Pyxis

Pyx · genitive Pyxidis · southern sky

The Pyxis figure as the IAU defines it, drawn looking south with east to the left — the orientation you see standing outside.

At a glance

Catalogued stars
43
Visible to the eye
43 stars
Brightest star
Alp Pyx (3.68)
Best seen
January
Declination span
-40.0° to -27.7°
Nearest star
HD 72673 · 39.8 ly

Visible from everywhere south of about 50°N.

When and where to look for Pyxis

Pyxis crosses the meridian — its highest point in the sky — at local midnight around January, which makes the months from December to February the easiest time to find it in the evening. It spans declinations -40.0° to -27.7°, so visible from everywhere south of about 50°N.

The quickest way to find it is to open the live AR sky map and point your phone at the sky — if Pyxis is above your horizon right now, its figure is drawn in the position it genuinely occupies above you.

Brightest stars in Pyxis

StarMagTypeDistance
Alp Pyx3.68B1.5III879.1 ly
Bet Pyx3.97G5II/III416 ly
Gam Pyx4.02K3III207.3 ly
Kap Pyx4.62K4/K5III560.4 ly
The Pyx4.71M0III502.6 ly
Lam Pyx4.71G8III192.1 ly

Magnitude runs backwards: lower numbers are brighter, and anything below about 6.5 is beyond the naked eye under a dark sky.

What Pyxis is made of

The catalogue lists 43 stars within Pyxis, of which 43 are magnitude 6.5 or brighter — the limit of what an unaided eye picks up under a genuinely dark sky. The rest need binoculars or a telescope.

Spectral make-up

B8
A11
F2
G11
K8
M3

Spectral class is a temperature ordering, running from O at around 30,000 K down to M below 3,500 K. A constellation is a direction, not a group, so this is simply what happens to lie along that line of sight.

The closest catalogued star in this direction is HD 72673 at 39.8 light years. The most distant is HD 81753 at roughly 2,051 light years — stars that appear side by side here are nothing of the sort.

Nearby constellations