51 Aqr
HIP 110578; 51 Aqr
DoubleStar
Aqr
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
5.78
Spectral Type
A0V
Star Color
Blue-white
(B-V -0.04)
Distance
544 ly
Position & Identifiers
RA
22h 24m 06.9s
Dec
-04° 50' 13.0"
Constellation
Aqr
HR
8533
HIP
110578
Flamsteed
51 Aqr
Double Cat
15902
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Visibility
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Multiple Star System
Components
5
Component IDs
AB
Separation
0.5″
Companion Mag
6.6
Position Angle
24°
Star Colors
A: Blue-white
B: White
Discoverer
BU 172
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.5″ · PA: 24° · N up, E left
Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Fusion
Stellar Notes
AB 6.6 A0, 6.6, 190y, a = 0.490". Measured sep. 0.121" on 1985.5 by speckle interferometry.
Survey Image
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