Triangulum Australe constellation
Triangulum Australe is one of the 88 constellations, and it represents the southern triangle. It is highest in the sky at midnight around May 23, and its whole figure rises above the horizon from 21°N to 90°S.
Triangulum Australe at a glance
- Represents
- the southern triangle
- Highest at midnight
- May 23
- Highest at 9 pm
- July 7
- Seen whole from
- 21°N to 90°S
- Brightest star
- Atria
- Stars in the figure
- 3 stars
- Origin
- Dutch navigators, 1590s
When to see Triangulum Australe
Triangulum Australe is highest in the sky at midnight around May 23 and at 9 pm around July 7. Each month it is highest about two hours earlier than the month before.
The times are local solar time. Clocks on daylight saving time read about one hour later.
| Date | Highest at |
|---|---|
| January 15 | 8:20 a.m. |
| February 15 | 6:20 a.m. |
| March 15 | 4:30 a.m. |
| April 15 | 2:30 a.m. |
| May 15 | 12:30 a.m. |
| June 15 | 10:30 p.m. |
| July 15 | 8:30 p.m. |
| August 15 | 6:30 p.m. |
| September 15 | 4:20 p.m. |
| October 15 | 2:30 p.m. |
| November 15 | 12:20 p.m. |
| December 15 | 10:30 a.m. |
Where to look for Triangulum Australe
From the northern hemisphere
From 40°N, Triangulum Australe never rises. You need to be south of 26°N to see any of it.
From the southern hemisphere
From 35°S, Triangulum Australe never sets. It circles the pole and is highest around midnight on May 23, 58° above the southern horizon.
Brightest stars in Triangulum Australe
| Star | Magnitude |
|---|---|
| Atria | 1.91 |
Triangulum Australe in myth and history
Triangulum Australe was added in the 1590s from the southern stars that the Dutch navigators Pieter Dirkszoon Keyser and Frederick de Houtman recorded.
Constellations next to Triangulum Australe
Find Triangulum Australe in your sky
Questions about Triangulum Australe
Triangulum Australe is highest in the sky at midnight around May 23 and at 9 pm around July 7. The weeks around those dates are the best time to look.
The whole figure of Triangulum Australe rises above the horizon from 21°N to 90°S, and at least part of it rises from 26°N to 90°S.
Atria is the brightest star in Triangulum Australe, at magnitude 1.91.
Triangulum Australe represents the southern triangle. Triangulum Australe was added in the 1590s from the southern stars that the Dutch navigators Pieter Dirkszoon Keyser and Frederick de Houtman recorded.