40 Cas

HIP 7650; 40 Cas DoubleStar Cas Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 5.28

Spectral Type G8III

Star Color Orange (B-V 0.96)

Distance 191.9 ly

Position & Identifiers

RA 01h 38m 30.9s

Dec +73° 02' 24.0"

Constellation Cas

HR 456

HIP 7650

Flamsteed 40 Cas

Double Cat 1268

Visibility

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Multiple Star System

Separation 52.9″

Companion Mag 11.7

Position Angle 236°

Star Colors A: Orange

Discoverer HJ 2054

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 52.9″ · PA: 236° · 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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