Alpha Ret

HIP 19780; Alpha Ret DoubleStar Ret Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 3.35

Spectral Type G8IIIa:

Star Color Orange (B-V 0.91)

Distance 161.6 ly

Position & Identifiers

RA 04h 14m 25.5s

Dec -62° 28' 26.0"

Constellation Ret

HR 1336

HIP 19780

Bayer Alpha

Visibility

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Multiple Star System

Separation 48.4″

Companion Mag 12.0

Position Angle 355°

Star Colors A: Orange

Discoverer HJ 3638

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 48.4″ · PA: 355° · 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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