When is the best time to observe HIP 93177?

HIP 93177 is best observed from May through July, with peak visibility during June when it transits around midnight in the Northern Hemisphere.

Where is HIP 93177 located in the sky?

HIP 93177 lies in the constellation Lyra at right ascension 18h 59m and declination +40° 41′.

What telescope do I need to split HIP 93177?

Splitting HIP 93177 requires an aperture of roughly 60 mm or larger — the components are separated by about 19.0″ at magnitudes near 6.2. The companion is about 3.4 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 93177 — Double Star in Lyra

Magnitude 6.2^m DoubleStar Lyra (Lyr) Visible

Star Map + List + Plan Star Hop

Observe

1Physical Properties

Magnitude 6.22

Spectral Type B3V

Star Color Blue (B-V -0.16)

2Position & Identifiers

RA 18h 58m 46.6s

Dec +40° 40' 45.0"

Constellation Lyra (Lyr)

HR 7179

HIP 93177

HD 176502

SAO 47965

Double Cat 11910

SIMBAD

3How easy to split?

Primary 6.2 mag Companion 9.6 mag Separation 19.0″

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

Set a location in User Settings to see visibility data.

Best season May – Jul (peak: Jun)

5Multiple Star System

Separation 19.0″

Companion Mag 9.6

Position Angle 236°

Star Colors A: Blue B: Yellow-white

Discoverer STF2431

Notes

Companion 9.80V, +0.21(B-V), +0.07(U-B), A5V fixed.

Separation over time

Measured 1782 → 2013 (231 y)

Separation drift 19.8" → 19.0" (-0.80")

Rate -0.0035" / y

PA drift 246° → 236° (-10°, -0.043°/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.