When is the best time to observe 41 Aquarii?

41 Aquarii is best observed from July through September, with peak visibility during August when it transits around midnight in the Northern Hemisphere.

Where is 41 Aquarii located in the sky?

41 Aquarii lies in the constellation Aquarius at right ascension 22h 14m and declination -21° 04′.

What telescope do I need to split 41 Aquarii?

Splitting 41 Aquarii requires an aperture of roughly 80 mm or larger — the components are separated by about 5.2″ at magnitudes near 5.3. Larger apertures and steady seeing help resolve the pair cleanly.

41 Aquarii — Double Star in Aquarius

Observable Double Star Excellent (74/100)

Sep: 5.2", Companion: mag 6.7

Magnitude 5.3^m DoubleStar Aquarius (Aqr) Visible

Star Map + List + Plan Star Hop

Observe

1Physical Properties

Magnitude 5.32

Spectral Type K0III+F2V giant

Star Color Orange (B-V 0.80)

Distance 204 ly

2Position & Identifiers

RA 22h 14m 18.0s

Dec -21° 04' 27.0"

Constellation Aquarius (Aqr)

HR 8480

HIP 109786

HD 210960

SAO 190986

Flamsteed 41 Aqr

Double Cat 15753

SIMBAD

3How easy to split?

Primary 5.3 mag Companion 6.7 mag Separation 5.2″

Sign in and configure your equipment and default location to see a personalized row.

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 Jul – Sep (peak: Aug)

5Multiple Star System Quadruple C: optical

Components 4 (quadruple)

Component IDs AB

Separation 5.2″

Companion Mag 6.7

Companion Sp F2V

Position Angle 112°

Star Colors A: Orange B: Yellow-white

Discoverer H N 56

Notes

AB binary. B is F8V.

Separation over time

Measured 1823 → 2016 (193 y)

Separation drift 5.2" → 5.2" (+0.00")

Rate +0.0000" / y

PA drift 121° → 112° (-9°, -0.047°/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.