When is the best time to observe HIP 110171?

HIP 110171 is best observed from July through September, with peak visibility during August when it transits around midnight in the Northern Hemisphere.

Where is HIP 110171 located in the sky?

HIP 110171 lies in the constellation Lacerta at right ascension 22h 19m and declination +37° 46′.

What telescope do I need to split HIP 110171?

Splitting HIP 110171 requires an aperture of roughly 60 mm or larger — the components are separated by about 15.8″ at magnitudes near 6.2. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 110171 — Double Star in Lacerta

Magnitude 6.2^m DoubleStar Lacerta (Lac) Visible

Star Map + List + Plan Star Hop

Observe

1Physical Properties

Magnitude 6.17

Spectral Type A9IIIp bright giant

Star Color Yellow-white (B-V 0.28)

Distance 251 ly

2Position & Identifiers

RA 22h 18m 56.2s

Dec +37° 46' 10.0"

Constellation Lacerta (Lac)

HR 8510

HIP 110171

HD 211797

SAO 72228

Double Cat 15828

SIMBAD

3How easy to split?

Primary 6.2 mag Companion 8.9 mag Separation 15.8″

Sign in and configure your equipment and default location to see a personalized row.

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

5Multiple Star System Quadruple D,E: optical

Components 4 (quadruple)

Component IDs AB

Separation 15.8″

Companion Mag 8.8

Position Angle 194°

Star Colors A: Yellow-white B: Yellow

Discoverer STF2894

Notes

AB binary.

Separation over time

Measured 1779 → 2020 (241 y)

Separation drift 13.7" → 15.8" (+2.10")

Rate +0.0087" / y

PA drift 194° → 194° (+0°, +0.000°/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.