When is the best time to observe HIP 92475?

HIP 92475 is best observed from May through July, with peak visibility during June when it transits around midnight in the Northern Hemisphere.

Where is HIP 92475 located in the sky?

HIP 92475 lies in the constellation Aquila at right ascension 18h 51m and declination +10° 59′.

What telescope do I need to split HIP 92475?

Splitting HIP 92475 requires an aperture of roughly 100 mm or larger — the components are separated by about 3.6″ at magnitudes near 6.5. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 92475 — Double Star in Aquila

Magnitude 6.5^m DoubleStar Aquila (Aql) Visible

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Observe

1Physical Properties

Magnitude 6.55

Spectral Type K5III+K3III giant

Distance 652 ly

2Position & Identifiers

RA 18h 50m 45.6s

Dec +10° 58' 35.0"

Constellation Aquila (Aql)

HR 7099

HIP 92475

HD 174569

SAO 104170

Double Cat 11750

SIMBAD

3How easy to split?

Primary 6.6 mag Companion 7.8 mag Separation 3.6″

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	Medium+	Medium+	Medium+
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 May – Jul (peak: Jun)

5Multiple Star System

Separation 3.6″

Companion Mag 7.8

Companion Sp K3

Position Angle 180°

Star Colors B: Orange

Discoverer STF2404

Notes

Binary, companion K3III-IV.

Separation over time

Measured 1822 → 2020 (198 y)

Separation drift 3.2" → 3.6" (+0.40")

Rate +0.0020" / y

PA drift 187° → 180° (-7°, -0.035°/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.