When is the best time to observe HIP 72833?

HIP 72833 is best observed from March through May, with peak visibility during April when it transits around midnight in the Northern Hemisphere.

Where is HIP 72833 located in the sky?

HIP 72833 lies in the constellation Apus at right ascension 14h 53m and declination -73° 11′.

What telescope do I need to split HIP 72833?

Splitting HIP 72833 requires an aperture of roughly 100 mm or larger — the components are separated by about 2.3″ at magnitudes near 5.6. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 72833 — Double Star in Apus

Observable Double Star Good (53/100)

Sep: 2.3", Companion: mag 7.6

Magnitude 5.6^m DoubleStar Apus (Aps) Visible

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Observe

1Physical Properties

Magnitude 5.60

Spectral Type G7IIIa+F9IV bright giant

Star Color Orange (B-V 0.82)

2Position & Identifiers

RA 14h 53m 13.7s

Dec -73° 11' 24.0"

Constellation Apus (Aps)

HR 5520

HIP 72833

HD 130458

SAO 257206

SIMBAD

3How easy to split?

Primary 5.6 mag Companion 7.6 mag Separation 2.3″

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	Hard+	Hard+	Hard+
150 mm Newton 150mm Newt.	Medium+	Medium+	Medium+
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 Mar – May (peak: Apr)

5Multiple Star System

Separation 2.3″

Companion Mag 7.6

Position Angle 128°

Star Colors A: Orange

Discoverer I 236

Notes

CPM?

Separation over time

Measured 1901 → 2019 (118 y)

Separation drift 1.7" → 2.3" (+0.60")

Rate +0.0051" / y

PA drift 102° → 128° (+26°, +0.220°/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.