When is the best time to observe HIP 82453?

HIP 82453 is best observed from April through June, with peak visibility during May when it transits around midnight in the Northern Hemisphere.

Where is HIP 82453 located in the sky?

HIP 82453 lies in the constellation Scorpius at right ascension 16h 51m and declination -37° 31′.

What telescope do I need to split HIP 82453?

Splitting HIP 82453 requires an aperture of roughly 80 mm or larger — the components are separated by about 6.8″ at magnitudes near 6.1. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 82453 — Double Star in Scorpius

Magnitude 6.1^m DoubleStar Scorpius (Sco) Visible

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Observe

1Physical Properties

Magnitude 6.11

Spectral Type B9pSi*

Star Color Blue-white (B-V 0.12)

Distance 544 ly

2Position & Identifiers

RA 16h 50m 59.8s

Dec -37° 30' 52.0"

Constellation Scorpius (Sco)

HR 6244

HIP 82453

HD 151771

SAO 208089

Variable ID Var?

SIMBAD

3How easy to split?

Primary 6.1 mag Companion 7.8 mag Separation 6.8″

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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 Apr – Jun (peak: May)

5Multiple Star System

Separation 6.8″

Companion Mag 7.8

Position Angle 4°

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

Discoverer HJ 4889

Separation over time

Measured 1834 → 2018 (184 y)

Separation drift 4.0" → 6.8" (+2.80")

Rate +0.0152" / y

PA drift 7° → 4° (-3°, -0.016°/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.