Zeta Aqr
HIP 110960; Zeta2 Aqr; 55 Aqr
HIP 110960; Zeta2 Aqr; 55 Aqr
DoubleStar
Aquarius
(Aqr)
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
4.42
Spectral Type
F3V
Star Color
Yellow-white
(B-V 0.38)
Distance
148 ly
Position & Identifiers
RA
22h 28m 50.1s
Dec
-00° 01' 12.0"
Constellation
Aquarius
(Aqr)
HR
8559
HIP
110960
Bayer
Zeta2
Flamsteed
55 Aqr
Double Cat
15971
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Visibility
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Multiple Star System
Components
3
Separation
1.8″
Companion Mag
11.3
Position Angle
154°
Star Colors
A: Yellow-white
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 1.8″ · PA: 154° · N up, E left
Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
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Stellar Fusion
Stellar Notes
Binary with HR 8558. AB 4.31 F2IV, 4.51 F3IV, 856.0y, a = 5.055". Magnitude for blend 3.65V, combined colors. | Component B, HR 8558, is an astrometric binary.
0.039".
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