When is the best time to observe HIP 103301?

HIP 103301 is best observed from June through August, with peak visibility during July when it transits around midnight in the Northern Hemisphere.

Where is HIP 103301 located in the sky?

HIP 103301 lies in the constellation Delphinus at right ascension 20h 56m and declination +04° 32′.

What telescope do I need to split HIP 103301?

Splitting HIP 103301 requires an aperture of roughly 100 mm or larger — the components are separated by about 2.0″ at magnitudes near 6.0. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 103301 — Double Star in Delphinus

Magnitude 6.0^m DoubleStar Delphinus (Del) Visible

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Observe

1Physical Properties

Magnitude 6.05

Spectral Type G6III-IV giant

Star Color Orange (B-V 0.82)

2Position & Identifiers

RA 20h 55m 40.7s

Dec +04° 31' 58.0"

Constellation Delphinus (Del)

HR 8010

HIP 103301

HD 199223

SAO 126373

Double Cat 14430

SIMBAD

3How easy to split?

Primary 6.1 mag Companion 7.5 mag Separation 2.0″

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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 Jun – Aug (peak: Jul)

5Multiple Star System

Separation 2.0″

Companion Mag 7.5

Position Angle 281°

Star Colors A: Orange

Discoverer STF2735

Notes

Binary.

Separation over time

Measured 1828 → 2020 (192 y)

Separation drift 2.1" → 2.0" (-0.10")

Rate -0.0005" / y

PA drift 289° → 281° (-8°, -0.042°/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.