Mirach

Beta And

HIP 5447; Beta And; 43 And Star And Visible Level 1 Naked eye / Binoculars

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Physical Properties

Magnitude 2.06

Range 2.01 - 2.1

Variable Type Slow Irregular Variable

Spectral Type M0+ IIIa

Star Color Red (B-V 1.58)

Temperature 2943 K

Radius 370.1 R☉

Distance 197 ly

Position & Identifiers

RA 01h 09m 43.9s

Dec +35° 37' 14.0"

Constellation And

HR 337

HIP 5447

Bayer Beta

Flamsteed 43 And

Double Cat 949

Visibility

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Multiple Star System B,C,D: optical

Components 5

Component IDs AD

Separation 30.6″

Companion Mag 14.4

Position Angle 234°

Star Colors A: Red

Discoverer BAR 1

Size Comparison

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 Fusion

Stellar Notes

Spectral

Ultraviolet FeII emission. Also classified B9III.

Alternative Names

MIRACH; Merach; Mirac; Mirak; (al Mizar).

Survey Image

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