72 Oph
HIP 88771; 72 Oph
DoubleStar
Oph
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
3.73
Spectral Type
A5V
Star Color
White
(B-V 0.12)
Distance
86.9 ly
Position & Identifiers
RA
18h 07m 21.0s
Dec
+09° 33' 50.0"
Constellation
Oph
HR
6771
HIP
88771
Flamsteed
72 Oph
Double Cat
11076
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Visibility
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Multiple Star System
Components
4
Component IDs
AD
Separation
25.0″
Companion Mag
13.9
Position Angle
298°
Star Colors
A: White
B: Orange
Discoverer
STT 342
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 25.0″ · PA: 298° · 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
Discordance in designations of components between ADS and IDS. We accept IDS. Component B, in notes to ADS 11076 not | assigned letter: doubtful, sep. 0.1" if real. C, 14v at 25" CPM. D = ADS C, 11v at 54" optical.
Survey Image
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