When is the best time to observe HIP 93209?

HIP 93209 is best observed from May through July, with peak visibility during June when it transits around midnight in the Northern Hemisphere.

Where is HIP 93209 located in the sky?

HIP 93209 lies in the constellation Corona Australis at right ascension 18h 59m and declination -39° 32′.

What telescope do I need to split HIP 93209?

Splitting HIP 93209 requires an aperture of roughly 60 mm or larger — the components are separated by about 16.1″ at magnitudes near 6.5. The companion is about 5.3 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 93209 — Double Star in Corona Australis

Magnitude 6.5^m DoubleStar Corona Australis (CrA) Visible

Star Map + List + Plan Star Hop

Observe

1Physical Properties

Magnitude 6.49

Spectral Type A0

Star Color Blue-white (B-V -0.04)

2Position & Identifiers

RA 18h 59m 11.1s

Dec -39° 32' 05.0"

Constellation Corona Australis (CrA)

HR 7156

HIP 93209

HD 175855

SAO 210786

SIMBAD

3How easy to split?

Primary 6.5 mag Companion 11.8 mag Separation 16.1″

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

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 May – Jul (peak: Jun)

5Multiple Star System

Separation 16.1″

Companion Mag 11.8

Position Angle 246°

Star Colors A: Blue-white

Discoverer HJ 5074

Separation over time

Measured 1836 → 2016 (180 y)

Separation drift 12.0" → 16.1" (+4.10")

Rate +0.0228" / y

PA drift 245° → 246° (+1°, +0.006°/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.