Ara
Ara · genitive Arae · southern sky
At a glance
- Catalogued stars
- 72
- Visible to the eye
- 72 stars
- Brightest star
- Bet Ara (2.84)
- Best seen
- June
- Declination span
- -60.7° to -49.9°
- Nearest star
- HD 156274 · 28.7 ly
Visible from everywhere south of about 29°N.
When and where to look for Ara
Ara crosses the meridian — its highest point in the sky — at local midnight around June, which makes the months from May to July the easiest time to find it in the evening. It spans declinations -60.7° to -49.9°, so visible from everywhere south of about 29°N.
The quickest way to find it is to open the live AR sky map and point your phone at the sky — if Ara is above your horizon right now, its figure is drawn in the position it genuinely occupies above you.
Brightest stars in Ara
| Star | Mag | Type | Distance |
|---|---|---|---|
| Bet Ara | 2.84 | K3Ib-II | 645.9 ly |
| Alp Ara | 2.84 | B2Vne | 267.3 ly |
| Zet Ara | 3.12 | K5III | 486.1 ly |
| Gam Ara | 3.31 | B1Ib | 1,113.2 ly |
| Del Ara | 3.60 | B8V | 197.9 ly |
| The Ara | 3.65 | B2Ib | 813.4 ly |
Magnitude runs backwards: lower numbers are brighter, and anything below about 6.5 is beyond the naked eye under a dark sky.
What Ara is made of
The catalogue lists 72 stars within Ara, of which 72 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
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 156274 at 28.7 light years. The most distant is HD 157662 at roughly 2,965 light years — stars that appear side by side here are nothing of the sort.