Epsilon CrB
HIP 78159; Epsilon CrB; 13 CrB
DoubleStar
CrB
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
4.15
Spectral Type
K2IIIab
Star Color
Red
(B-V 1.23)
Distance
135.9 ly
Position & Identifiers
RA
15h 57m 35.3s
Dec
+26° 52' 40.0"
Constellation
CrB
HR
5947
HIP
78159
Bayer
Epsilon
Flamsteed
13 CrB
Double Cat
9859
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Visibility
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Multiple Star System
Components
3
Component IDs
AC
Separation
2.0″
Companion Mag
12.6
Position Angle
13°
Star Colors
A: Red
Discoverer
AGC 7
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 2.0″ · PA: 13° · 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
Component B, 12.6v at 2", CPM.
Survey Image
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