When is the best time to observe HIP 28675?

HIP 28675 is best observed from November through January, with peak visibility during December when it transits around midnight in the Northern Hemisphere.

Where is HIP 28675 located in the sky?

HIP 28675 lies in the constellation Lepus at right ascension 06h 03m and declination -26° 17′.

What telescope do I need to split HIP 28675?

Splitting HIP 28675 requires an aperture of roughly 480 mm or larger — the components are separated by about 2.6″ at magnitudes near 5.0. The companion is about 6.3 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 28675 — Double Star in Lepus

Magnitude 5.0^m DoubleStar Lepus (Lep) Visible

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Observe

1Physical Properties

Magnitude 5.04

Spectral Type K3III giant

Star Color Red (B-V 1.34)

2Position & Identifiers

RA 06h 03m 15.5s

Dec -26° 17' 04.0"

Constellation Lepus (Lep)

HR 2140

HIP 28675

HD 41312

SAO 171180

Double Cat 4645

SIMBAD

3How easy to split?

Primary 5.0 mag Companion 11.3 mag Separation 2.6″

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

Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

To reach "Medium" at Bortle 3, you'd need at least a 480 mm reflector.

4Visibility

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Best season Nov – Jan (peak: Dec)

5Multiple Star System Triple

Components 3 (triple)

Component IDs AB

Separation 2.6″

Companion Mag 11.3

Position Angle 122°

Star Colors A: Red

Discoverer B 96

Notes

C is 15v at 21".

Separation over time

Measured 1927 → 2016 (89 y)

Separation drift 2.2" → 2.6" (+0.40")

Rate +0.0045" / y

PA drift 131° → 122° (-9°, -0.101°/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.