When is the best time to observe HIP 3489?

HIP 3489 is best observed from August through October, with peak visibility during September when it transits around midnight in the Northern Hemisphere.

Where is HIP 3489 located in the sky?

HIP 3489 lies in the constellation Tucana at right ascension 00h 45m and declination -62° 30′.

What telescope do I need to split HIP 3489?

Splitting HIP 3489 requires an aperture of roughly 100 mm or larger — the components are separated by about 2.4″ at magnitudes near 6.1. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 3489 — Double Star in Tucana

Magnitude 6.1^m DoubleStar Tucana (Tuc) Visible

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Observe

1Physical Properties

Magnitude 6.07

Spectral Type F5III-IV giant

Star Color Yellow-white (B-V 0.44)

2Position & Identifiers

RA 00h 44m 32.3s

Dec -62° 29' 52.0"

Constellation Tucana (Tuc)

HR 199

HIP 3489

HD 4294

SAO 248243

SIMBAD

3How easy to split?

Primary 6.1 mag Companion 8.0 mag Separation 2.4″

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	Hard+	Hard+	Hard+
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 Aug – Oct (peak: Sep)

5Multiple Star System

Separation 2.4″

Companion Mag 8.0

Position Angle 73°

Star Colors A: Yellow-white B: Orange

Discoverer COO 3

Notes

Primary F5III, secondary F6IV.

Separation over time

Measured 1894 → 2016 (122 y)

Separation drift 3.0" → 2.4" (-0.60")

Rate -0.0049" / y

PA drift 90° → 73° (-17°, -0.139°/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.