21 Cnc

HIP 41163; 21 Cnc DoubleStar Cnc Visible Level 5 Expert level - Requires steady seeing

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Physical Properties

Magnitude 6.08

Spectral Type M2III

Star Color Red (B-V 1.49)

Position & Identifiers

RA 08h 23m 55.2s

Dec +10° 37' 55.0"

Constellation Cnc

HR 3290

HIP 41163

Flamsteed 21 Cnc

Double Cat 6787

Visibility

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Multiple Star System

Separation 1.3″

Companion Mag 9.4

Position Angle 267°

Star Colors A: Red

Discoverer A 2961

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 1.3″ · PA: 267° · 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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