Kocab
HIP 72607; Beta UMi; 7 UMi
HIP 72607; Beta UMi; 7 UMi
DoubleStar
UMi
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
2.08
Spectral Type
K4- III
Star Color
Red
(B-V 1.47)
Distance
130.9 ly
Position & Identifiers
RA
14h 50m 42.3s
Dec
+74° 09' 20.0"
Constellation
UMi
HR
5563
HIP
72607
Bayer
Beta
Flamsteed
7 UMi
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Visibility
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Multiple Star System
Separation
212.3″
Companion Mag
12.8
Position Angle
341°
Star Colors
A: Red
Discoverer
BUP 159
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 212.3″ · PA: 341° · 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
KOCAB; Kochab; Kochah; with HR 5735 called "Guards of the Pole."
Survey Image
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