Epsilon Cet

HIP 12390; Epsilon Cet; 83 Cet DoubleStar Cet Visible Level 5 Expert level - Requires steady seeing

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Physical Properties

Magnitude 4.84

Spectral Type F5V+F6V

Star Color Yellow (B-V 0.45)

Distance 45.3 ly

Position & Identifiers

RA 02h 39m 33.8s

Dec -11° 52' 20.0"

Constellation Cet

HR 781

HIP 12390

Bayer Epsilon

Flamsteed 83 Cet

Visibility

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Multiple Star System

Separation 0.1″

Companion Mag 6.5

Companion Sp F5V

Position Angle 119°

Star Colors A: Yellow B: Yellow-white

Discoverer FIN 312

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 0.1″ · PA: 119° · 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.

Stellar Notes

Double Star

5.6 F6V, 5.6 F6V, 2.67y, a = 0.108". Combined mag., colors.

Spectroscopic Binary

975.9d, K 2.2k/s, V0 +16.4k/s, asini 20.26. Poor phase distribution according to Morbey and Griffin (1987, | ApJ, 317, 343). Speckle interferometric sep. 0.085" (1980.94).

Survey Image

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