Triangulum
Tri
Rank: #78
132 sq. deg.
Triangulum is a small constellation in the northern sky. Its name is Latin for "triangle", derived from its three brightest stars, which form a long and narrow triangle. Known to the ancient Babylonians and Greeks, Triangulum was one of the 48 constellations listed by the 2nd century astronomer Ptolemy.
IAU constellation map showing the boundaries and main stars
Triangulum
| Genitive | Trianguli |
| Symbolism | The Triangulum |
| Right ascension | 02h 00m 00s |
| Declination | +30° 00' 00" |
| Area | |
| Area rank | 78 |
| Brightest star | |
| Best visible at 21:00 | Variable |
Deep-Sky Objects Summary
33
Brightest Stars
0
Open Clusters
1
Globular Clusters
31
Galaxies
0
Nebulae
Brightest Stars
| Designation | Name | Apparent magnitude | Right ascension | Declination | Spectral type |
|---|
Globular Clusters
| Designation | Name | Apparent magnitude | Right ascension | Declination | Angular size |
|---|
Galaxies
| Designation | Name | Apparent magnitude | Right ascension | Declination | Type |
|---|