When is the best time to observe HIP 11593?

HIP 11593 is best observed from September through November, with peak visibility during October when it transits around midnight in the Northern Hemisphere.

Where is HIP 11593 located in the sky?

HIP 11593 lies in the constellation Perseus at right ascension 02h 29m and declination +55° 32′.

What telescope do I need to split HIP 11593?

Splitting HIP 11593 requires an aperture of roughly 100 mm or larger — the components are separated by about 2.9″ at magnitudes near 6.5. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 11593 — Double Star in Perseus

Magnitude 6.5^m DoubleStar Perseus (Per) Visible

Star Map + List + Plan Star Hop

Observe

1Physical Properties

Magnitude 6.51

Variable Type Ellipsoidal Variable

Spectral Type A2pShell

Star Color White (B-V 0.09)

2Position & Identifiers

RA 02h 29m 25.0s

Dec +55° 32' 11.0"

Constellation Perseus (Per)

HR 716

HIP 11593

HD 15253

SAO 23369

Double Cat 1878

SIMBAD

3How easy to split?

Primary 6.5 mag Companion 8.5 mag Separation 2.9″

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.	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 Sep – Nov (peak: Oct)

5Multiple Star System

Separation 2.9″

Companion Mag 8.5

Position Angle 131°

Star Colors A: White B: Yellow-white

Discoverer STF 268

Notes

Companion A3IV.

Separation over time

Measured 1828 → 2018 (190 y)

Separation drift 2.5" → 2.9" (+0.40")

Rate +0.0021" / y

PA drift 132° → 131° (-1°, -0.005°/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.