When is the best time to observe 14 Monocerotis?

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

Where is 14 Monocerotis located in the sky?

14 Monocerotis lies in the constellation Monoceros at right ascension 06h 35m and declination +07° 34′.

What telescope do I need to split 14 Monocerotis?

Splitting 14 Monocerotis requires an aperture of roughly 60 mm or larger — the components are separated by about 11.0″ at magnitudes near 6.5. The companion is about 4.1 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

14 Monocerotis — Double Star in Monoceros

Magnitude 6.5^m DoubleStar Monoceros (Mon) Visible

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Observe

1Physical Properties

Magnitude 6.45

Spectral Type A0V s

Star Color Blue-white (B-V -0.02)

2Position & Identifiers

RA 06h 34m 46.4s

Dec +07° 34' 21.0"

Constellation Monoceros (Mon)

HR 2404

HIP 31385

HD 46642

SAO 114085

Flamsteed 14 Mon

Double Cat 5211

SIMBAD

3How easy to split?

Primary 6.5 mag Companion 10.6 mag Separation 11.0″

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

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 Nov – Jan (peak: Dec)

5Multiple Star System

Separation 11.0″

Companion Mag 10.6

Position Angle 211°

Star Colors A: Blue-white B: Yellow

Discoverer STF 938

Notes

Fixed sep.

Separation over time

Measured 1831 → 2012 (181 y)

Separation drift 10.3" → 11.0" (+0.70")

Rate +0.0039" / y

PA drift 207° → 211° (+4°, +0.022°/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.