12 Aqr
Observable Double Star
Good (56/100)
Sep: 2.4", Companion: mag 7.5
HIP 103981; 12 Aqr
DoubleStar
Aqr
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
5.89
Spectral Type
G4III
Star Color
Orange
(B-V 0.68)
Distance
1087.2 ly
Position & Identifiers
RA
21h 04m 04.7s
Dec
-05° 49' 23.0"
Constellation
Aqr
HR
8059
HIP
103981
Flamsteed
12 Aqr
Double Cat
14592
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Visibility
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Multiple Star System
Components
3
Separation
2.4″
Companion Mag
7.5
Position Angle
198°
Star Colors
A: Orange
B: Orange
Discoverer
STF2745
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 2.4″ · PA: 198° · 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 Notes
CPM with HR 8058. Colors for combined light. Mag. for blend 5.54V. Measured sep. Aa 1985.5 0.045" by speckle | interferometry.
Survey Image
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