When is the best time to observe HIP 113784?

HIP 113784 is best observed from August through October, with peak visibility during September when it transits around midnight in the Northern Hemisphere.

Where is HIP 113784 located in the sky?

HIP 113784 lies in the constellation Grus at right ascension 23h 03m and declination -36° 25′.

What telescope do I need to split HIP 113784?

Splitting HIP 113784 requires an aperture of roughly 100 mm or larger — the components are separated by about 2.0″ at magnitudes near 6.5. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 113784 — Double Star in Grus

Magnitude 6.5^m DoubleStar Grus (Gru) Visible

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1Physical Properties

Magnitude 6.47

Spectral Type K1III giant

Star Color Orange (B-V 0.94)

Distance 1,087 ly

2Position & Identifiers

RA 23h 02m 34.0s

Dec -36° 25' 15.0"

Constellation Grus (Gru)

HR 8760

HIP 113784

HD 217642

SAO 214261

SIMBAD

3How easy to split?

Primary 6.5 mag Companion 9.3 mag Separation 2.0″

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

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 2.0″

Companion Mag 9.3

Position Angle 293°

Star Colors A: Orange

Discoverer BU 1011

Separation over time

Measured 1881 → 2016 (135 y)

Separation drift 2.2" → 2.0" (-0.20")

Rate -0.0015" / y

PA drift 302° → 293° (-9°, -0.067°/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.