HIP 103371
HIP 103371
DoubleStar
Cyg
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
5.96
Spectral Type
O6V((f))
Star Color
White
(B-V 0.05)
Position & Identifiers
RA
20h 56m 34.7s
Dec
+44° 55' 30.0"
Constellation
Cyg
HR
8023
HIP
103371
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Visibility
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Multiple Star System
Separation
3.8″
Companion Mag
16.0
Companion Sp
B1/
Position Angle
30°
Star Colors
A: White
B: Blue
Discoverer
TRN 30
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 3.8″ · PA: 30° · 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
48.608d, K 42.2k/s, V0 -5.8k/s, asini 28.1.
Color excess E(B-V) = +0.36.
Cyg OB7; NGC 7000; exciting star of HII region S117.
Also classified O6.5III.
Survey Image
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