Phad
HIP 58001; Gamma UMa; 64 UMa
HIP 58001; Gamma UMa; 64 UMa
Star
UMa
Visible
Level 1
Naked eye / Binoculars
Physical Properties
Magnitude
2.44
Spectral Type
A1IV(n)
Star Color
White
(B-V 0.00)
Distance
83.2 ly
Position & Identifiers
RA
11h 53m 49.8s
Dec
+53° 41' 41.0"
Constellation
UMa
HR
4554
HIP
58001
Bayer
Gamma
Flamsteed
64 UMa
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Visibility
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Multiple Star System
Companion Mag
8.2
Companion Sp
K2V
Position Angle
75°
Star Colors
A: White
B: Orange
Discoverer
SHY 227
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
Color excess E(B-V) = 0.00.
"Dipper Stars;" Sirius group; UMa moving cluster.
Variable emission of K line and possible variation in H alpha.
PHAD; Phecda; Phekda; Phegda; Phekha; Phacd.
Survey Image
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