Triangulum constellation
Latin Triangulum, genitive Trianguli, abbreviation Tri
North up, east to the left, as you see the sky. The lines are a common figure; the stars are from the catalogue.
The myth
A triangle already for the Greeks, the Nile delta to some, the island of Sicily to others. Three faint stars between the Ram and Andromeda. Close by lies the Triangulum Galaxy, on a very dark night just perceptible to some eyes without binoculars.
When can Triangulum be seen?
It stands highest around 10 pm in November. It can be seen from everywhere north of 48°S, and it never sets north of 60°N.
The brightest stars
| Star | Designation | Magnitude | Colour |
|---|---|---|---|
| Mizan | β Tri | 3.00 | white |
| Mothallah | α Tri | 3.41 | yellowish white |
| – | γ Tri | 4.01 | white |
| – | δ Tri | 4.87 | yellow |
| – | 6 Tri | 4.94 | yellow |
The smaller the number, the brighter: below 1 are the brightest stars of the sky, 4 is hard to see under a city sky. Greek letters after Johann Bayer (1603).