When is the best time to observe HIP 93537?

HIP 93537 is best observed from June through August, with peak visibility during July when it transits around midnight in the Northern Hemisphere.

Where is HIP 93537 located in the sky?

HIP 93537 lies in the constellation Sagittarius at right ascension 19h 03m and declination -19° 15′.

What telescope do I need to split HIP 93537?

Splitting HIP 93537 requires an aperture of roughly 80 mm or larger — the components are separated by about 7.7″ at magnitudes near 6.0. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 93537 — Double Star in Sagittarius

Magnitude 6.0^m DoubleStar Sagittarius (Sgr) Visible

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Observe

1Physical Properties

Magnitude 6.05

Spectral Type G6III giant

Star Color Red (B-V 1.29)

2Position & Identifiers

RA 19h 03m 03.8s

Dec -19° 14' 43.0"

Constellation Sagittarius (Sgr)

HR 7203

HIP 93537

HD 176884

SAO 162130

Double Cat 11972

SIMBAD

3How easy to split?

Primary 6.1 mag Companion 9.0 mag Separation 7.7″

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	Easy	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 Jun – Aug (peak: Jul)

5Multiple Star System Quadruple

Components 4 (quadruple)

Component IDs AB

Separation 7.7″

Companion Mag 9.0

Position Angle 89°

Star Colors A: Red

Discoverer HJ 5082

Notes

AB CPM. B, 9.17V, +0.47(B-V), +0.09(U-B).

Separation over time

Measured 1836 → 2016 (180 y)

Separation drift 6.0" → 7.7" (+1.70")

Rate +0.0094" / y

PA drift 91° → 89° (-2°, -0.011°/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.