Pi Cen

HIP 55425; Pi Cen DoubleStar Cen Visible Level 5 Expert level - Requires steady seeing

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Physical Properties

Magnitude 3.89

Spectral Type B5V

Star Color Blue-white (B-V -0.15)

Distance 357.1 ly

Position & Identifiers

RA 11h 21m 00.4s

Dec -54° 29' 28.0"

Constellation Cen

HR 4390

HIP 55425

Bayer Pi

Visibility

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Multiple Star System

Separation 0.4″

Companion Mag 5.7

Position Angle 120°

Star Colors A: Blue-white B: White

Discoverer I 879

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 0.4″ · PA: 120° · 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

Double Star

4.3 B5VN, 5.0 B6V, 39.18y, a = 0.277". Combined mag., colors.

Group/Cluster

Sco-Cen assoc.

Survey Image

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