Kaus Borealis
HIP 90496; Lambda Sgr; 22 Sgr
HIP 90496; Lambda Sgr; 22 Sgr
DoubleStar
Sgr
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
2.81
Spectral Type
K0IV
Star Color
Orange
(B-V 1.04)
Distance
78.2 ly
Position & Identifiers
RA
18h 27m 58.2s
Dec
-25° 25' 18.0"
Constellation
Sgr
HR
6913
HIP
90496
Bayer
Lambda
Flamsteed
22 Sgr
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Visibility
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Multiple Star System
Separation
82.5″
Companion Mag
9.9
Position Angle
184°
Star Colors
A: Orange
Discoverer
WFC 208
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 82.5″ · PA: 184° · 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
Hyades group.
Kaus Borealis.
Occult diam. = 0.0044".
Survey Image
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