Tau Aur
HIP 27483; Tau Aur; 29 Aur
DoubleStar
Aur
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
4.52
Spectral Type
G8IIIFe-1
Star Color
Orange
(B-V 0.94)
Distance
465.9 ly
Position & Identifiers
RA
05h 49m 10.5s
Dec
+39° 10' 52.0"
Constellation
Aur
HR
1995
HIP
27483
Bayer
Tau
Flamsteed
29 Aur
Double Cat
4398
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Visibility
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Multiple Star System
Components
3
Component IDs
AC
Separation
42.5″
Companion Mag
11.6
Position Angle
357°
Star Colors
A: Orange
Discoverer
BU 192
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 42.5″ · PA: 357° · 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
Ursa cluster? UMa stream.
Survey Image
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