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Tau Aur

HIP 27483; Tau Aur; 29 Aur DoubleStar Aur Visible Level 3 Medium telescope (6-8") - Requires steady seeing
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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

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
N E A (4.5) B (11.6)

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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