When is the best time to observe Kappa Pyxidis?

Kappa Pyxidis is best observed from January through March, with peak visibility during February when it transits around midnight in the Northern Hemisphere.

Where is Kappa Pyxidis located in the sky?

Kappa Pyxidis lies in the constellation Boussole at right ascension 09h 08m and declination -25° 52′.

What telescope do I need to split Kappa Pyxidis?

Splitting Kappa Pyxidis requires an aperture of roughly 440 mm or larger — the components are separated by about 2.1″ at magnitudes near 4.6. The companion is about 5.5 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

Kappa Pyxidis — Étoile Double dans Boussole

Magnitude 4.6^m DoubleStar Boussole (Pyx) Visible

Carte du Ciel + Liste + Plan

Observer

1Propriétés Physiques

Magnitude 4.58

Type Spectral K4III géante

Couleur de l'Étoile Rouge (B-V 1.59)

Distance 251 ly

2Position et Identifiants

RA 09h 08m 02.9s

Dec -25° 51' 30.0"

Constellation Boussole (Pyx)

HR 3628

HIP 44824

HD 78541

SAO 177002

Bayer Kappa

Double Cat 7202

SIMBAD

3Facilité de séparation

Principale 4.6 mag Compagnon 10.1 mag Séparation 2.1″

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Télescope	Bortle 3	Bortle 4	Bortle 5
Réfracteur 80 mm Réfr. 80mm	T. diff.	T. diff.	T. diff.
Newton 150 mm Newt. 150mm	T. diff.+	T. diff.+	T. diff.+
Celestron C8 (SCT 203 mm) C8 203mm	T. diff.+	T. diff.+	T. diff.+