When is the best time to observe HIP 32144?

HIP 32144 is best observed from November through January, with peak visibility during December when it transits around midnight in the Northern Hemisphere.

Where is HIP 32144 located in the sky?

HIP 32144 lies in the constellation Canis Major at right ascension 06h 43m and declination -22° 27′.

What telescope do I need to split HIP 32144?

Splitting HIP 32144 requires an aperture of roughly 60 mm or larger — the components are separated by about 18.0″ at magnitudes near 6.1. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 32144 — Double Star in Canis Major

Magnitude 6.1^m DoubleStar Canis Major (CMa) Visible

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Observe

1Physical Properties

Magnitude 6.13

Range 6.18 - 6.27

Period 21.9 hours

Variable Type Gamma Doradus (Pulsating)

Spectral Type F0

Star Color Yellow-white (B-V 0.34)

2Position & Identifiers

RA 06h 42m 45.8s

Dec -22° 26' 57.0"

Constellation Canis Major (CMa)

HR 2481

HIP 32144

HD 48501

SAO 172204

Double Cat 5377

SIMBAD

3How easy to split?

Primary 6.1 mag Companion 8.3 mag Separation 18.0″

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	Easy	Easy	Easy
150 mm Newton 150mm Newt.	Easy	Easy	Easy
Celestron C8 (203 mm SCT) 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 Nov – Jan (peak: Dec)

5Light Curve

6Multiple Star System

Separation 18.0″

Companion Mag 8.3

Position Angle 145°

Star Colors A: Yellow-white B: Yellow

Discoverer S 534

Notes

CPM.

Separation over time

Measured 1825 → 2024 (199 y)

Separation drift 18.1" → 18.0" (-0.10")

Rate -0.0005" / y

PA drift 143° → 145° (+2°, +0.010°/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.