55 Eri
HIP 21986; 55 Eri
DoubleStar
Eri
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
6.70
Spectral Type
G8III
Star Color
Orange
(B-V 0.92)
Distance
407.7 ly
Position & Identifiers
RA
04h 43m 35.1s
Dec
-08° 47' 46.0"
Constellation
Eri
HR
1506
HIP
21986
Flamsteed
55 Eri
Double Cat
3409
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Visibility
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Multiple Star System
Separation
9.3″
Companion Mag
6.8
Position Angle
318°
Star Colors
A: Orange
B: Yellow-white
Discoverer
STF 590
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 9.3″ · PA: 318° · 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
CPM with HR 1505.
Survey Image
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