When is the best time to observe HIP 40326?

HIP 40326 is best observed from December through February, with peak visibility during January when it transits around midnight in the Northern Hemisphere.

Where is HIP 40326 located in the sky?

HIP 40326 lies in the constellation Puppis at right ascension 08h 14m and declination -40° 21′.

What telescope do I need to split HIP 40326?

Splitting HIP 40326 requires an aperture of roughly 60 mm or larger — the components are separated by about 59.4″ at magnitudes near 4.4. The companion is about 5.1 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 40326 — Double Star in Puppis

Magnitude 4.4^m DoubleStar Puppis (Pup) Visible

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1Physical Properties

Magnitude 4.44

Spectral Type K1II-III bright giant

Star Color Red (B-V 1.17)

Distance 326 ly

2Position & Identifiers

RA 08h 14m 02.9s

Dec -40° 20' 53.0"

Constellation Puppis (Pup)

HR 3243

HIP 40326

HD 69142

SAO 219635

SIMBAD

3How easy to split?

Primary 4.4 mag Companion 9.5 mag Separation 59.4″

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	Medium+	Medium+	Medium
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 Dec – Feb (peak: Jan)

5Multiple Star System

Separation 59.4″

Companion Mag 9.5

Position Angle 339°

Star Colors A: Red

Discoverer HJ 4062

Separation over time

Measured 1837 → 2011 (174 y)

Separation drift 50.0" → 59.4" (+9.40")

Rate +0.0540" / y

PA drift 343° → 339° (-4°, -0.023°/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.