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HIP 60549 — Double Star in Centaurus

Magnitude 6.2m DoubleStar Centaurus (Cen) Visible
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1Physical Properties

Magnitude 6.25
Spectral Type K2-3III
Star Color Orange (B-V 1.18)

2Position & Identifiers

RA 12h 24m 44.7s
Dec -41° 23' 03.0"
Constellation Centaurus (Cen)
HR 4718
HIP 60549
HD 107998
SAO 223417

3How easy to split?

Primary 6.3 mag Companion 8.4 mag Separation 10.0″
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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Easy Easy Medium+
150mm Newt. Easy Easy Easy
C8 203mm Easy Easy Easy
Easy Medium Hard Very hard Impossible

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

4Visibility

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Best season Feb – Apr (peak: Mar)

5Multiple Star System

Separation 10.0″
Companion Mag 8.4
Position Angle 208°
Star Colors A: Orange
Discoverer HJ 4518
Components K3IIIab and F8IV.

Separation over time

Measured 1834 → 2016 (182 y)
Separation drift 10.0" → 10.0" (+0.00")
Rate +0.0000" / y
PA drift 209° → 208° (-1°, -0.005°/y)

Essentially fixed on human timescales — the same view your grandchildren will see.

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 208°

A: 6.2 · B: 8.4 · Sep: 10.0″ · PA: 208° · N up, E right

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

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Size Comparison

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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

Nearby in the Sky

Other targets within a few degrees — pan your scope a little and keep exploring.

Visibility scores assume a 150 mm Newton at Bortle 4.

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