Zeta Crt

HIP 57283; Zeta Crt; 27 Crt DoubleStar Crt Visible Level 6 Professional/Research - Requires steady seeing

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Physical Properties

Magnitude 4.73

Spectral Type G8IIIa

Star Color Orange (B-V 0.97)

Distance 108.7 ly

Position & Identifiers

RA 11h 44m 45.8s

Dec -18° 21' 03.0"

Constellation Crt

HR 4514

HIP 57283

Bayer Zeta

Flamsteed 27 Crt

Visibility

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Multiple Star System

Separation 0.4″

Companion Mag 7.8

Position Angle 102°

Star Colors A: Orange

Discoverer HDS1658

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 0.4″ · PA: 102° · N up, E left

Unresolved · 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

Group/Cluster

Sirius group? UMa stream.

Survey Image

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