Epsilon Mon
Observable Double Star
Excellent (61/100)
Sep: 12.1", Companion: mag 6.6
HIP 30419; Epsilon Mon; 8 Mon
DoubleStar
Mon
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
4.44
Spectral Type
A5IV
Star Color
Yellow-white
(B-V 0.18)
Distance
130.5 ly
Position & Identifiers
RA
06h 23m 46.1s
Dec
+04° 35' 34.0"
Constellation
Mon
HR
2298
HIP
30419
Bayer
Epsilon
Flamsteed
8 Mon
Double Cat
5012
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
12.1″
Companion Mag
6.6
Companion Sp
F5V
Position Angle
29°
Star Colors
A: Yellow-white
B: Yellow-white
Discoverer
STF 900
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 12.1″ · PA: 29° · 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
Binary with HR 2299. Combined light 4.30V, +0.21(B-V). Component C, 12.2v at 93".
331d? Unresolved by speckle interferometry.
Survey Image
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