Epsilon Ari
HIP 13914; Epsilon Ari; 48 Ari
Observable Double Star
Fair (30/100)
Sep: 1.3", Companion: mag 5.6
HIP 13914; Epsilon Ari; 48 Ari
DoubleStar
Ari
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
4.63
Spectral Type
A2V s
Star Color
White
(B-V 0.04)
Distance
652.3 ly
Position & Identifiers
RA
02h 59m 12.7s
Dec
+21° 20' 25.0"
Constellation
Ari
HR
887
HIP
13914
Bayer
Epsilon
Flamsteed
48 Ari
Double Cat
2257
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
1.3″
Companion Mag
5.6
Companion Sp
A2Vs
Position Angle
211°
Star Colors
A: White
B: White
Discoverer
STF 333
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 1.3″ · PA: 211° · 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
Uncertain if HR 887 or 888 is the variable suspect.
Binary with HR 888. Mag. and colors for combined light.
0.012".
Survey Image
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