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29 Camelopardalis — Double Star in Camelopardalis

Magnitude 6.5m DoubleStar Camelopardalis (Cam) Visible
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1Physical Properties

Magnitude 6.54
Spectral Type A4IV-V subgiant

2Position & Identifiers

RA 05h 50m 34.0s
Dec +56° 55' 08.0"
HR 1992
HIP 27592
HD 38618
SAO 25403
Flamsteed 29 Cam
Double Cat 4412

3How easy to split?

Primary 6.5 mag Companion 10.4 mag Separation 26.6″
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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Medium Hard+ Hard
150mm Newt. Easy Medium+ Medium+
C8 203mm Easy Easy Medium+
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

4Visibility

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Best season Nov – Jan (peak: Dec)

5Multiple Star System Triple C: optical

Components 3 (triple)
Component IDs AB
Separation 26.6″
Companion Mag 10.4
Position Angle 128°
Discoverer H 4 125
Third component mag. diff 6.29V, 80" from A.

Separation over time

Measured 1783 → 2015 (232 y)
Separation drift 22.4" → 26.6" (+4.20")
Rate +0.0181" / y
PA drift 138° → 128° (-10°, -0.043°/y)

Apparent motion is significant on a human timescale — worth revisiting in a decade.

Measured from the WDS observational archive. No orbital solution has been derived — most likely the period is too long to fit an orbit to the available measurement arc.

Eyepiece View

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80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 128°

A: 6.5 · B: 10.4 · Sep: 26.6″ · PA: 128° · N up, E right

Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″

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Size Comparison

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Compare Stars

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Spectral Classification

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Hertzsprung-Russell Diagram

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Stellar Lifecycle

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Blackbody Spectrum

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Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

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Stellar Fusion

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