Pegasus
Peg · genitive Pegasi · northern sky
At a glance
- Catalogued stars
- 182
- Visible to the eye
- 182 stars
- Brightest star
- Enif (2.38)
- Best seen
- August
- Declination span
- +6.2° to +33.2°
- Nearest star
- 24Iot Peg · 38.2 ly
Visible from everywhere north of about 57°S.
When and where to look for Pegasus
Pegasus crosses the meridian — its highest point in the sky — at local midnight around August, which makes the months from July to September the easiest time to find it in the evening. It spans declinations +6.2° to +33.2°, so visible from everywhere north of about 57°S.
The quickest way to find it is to open the live AR sky map and point your phone at the sky — if Pegasus is above your horizon right now, its figure is drawn in the position it genuinely occupies above you.
Brightest stars in Pegasus
| Star | Mag | Type | Distance |
|---|---|---|---|
| Enif8Eps Peg | 2.38 | K2Ibvar | 689.5 ly |
| Scheat53Bet Peg | 2.44 | M2II-IIIvar | 196 ly |
| Markab54Alp Peg | 2.49 | B9.5III | 133.3 ly |
| Algenib88Gam Peg | 2.83 | B2IV | 391.5 ly |
| Matar44Eta Peg | 2.93 | G2II-III.. | 214.3 ly |
| Homam42Zet Peg | 3.41 | B8.5V | 204.4 ly |
Magnitude runs backwards: lower numbers are brighter, and anything below about 6.5 is beyond the naked eye under a dark sky.
What Pegasus is made of
The catalogue lists 182 stars within Pegasus, of which 182 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 24Iot Peg at 38.2 light years. The most distant is HD 209288 at roughly 1,953 light years — stars that appear side by side here are nothing of the sort.