When is the best time to observe HIP 70327?

HIP 70327 is best observed from March through May, with peak visibility during April when it transits around midnight in the Northern Hemisphere.

Where is HIP 70327 located in the sky?

HIP 70327 lies in the constellation Boötes at right ascension 14h 23m and declination +08° 27′.

What telescope do I need to split HIP 70327?

Splitting HIP 70327 requires an aperture of roughly 80 mm or larger — the components are separated by about 6.4″ at magnitudes near 5.1. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 70327 — Double Star in Boötes

Observable Double Star Excellent (67/100)

Sep: 6.4", Companion: mag 6.8

Magnitude 5.1^m DoubleStar Boötes (Boo) Visible

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Observe

1Physical Properties

Magnitude 5.12

Spectral Type A0V

Star Color Blue-white (B-V -0.02)

Distance 204 ly

2Position & Identifiers

RA 14h 23m 22.7s

Dec +08° 26' 48.0"

Constellation Boötes (Boo)

HR 5386

HIP 70327

HD 126129

SAO 120426

Double Cat 9247

SIMBAD

3How easy to split?

Primary 5.1 mag Companion 6.8 mag Separation 6.4″

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	Easy	Easy	Easy
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 Mar – May (peak: Apr)

5Multiple Star System Triple

Components 3 (triple)

Component IDs AxBC

Separation 6.4″

Companion Mag 6.8

Companion Sp F2V

Position Angle 25°

Star Colors A: Blue-white C: Yellow-white

Discoverer BU 1111

Notes

Binary with HR 5385.

Separation over time

Measured 1889 → 2020 (131 y)

Separation drift 0.20" → 6.4" (+6.20")

Rate +0.0473" / y

PA drift 135° → 25° (-110°, -0.840°/y)

Apparent motion is significant on a human timescale — worth revisiting in a decade.

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.