Yed Posterior
HIP 79882; Epsilon Oph; 2 Oph
HIP 79882; Epsilon Oph; 2 Oph
DoubleStar
Oph
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
3.24
Spectral Type
G9.5IIIb Fe-0.5
Star Color
Orange
(B-V 0.96)
Distance
106.5 ly
Position & Identifiers
RA
16h 18m 19.3s
Dec
-04° 41' 33.0"
Constellation
Oph
HR
6075
HIP
79882
Bayer
Epsilon
Flamsteed
2 Oph
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Visibility
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Multiple Star System
Separation
120.2″
Companion Mag
12.3
Position Angle
246°
Star Colors
A: Orange
Discoverer
BU 1452
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 120.2″ · PA: 246° · 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
Oxygen deficient relative to magnesium.
Yed Posterior.
Survey Image
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