4 Sco

HIP 77984; 4 Sco DoubleStar Sco Visible Level 6 Professional/Research - Requires steady seeing

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Physical Properties

Magnitude 5.62

Spectral Type A3V

Star Color Yellow-white (B-V 0.15)

Position & Identifiers

RA 15h 55m 30.1s

Dec -26° 15' 57.0"

Constellation Sco

HR 5917

HIP 77984

Flamsteed 4 Sco

Visibility

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Multiple Star System

Separation 0.8″

Companion Mag 9.6

Position Angle 128°

Star Colors A: Yellow-white B: Orange

Discoverer TOK 790

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 0.8″ · PA: 128° · 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.

Survey Image

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