When is the best time to observe HIP 70786?

HIP 70786 is best observed from March through May, with peak visibility during April when it transits around midnight in the Northern Hemisphere.

Where is HIP 70786 located in the sky?

HIP 70786 lies in the constellation Boötes at right ascension 14h 29m and declination +28° 17′.

What telescope do I need to split HIP 70786?

Splitting HIP 70786 requires an aperture of roughly 60 mm or larger — the components are separated by about 25.3″ at magnitudes near 7.1. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 70786 — Double Star in Boötes

Magnitude 7.1^m DoubleStar Boötes (Boo) Visible

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Observe

1Physical Properties

Magnitude 7.12

Spectral Type A1V

Star Color White (B-V -0.03)

2Position & Identifiers

RA 14h 28m 33.3s

Dec +28° 17' 27.0"

Constellation Boötes (Boo)

HR 5415

HIP 70786

HD 127067

SAO 83374

Double Cat 9277

SIMBAD

3How easy to split?

Primary 7.1 mag Companion 7.6 mag Separation 25.3″

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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

Separation 25.3″

Companion Mag 7.6

Companion Sp A1V

Position Angle 262°

Star Colors A: White B: White

Discoverer STF1850

Notes

Fixed with HR 5414.

Separation over time

Measured 1823 → 2023 (200 y)

Separation drift 25.8" → 25.3" (-0.50")

Rate -0.0025" / y

PA drift 262° → 262° (+0°, +0.000°/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.