39 Oph
Observable Double Star
Excellent (73/100)
Sep: 10.7", Companion: mag 6.6
HIP 84626; 39 Oph
DoubleStar
Oph
Visible
Level 1
Naked eye / Binoculars - Requires steady seeing
Physical Properties
Magnitude
5.20
Spectral Type
K0II-III
Star Color
Orange
(B-V 1.10)
Distance
250.9 ly
Position & Identifiers
RA
17h 18m 00.7s
Dec
-24° 17' 13.0"
Constellation
Oph
HR
6424
HIP
84626
Flamsteed
39 Oph
Double Cat
10442
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Visibility
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Multiple Star System
Separation
10.7″
Companion Mag
6.6
Companion Sp
F6IV
Position Angle
355°
Star Colors
A: Orange
B: Yellow
Discoverer
H 3 25
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 10.7″ · PA: 355° · 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 6425.
0.004".
Survey Image
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