18 UMa
HIP 45493; 18 UMa
Star
UMa
Visible
Level 2
Small telescope (4")
Physical Properties
Magnitude
4.83
Range
5.02 - 5.05
Period
2.9 hours
Variable Type
Delta Scuti (Low Amplitude)
Spectral Type
A5V
Star Color
Yellow-white
(B-V 0.19)
Distance
77.7 ly
Position & Identifiers
RA
09h 16m 11.3s
Dec
+54° 01' 19.0"
Constellation
UMa
HR
3662
HIP
45493
Flamsteed
18 UMa
Variable ID
DD UMa
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
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Stellar Notes
Delta Sct? Amp. 0.03V, 3 hrs., but sometimes cst. for 5 hrs.
Sirius group; UMa stream.
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