Upsilon UMa
HIP 48319; Upsilon UMa; 29 UMa
DoubleStar
UMa
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
3.80
Range
3.71 - 3.83
Period
3.8 hours
Variable Type
Delta Scuti (Pulsating)
Spectral Type
F0IV
Star Color
Yellow-white
(B-V 0.29)
Distance
116.2 ly
Position & Identifiers
RA
09h 50m 59.4s
Dec
+59° 02' 19.0"
Constellation
UMa
HR
3888
HIP
48319
Bayer
Upsilon
Flamsteed
29 UMa
Variable ID
Ups UMa
Double Cat
7534
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Visibility
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Light Curve
Multiple Star System
Separation
11.9″
Companion Mag
11.3
Companion Sp
M0
Position Angle
297°
Star Colors
A: Yellow-white
B: Red
Discoverer
STT 521
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 11.9″ · PA: 297° · 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
Delta Sct 3.77 - 3.86V, 0.133d, amp. and form of light curve vary.
CPM.
Survey Image
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