When is the best time to observe HIP 30675?

HIP 30675 is best observed from November through January, with peak visibility during December when it transits around midnight in the Northern Hemisphere.

Where is HIP 30675 located in the sky?

HIP 30675 lies in the constellation Monoceros at right ascension 06h 27m and declination -07° 31′.

What telescope do I need to split HIP 30675?

Splitting HIP 30675 requires an aperture of roughly 60 mm or larger — the components are separated by about 20.8″ at magnitudes near 6.3. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 30675 — Double Star in Monoceros

Magnitude 6.3^m DoubleStar Monoceros (Mon) Visible

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Observe

1Physical Properties

Magnitude 6.27

Spectral Type A0Vn

Star Color Blue-white (B-V -0.04)

2Position & Identifiers

RA 06h 26m 44.9s

Dec -07° 30' 41.0"

Constellation Monoceros (Mon)

HR 2328

HIP 30675

HD 45380

SAO 133263

Double Cat 5070

SIMBAD

3How easy to split?

Primary 6.3 mag Companion 9.3 mag Separation 20.8″

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	Easy	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

Separation 20.8″

Companion Mag 9.2

Position Angle 299°

Star Colors A: Blue-white B: Yellow

Discoverer STF 914

Notes

Fixed sep.

Separation over time

Measured 1825 → 2024 (199 y)

Separation drift 30.0" → 20.8" (-9.20")

Rate -0.0462" / y

PA drift 295° → 299° (+4°, +0.020°/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.