Atria

HIP 82273; Alpha TrA

HIP 82273; Alpha TrA DoubleStar TrA Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 1.92

Spectral Type K2II

Star Color Red (B-V 1.44)

Distance 390.4 ly

Position & Identifiers

RA 16h 48m 39.9s

Dec -69° 01' 40.0"

Constellation TrA

HR 6217

HIP 82273

Bayer Alpha

Visibility

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Multiple Star System

Separation 92.5″

Companion Mag 11.4

Companion Sp Ba1

Position Angle 22°

Star Colors A: Red B: Blue

Discoverer WFC 179

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 92.5″ · PA: 22° · 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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