When is the best time to observe HIP 39035?

HIP 39035 is best observed from December through February, with peak visibility during January when it transits around midnight in the Northern Hemisphere.

Where is HIP 39035 located in the sky?

HIP 39035 lies in the constellation Puppis at right ascension 07h 59m and declination -49° 59′.

What telescope do I need to split HIP 39035?

Splitting HIP 39035 requires an aperture of roughly 60 mm or larger — the components are separated by about 16.4″ at magnitudes near 6.3. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 39035 — Double Star in Puppis

Magnitude 6.3^m DoubleStar Puppis (Pup) Visible

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Observe

1Physical Properties

Magnitude 6.32

Spectral Type B2IV-V subgiant

2Position & Identifiers

RA 07h 59m 12.3s

Dec -49° 58' 36.0"

Constellation Puppis (Pup)

HR 3142

HIP 39035

HD 66005

SAO 219249

SIMBAD

3How easy to split?

Primary 6.3 mag Companion 6.2 mag Separation 16.4″

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

Set a location in User Settings to see visibility data.

Best season Dec – Feb (peak: Jan)

5Multiple Star System

Separation 16.4″

Companion Mag 6.2

Position Angle 48°

Discoverer DUN 59

Notes

CPM with HR 3143.

Separation over time

Measured 1834 → 2016 (182 y)

Separation drift 20.0" → 16.4" (-3.60")

Rate -0.0198" / y

PA drift 43° → 48° (+5°, +0.027°/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.