When is the best time to observe HIP 70892?

HIP 70892 is best observed from March through May, with peak visibility during April when it transits around midnight in the Northern Hemisphere.

Where is HIP 70892 located in the sky?

HIP 70892 lies in the constellation Boötes at right ascension 14h 30m and declination +31° 47′.

What telescope do I need to split HIP 70892?

Splitting HIP 70892 requires an aperture of roughly 60 mm or larger — the components are separated by about 26.7″ at magnitudes near 6.1. The companion is about 4.6 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 70892 — Double Star in Boötes

Magnitude 6.1^m DoubleStar Boötes (Boo) Visible

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Observe

1Physical Properties

Magnitude 6.06

Spectral Type A0V s

Star Color Blue-white (B-V -0.03)

2Position & Identifiers

RA 14h 29m 49.7s

Dec +31° 47' 28.0"

Constellation Boötes (Boo)

HR 5422

HIP 70892

HD 127304

SAO 64178

Double Cat 9288

SIMBAD

3How easy to split?

Primary 6.1 mag Companion 10.6 mag Separation 26.7″

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	Medium	Hard+	Hard
150 mm Newton 150mm Newt.	Easy	Medium+	Medium
Celestron C8 (203 mm SCT) C8 203mm	Easy	Easy	Medium+

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 C: optical

Component IDs AB

Separation 26.7″

Companion Mag 10.6

Position Angle 255°

Star Colors A: Blue-white B: Yellow

Discoverer STF1854

Notes

Companion K1V.

Separation over time

Measured 1879 → 2017 (138 y)

Separation drift 26.3" → 26.7" (+0.40")

Rate +0.0029" / y

PA drift 257° → 255° (-2°, -0.014°/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.