When is the best time to observe HIP 113783?

HIP 113783 is best observed from August through October, with peak visibility during September when it transits around midnight in the Northern Hemisphere.

Where is HIP 113783 located in the sky?

HIP 113783 lies in the constellation Pegasus at right ascension 23h 03m and declination +31° 47′.

What telescope do I need to split HIP 113783?

Splitting HIP 113783 requires an aperture of roughly 60 mm or larger — the components are separated by about 141.4″ at magnitudes near 6.6. The companion is about 5.4 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 113783 — Double Star in Pegasus

Magnitude 6.6^m DoubleStar Pegasus (Peg) Visible

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Observe

1Physical Properties

Magnitude 6.57

Spectral Type F2IV subgiant

Star Color Yellow-white (B-V 0.35)

2Position & Identifiers

RA 23h 02m 33.1s

Dec +31° 46' 50.0"

Constellation Pegasus (Peg)

HR 8765

HIP 113783

HD 217754

SAO 72949

SIMBAD

3How easy to split?

Primary 6.6 mag Companion 12.0 mag Separation 141.4″

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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.	Medium	Hard+	Hard
Celestron C8 (203 mm SCT) C8 203mm	Medium+	Medium	Hard+

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 141.4″

Companion Mag 12.0

Companion Sp K:

Position Angle 268°

Star Colors A: Yellow-white B: Red

Discoverer SKF2184

Separation over time

Measured 1912 → 2016 (104 y)

Separation drift 141.4" → 141.4" (+0.00")

Rate +0.0000" / y

PA drift 268° → 268° (+0°, +0.000°/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.