Auriga

Aur · genitive Aurigae · northern sky

The Auriga 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
157
Visible to the eye
157 stars
Brightest star
Capella (0.08)
Best seen
December
Declination span
+28.6° to +54.3°
Nearest star
HD 37394 · 40 ly

Visible from everywhere north of about 36°S.

When and where to look for Auriga

Auriga crosses the meridian — its highest point in the sky — at local midnight around December, which makes the months from November to January the easiest time to find it in the evening. It spans declinations +28.6° to +54.3°, so visible from everywhere north of about 36°S.

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

Brightest stars in Auriga

StarMagTypeDistance
Capella13Alp Aur0.08M1: comp42.8 ly
Menkalinan34Bet Aur1.90A2V81.1 ly
Mahasim37The Aur2.65A0p Si165.6 ly
Hassaleh3Iot Aur2.69K3IIvar493.4 ly
Almaaz7Eps Aur3.03F0Ia2,131.7 ly
Haedus10Eta Aur3.18B3V243.4 ly

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

What Auriga is made of

The catalogue lists 157 stars within Auriga, of which 157 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

O1
B20
A40
F17
G11
K55
M12

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 37394 at 40 light years. The most distant is Almaaz at roughly 2,132 light years — stars that appear side by side here are nothing of the sort.

Nearby constellations