When is the best time to observe 2 Puppis?

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

Where is 2 Puppis located in the sky?

2 Puppis lies in the constellation Puppis at right ascension 07h 45m and declination -14° 41′.

What telescope do I need to split 2 Puppis?

Splitting 2 Puppis requires an aperture of roughly 60 mm or larger — the components are separated by about 16.7″ at magnitudes near 6.1. Larger apertures and steady seeing help resolve the pair cleanly.

2 Puppis — Double Star in Puppis

Magnitude 6.1^m DoubleStar Puppis (Pup) Visible

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Observe

1Physical Properties

Magnitude 6.07

Spectral Type A2V

Star Color White (B-V 0.11)

2Position & Identifiers

RA 07h 45m 29.1s

Dec -14° 41' 27.0"

Constellation Puppis (Pup)

HR 3010

HIP 37843

HD 62864

SAO 153363

Flamsteed 2 Pup

Double Cat 6348

SIMBAD

3How easy to split?

Primary 6.1 mag Companion 6.7 mag Separation 16.7″

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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 Dec – Feb (peak: Jan)

5Multiple Star System Triple C: optical

Components 3 (triple)

Component IDs AB

Separation 16.7″

Companion Mag 6.7

Companion Sp A1V

Position Angle 340°

Star Colors A: White B: White

Discoverer STF1138

Notes

Binary with HR 3009.

Separation over time

Measured 1782 → 2019 (237 y)

Separation drift 17.4" → 16.7" (-0.70")

Rate -0.0030" / y

PA drift 339° → 340° (+1°, +0.004°/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.