Aquarius constellation
- Irregular variables
- M-type giants
- Flamsteed objects
- Star stubs
- Variable star stubs
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