When is the best time to observe HIP 25045?

HIP 25045 is best observed from November through January, with peak visibility during December when it transits around midnight in the Northern Hemisphere.

Where is HIP 25045 located in the sky?

HIP 25045 lies in the constellation Lepus at right ascension 05h 22m and declination -24° 46′.

What telescope do I need to split HIP 25045?

Splitting HIP 25045 requires an aperture of roughly 100 mm or larger — the components are separated by about 3.5″ at magnitudes near 5.1. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 25045 — Double Star in Lepus

Observable Double Star Good (56/100)

Sep: 3.5", Companion: mag 6.6

Magnitude 5.1^m DoubleStar Lepus (Lep) Visible

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Observe

1Physical Properties

Magnitude 5.06

Spectral Type G7II-III+A7IV-V bright giant

Star Color Yellow (B-V 0.67)

Distance 815 ly

2Position & Identifiers

RA 05h 21m 46.2s

Dec -24° 46' 23.0"

Constellation Lepus (Lep)

HR 1771

HIP 25045

HD 35162

SAO 170351

Double Cat 3954

SIMBAD

3How easy to split?

Primary 5.1 mag Companion 6.6 mag Separation 3.5″

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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 Nov – Jan (peak: Dec)

5Multiple Star System Triple C: optical

Components 3 (triple)

Component IDs AB

Separation 3.5″

Companion Mag 6.6

Position Angle 91°

Star Colors A: Yellow B: Orange

Discoverer HJ 3752

Notes

AB binary; C, 9.2v K0 at 61" optical.

Separation over time

Measured 1835 → 2015 (180 y)

Separation drift 4.0" → 3.5" (-0.50")

Rate -0.0028" / y

PA drift 100° → 91° (-9°, -0.050°/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.