HIP 40889
HIP 40889
DoubleStar
UMa
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
5.98
Spectral Type
M0III
Star Color
Red
(B-V 1.54)
Position & Identifiers
RA
08h 20m 40.3s
Dec
+72° 24' 26.0"
Constellation
UMa
HR
3236
HIP
40889
Double Cat
6724
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
42.4″
Companion Mag
9.7
Companion Sp
F0
Position Angle
90°
Star Colors
A: Red
B: Yellow-white
Discoverer
STF1193
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 42.4″ · PA: 90° · 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
B, 9.78V, +0.39(B-V), -0.02(U-B), F5IV.
Survey Image
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