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Kappa Boo

HIP 69483; Kappa2 Boo; 17 Boo

Observable Double Star Good (58/100)

Sep: 13.7", Companion: mag 6.6

HIP 69483; Kappa2 Boo; 17 Boo DoubleStar Boo Visible Level 2 Small telescope (4") - Requires steady seeing
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Physical Properties

Magnitude 4.54
Range 4.5 - 4.58
Period 1.8 hours
Variable Type Delta Scuti (Low Amplitude)
Spectral Type A8IV
Star Color Yellow-white (B-V 0.20)
Distance 326 ly

Position & Identifiers

RA 14h 13m 29.0s
Dec +51° 47' 25.0"
Constellation Boo
HR 5329
HIP 69483
Bayer Kappa2
Flamsteed 17 Boo
Variable ID Kap2 Boo
Double Cat 9173

Visibility

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Light Curve

Multiple Star System

Separation 13.7″
Companion Mag 6.6
Companion Sp F1V
Position Angle 236°
Star Colors A: Yellow-white B: Yellow-white
Discoverer STF1821

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 236° A (4.5) B (6.6)

Sep: 13.7″ · PA: 236° · 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 Fusion

Stellar Notes

ADS 9173A, Delta Sct 4.50 - 4.58V, 0.06682 or 0.076242d. Possible beat period of about 16d.
Binary with HR 5328.
Sirius group? UMa stream.
0.017".
Asellus Tertius.

Survey Image

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