When is the best time to observe HIP 50433?

HIP 50433 is best observed from January through March, with peak visibility during February when it transits around midnight in the Northern Hemisphere.

Where is HIP 50433 located in the sky?

HIP 50433 lies in the constellation Ursa Major at right ascension 10h 18m and declination +71° 04′.

What telescope do I need to split HIP 50433?

Splitting HIP 50433 requires an aperture of roughly 60 mm or larger — the components are separated by about 16.6″ at magnitudes near 6.7. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 50433 — Double Star in Ursa Major

Magnitude 6.7^m DoubleStar Ursa Major (UMa) Visible

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Observe

1Physical Properties

Magnitude 6.66

Spectral Type A7m

Star Color Yellow-white (B-V 0.32)

Distance 125 ly

2Position & Identifiers

RA 10h 17m 50.6s

Dec +71° 03' 38.0"

Constellation Ursa Major (UMa)

HR 4021

HIP 50433

HD 88849

SAO 7099

Double Cat 7705

SIMBAD

3How easy to split?

Primary 6.7 mag Companion 7.3 mag Separation 16.6″

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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

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Best season Jan – Mar (peak: Feb)

5Multiple Star System Triple C: optical

Components 3 (triple)

Component IDs AB

Separation 16.6″

Companion Mag 7.3

Companion Sp Am

Position Angle 167°

Star Colors A: Yellow-white B: Yellow-white

Discoverer STF1415

Notes

AB binary. Both A and B Am stars. vsini both components =<25k/s. B is 7.36V, +0.30(B-V), +0.19(U-B).

Separation over time

Measured 1823 → 2024 (201 y)

Separation drift 16.5" → 16.6" (+0.10")

Rate +0.0005" / y

PA drift 165° → 167° (+2°, +0.010°/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.