Nu CrB

HIP 80214; Nu CrB; 21 CrB

HIP 80214; Nu CrB; 21 CrB DoubleStar CrB Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 5.39

Spectral Type K5III

Star Color Red (B-V 1.53)

Distance 155.3 ly

Position & Identifiers

RA 16h 22m 29.2s

Dec +33° 42' 13.0"

Constellation CrB

HR 6108

HIP 80214

Bayer Nu

Flamsteed 21 CrB

Visibility

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Multiple Star System

Separation 98.3″

Companion Mag 11.5

Position Angle 16°

Star Colors A: Red

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 98.3″ · PA: 16° · 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.

Survey Image

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