Epsilon Equ
HIP 103569; Epsilon Equ; 1 Equ
DoubleStar
Equ
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
5.23
Spectral Type
F6IV
Star Color
Yellow
(B-V 0.46)
Distance
155.3 ly
Position & Identifiers
RA
20h 59m 04.4s
Dec
+04° 17' 37.0"
Constellation
Equ
HR
8034
HIP
103569
Bayer
Epsilon
Flamsteed
1 Equ
Double Cat
14499
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Visibility
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Multiple Star System
Components
4
Component IDs
AB
Separation
0.1″
Companion Mag
6.3
Companion Sp
dF4
Position Angle
109°
Star Colors
A: Yellow
B: Yellow-white
Discoverer
STF2737
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.1″ · PA: 109° · 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
AB 6.0 F5IV, 6.3 F7IV, 101.485y, a = 0.647". Combined mag., colors. Component C, 7.2v G0V at 11", CPM.
2.0313d, K 15.8k/s, V0 +7.8k/s, asini 0.435.
0.020".
Survey Image
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