Zeta Cru

HIP 60009; Zeta Cru DoubleStar Cru Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 4.04

Spectral Type B2.5V

Star Color Blue (B-V -0.17)

Position & Identifiers

RA 12h 18m 26.1s

Dec -64° 00' 11.0"

Constellation Cru

HR 4679

HIP 60009

Bayer Zeta

Visibility

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Multiple Star System

Separation 33.6″

Companion Mag 12.5

Position Angle 345°

Star Colors A: Blue

Discoverer HJ 4512

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 33.6″ · PA: 345° · 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

Double Star

Companion G8III, optical.

Group/Cluster

Sco-Cen cluster; lower Cen group of Sco-Cen assoc.; member of Pleiades group.

Survey Image

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