Ran
HIP 16537; Epsilon Eri; 18 Eri
HIP 16537; Epsilon Eri; 18 Eri
DoubleStar
Eri
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
3.73
Spectral Type
K2V (k)
Star Color
Orange
(B-V 0.88)
Distance
10.8 ly
Position & Identifiers
RA
03h 32m 55.8s
Dec
-09° 27' 30.0"
Constellation
Eri
HR
1084
HIP
16537
Bayer
Epsilon
Flamsteed
18 Eri
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Visibility
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Multiple Star System
Separation
15.0″
Companion Mag
17.3
Position Angle
339°
Star Colors
A: Orange
Discoverer
MBA 1
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 15.0″ · PA: 339° · N up, E left
Resolved · 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
Astrometric binary, 25y. Unresolved by speckle interferometry.
Survey Image
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