When is the best time to observe HIP 79081?

HIP 79081 is best observed from April through June, with peak visibility during May when it transits around midnight in the Northern Hemisphere.

Where is HIP 79081 located in the sky?

HIP 79081 lies in the constellation Scorpius at right ascension 16h 09m and declination -39° 06′.

What telescope do I need to split HIP 79081?

Splitting HIP 79081 requires an aperture of roughly 60 mm or larger — the components are separated by about 44.4″ at magnitudes near 6.7. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 79081 — Double Star in Scorpius

DoubleStar Scorpius (Sco) Visible

Star Map + List + Plan Star Hop

Observe

1Physical Properties

Magnitude 6.65

Range 6.63 - 6.67

Period 2.0 days

Variable Type ACV:

Spectral Type A0-3III

Star Color Blue-white (B-V -0.07)

2Position & Identifiers

RA 16h 08m 34.4s

Dec -39° 05' 35.0"

Constellation Scorpius (Sco)

HR 6000

HIP 79081

HD 144667

SIMBAD

3How easy to split?

Primary 6.7 mag Companion 7.1 mag Separation 44.4″

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

Set a location in User Settings to see visibility data.

Best season Apr – Jun (peak: May)

5Light Curve

6Multiple Star System Quadruple

Components 4 (quadruple)

Component IDs AC

Separation 44.4″

Companion Mag 7.1

Position Angle 184°

Star Colors A: Blue-white

Discoverer DUN 199

Notes

CPM with HR 5999. Component B, 13v at 298".

Separation over time

Measured 1835 → 2018 (183 y)

Separation drift 45.0" → 44.4" (-0.60")

Rate -0.0033" / y

PA drift 185° → 184° (-1°, -0.005°/y)

Slow change over generations — observable in lifetime comparisons.

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.