Cambridge Encyclopedia :: Cambridge Encyclopedia Vol. 76

Triangulum

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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