Pi Boo
HIP 71762; Pi Boo; 29 Boo
Observable Double Star
Excellent (71/100)
Sep: 5.4", Companion: mag 5.8
HIP 71762; Pi Boo; 29 Boo
DoubleStar
Boo
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
4.94
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
B9pMnHgSi
Star Color
Blue-white
(B-V -0.03)
Distance
1630.8 ly
Position & Identifiers
RA
14h 40m 43.6s
Dec
+16° 25' 06.0"
Constellation
Boo
HR
5475
HIP
71762
Bayer
Pi
Flamsteed
29 Boo
Double Cat
9338
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
5.4″
Companion Mag
5.8
Position Angle
114°
Star Colors
A: Blue-white
B: Yellow-white
Discoverer
STF1864
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 5.4″ · PA: 114° · 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 9338A, Alpha CV? 4.94 - 5.00V.
Binary with HR 5476. Colors for combined light. Mag. for blend, 4.53V.
Overabundant gallium. Metallic-line star. 4206 MnII line varies in period 2.2445d; other lines vary, some in opposite | phase. Also classified A8.5V; component A, ApMn, component B, A7V.
0.012".
Survey Image
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