BX Boo
HIP 73454
DoubleStar
Boo
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
6.37
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
B9pSiSrCr
Star Color
Blue-white
(B-V -0.14)
Position & Identifiers
RA
15h 00m 38.7s
Dec
+47° 16' 40.0"
Constellation
Boo
HR
5597
HIP
73454
Variable ID
BX Boo
Double Cat
9477
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Visibility
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Multiple Star System
Separation
35.7″
Companion Mag
9.6
Position Angle
156°
Star Colors
A: Blue-white
B: Yellow-white
Discoverer
STT 291
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 35.7″ · PA: 156° · 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
ADS 9447A, Alpha CV 6.33 - 6.41V, 0.6080722 or 0.741285 or 2.8881d. Magnetic field var. 0.7447d?, possibly irregular.
CPM. Component B F4V.
Comp. A = A Pec: Si, Cr, Sr, Zr overabundant by over a factor of 10. Silicon star also classified A0Vp(Si v. st; Sr, | Cr st.; Ca wk.)s.
ADS 9447A, 0.741285d.
Survey Image
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