A small but distinctive N constellation between Aries and Andromeda. It includes the notable spiral galaxy M33. There is also a prominent S constellation Triangulum Australe (southern triangle).
| Triangulum | |||||
|---|---|---|---|---|---|
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| Abbreviation | Tri | ||||
| Genitive | Trianguli | ||||
| Symbology | Sicilia | ||||
| Right ascension | 2 h | ||||
| Declination | 30° | ||||
| Area | 132 sq. | Ly away | Comments | ||
| β | 4 | Beta Trianguli | 3.00 | 124 | |
| α | 2 | Alpha Trianguli, Mathallah, Metallah, Ras al Mothallah, Elmuthalleth, Caput Trianguli | 3.42 | 64.1 | رأس المثلث ra's[u] al-muθallaθ Head of the triangle |
| γ | 9 | Gamma Trianguli | 4.03 | 118 | |
| δ | 8 | Delta Trianguli | 4.84 | 35.4 | |
| 6 | 6 Trianguli | 4.94 | |||
| 14 | 14 Trianguli | 5.15 | |||
| 7 | 7 Trianguli | 5.25 | |||
| 10 | 10 Trianguli | 5.29 | |||
| 12 | 12 Trianguli | 5.29 | |||
| 15 | 15 Trianguli | 5.38 | |||
| ε | 3 | Epsilon Trianguli | 5.50 | 370 | |
| 11 | 11 Trianguli | 5.55 | |||
| 13 | 13 Trianguli | 5.89 | |||
| 5 | 5 Trianguli | 6.24 | 480 | ||
Source: The Bright Star Catalogue, 5th Revised Ed., The Hipparcos Catalogue, ESA SP-1200
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