Eta Cnc

HIP 41909; Eta Cnc; 33 Cnc DoubleStar Cnc Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 5.33

Spectral Type K3III

Star Color Red (B-V 1.25)

Distance 250.9 ly

Position & Identifiers

RA 08h 32m 42.5s

Dec +20° 26' 28.0"

Constellation Cnc

HR 3366

HIP 41909

Bayer Eta

Flamsteed 33 Cnc

Visibility

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Multiple Star System

Separation 164.2″

Companion Mag 20.0

Companion Sp L3

Position Angle 280°

Star Colors A: Red

Discoverer ZHN 3

Eyepiece View

Telescope Eyepiece

32x Dawes: 1.9″ TFOV: 1.6°

Seeing

Scale Realistic = true angular size

Sep: 164.2″ · PA: 280° · 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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