When is the best time to observe HIP 24440?

HIP 24440 is best observed from November through January, with peak visibility during December when it transits around midnight in the Northern Hemisphere.

Where is HIP 24440 located in the sky?

HIP 24440 lies in the constellation Camelopardalis at right ascension 05h 15m and declination +76° 28′.

What telescope do I need to split HIP 24440?

Splitting HIP 24440 requires an aperture of roughly 100 mm or larger — the components are separated by about 2.1″ at magnitudes near 6.4. The companion is about 3.1 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 24440 — Double Star in Camelopardalis

Magnitude 6.4^m DoubleStar Camelopardalis (Cam) Visible

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Observe

1Physical Properties

Magnitude 6.37

Spectral Type A0V

Star Color Blue-white (B-V -0.02)

2Position & Identifiers

RA 05h 14m 35.6s

Dec +76° 28' 22.0"

Constellation Camelopardalis (Cam)

HR 1650

HIP 24440

HD 32781

SAO 5464

Double Cat 3738

SIMBAD

3How easy to split?

Primary 6.4 mag Companion 9.5 mag Separation 2.1″

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	V. hard+	V. hard+	V. hard+
150 mm Newton 150mm Newt.	Hard+	Hard+	Hard+
Celestron C8 (203 mm SCT) C8 203mm	Medium	Medium	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

Separation 2.1″

Companion Mag 9.5

Position Angle 123°

Star Colors A: Blue-white B: Yellow

Discoverer HU 1097

Separation over time

Measured 1904 → 2016 (112 y)

Separation drift 1.5" → 2.1" (+0.60")

Rate +0.0054" / y

PA drift 113° → 123° (+10°, +0.089°/y)

Slow change over generations — observable in lifetime comparisons.

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.