Epsilon Sgr

KAUS AUSTRALIS

HIP 90185; Epsilon Sgr; 20 Sgr DoubleStar Sgr Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 1.85

Spectral Type A0III

Star Color Blue-white (B-V -0.03)

Distance 141.8 ly

Position & Identifiers

RA 18h 24m 10.3s

Dec -34° 23' 05.0"

Constellation Sgr

HR 6879

HIP 90185

Bayer Epsilon

Flamsteed 20 Sgr

Visibility

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Multiple Star System

Separation 39.9″

Companion Mag 14.3

Position Angle 314°

Star Colors A: Blue-white

Discoverer SEE 351

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 39.9″ · PA: 314° · 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.

Stellar Notes

Radial Velocity

Two discordant determinations of vsini, 0 and 175k/s.

Alternative Names

KAUS AUSTRALIS.

Remarks

Diam. = 0.00137 - 0.00144".

Survey Image

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