Triangulum (The Triangle) Constellation
Triangulum (pronounced traɪˈæŋɡjʊləm) is the Latin name of a constellation situated north of the celestial equator. As such, it is more easily visible from the northern hemisphere.
In English language this constellation is also known as "The Triangle" while in astronomical texts and literature this constellation is often abbreviated as "Tri" (according to the standard of the International Astronomical Union - IAU) or as "Tria" (according to a naming convention used by NASA).
The Latin genitive of the constellation name is "Trianguli" (pronounced traɪˈæŋɡjʊlaɪ) and it is used to identify some of the brightest stars in this constellation based on the Bayer or Flamsteed star naming convention. For instance: α Trianguli (the brightest star of Triangulum based on the Bayer catalog); or 23 Trianguli (the 23th star in the constellation of Triangulum based on the Flamsteed catalog).
Sky Chart of Triangulum Constellation
Here we provide a simplified sky chart of the Triangulum constellation. Alternatively it is possible to locate Triangulum in the night sky using our Online Interactive Planetarium.
Visibility of Triangulum Constellation
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's Triangulum rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
The rise and set times provided here are just directional indications and they refer to a point approximately placed at the center of the constellation. In case of very large constellations these times can have little relevance.
Bright Stars in Triangulum Constellation
The table below lists the top 20 brightest stars in the Triangulum constellation. See also the complete list of 26 stars brighter than magnitude 6.5 (approximate) in the constellation of Triangulum. Click on each star to see more details about it.
|HR Number(*)||Star designation||Proper name||Visual magnitude||Color||Notes|
|HR642||6 Trianguli||4.94||⬤||Variable; Double;|
|HR750||15 Trianguli||5.35||⬤||Variable; Double;|
|HR599||ε Trianguli||5.5||⬤||Variable; Double;|
|...go to the complete list of 26 bright stars in the constellation of Triangulum|
(*) HR stands for Harvard Revised Bright Star Catalogue, which is also known as the Yale Catalogue of Bright Stars.
Deep Sky Objects in Triangulum Constellation
The table below lists the 20 brightest deep sky objects in the Triangulum constellation. See also the complete list of 113 deep sky objects in the constellation of Triangulum. The list includes objects from the Messier, New General Catalogue (NGC) and Index Catalogue (IC).