HIP 106886
HIP 106886
DoubleStar
Cep
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
5.62
Spectral Type
O6.5V((f))
Star Color
Yellow-white
(B-V 0.21)
Position & Identifiers
RA
21h 38m 57.6s
Dec
+57° 29' 21.0"
Constellation
Cep
HR
8281
HIP
106886
Double Cat
15184
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Visibility
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Multiple Star System
Components
5
Component IDs
AC
Separation
1.8″
Companion Mag
13.3
Companion Sp
O9V
Position Angle
319°
Star Colors
A: Yellow-white
B: Blue
Discoverer
BU 1143
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 1.8″ · PA: 319° · N up, E left
Unresolved · 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
AC fixed. C, 8.05V, +0.23(B-V), -0.68(U-B), B1.5V at 12", vsini 80k/s. AD also fixed. D, 8.03V, +0.20(B-V), -0.72(U-B), | B2IV at 20", vsini 270k/s. In earlier sources C is brighter than D.
ADS 15184A, 3.7098d, K1 103.7k/s, K2 298k/s, V0 -6.4k/s, m1sin3i 18.7, m2sin3i 6.5, | a1sini 5.27, a2sini 15.
Cep OB2; exciting star of HII region S131; in cluster TR 37.
Survey Image
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