Theta Vol

HIP 42425; Theta Vol DoubleStar Vol Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 5.20

Spectral Type A0V

Star Color White (B-V 0.01)

Distance 543.6 ly

Position & Identifiers

RA 08h 39m 05.2s

Dec -70° 23' 13.0"

Constellation Vol

HR 3460

HIP 42425

Bayer Theta

Visibility

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Multiple Star System

Components 3

Component IDs AC

Separation 22.6″

Companion Mag 15.0

Position Angle 55°

Star Colors A: White

Discoverer DON 271

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 22.6″ · PA: 55° · 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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