Triangulum Constellation
Double-click to unlock the map.
Triangulum, the triangle, is a small constellation in the northern sky known for containing the Triangulum Galaxy (M33), a member of the Local Group.
Triangulum Rise and Set Timetable
| Time | Elevation | |
Moonrise, 96.4% illuminated  | 18:23 | -4° |
| Triangulum rise | 18:51 | |
| Astronomical observing session begins | 23:24 | 49° |
| Triangulum transit | 02:43 | 84° |
| Astronomical observing session ends | 03:38 | 77° |
| Civil sunrise | 04:10 | 71° |
| Sunrise | 04:38 | 66° |
| Moonset | 07:13 | 35° |
| Triangulum set | 10:35 |
Track Triangulum Position Throughout the Night
← 30 August 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Triangulum changing position in the night sky.
Nebulae in the constellation Triangulum
IC0135
HII Ionized region
IC0135 is a hii ionized region with apparent magnitude in the constellation Triangulum, spanning approximately 0.4 arcseconds in the sky.
IC0137
Association of stars
IC0137 is an association of stars with apparent magnitude in the constellation Triangulum.
IC0140
Association of stars
IC0140 is an association of stars with apparent magnitude in the constellation Triangulum.
NGC0592
Association of stars
NGC0592 is an association of stars with apparent magnitude in the constellation Triangulum.
NGC0595
HII Ionized region
NGC0595 is a hii ionized region with apparent magnitude in the constellation Triangulum, spanning approximately 1.7 arcseconds in the sky.
Triangulum Galaxy (M33)
Galaxy
The Triangulum Galaxy, a spiral galaxy containing approximately 40 billion stars, located approximately 3 million light-years away.
NGC0604
HII Ionized region
NGC0604 is a hii ionized region with apparent magnitude in the constellation Triangulum, spanning approximately 1.9 arcseconds in the sky.
NGC0970
Galaxy Pair
NGC0970 is a galaxy pair with apparent magnitude in the constellation Triangulum, spanning approximately 1 arcsecond in the sky.
NGC0978
Galaxy Pair
NGC0978 is a galaxy pair with apparent magnitude in the constellation Triangulum, spanning approximately 1.9 arcseconds in the sky.
Annual motion of Triangulum
| Date | Mon, 31 August 2026 |
| Twilight start | 19:06 |
| Twilight end | 02:59 |
| Twilight duration | 8h 53m |
| Rise | 18:47 |
| Set | 10:31 |
| Elevation at transit | 84° |
| Transit time | 02:39 |
| Equatorial coordinates | RA: 02h 10m 17s", Dec: 31° 50' 27s |
| Magnitude | - |
| Constellation |
The graph illustrates the constellation’s annual visibility pattern and its daily rise, set, and transit times throughout the year.
The vertical axis shows the hours of the day, while the horizontal axis spans the days of the year.
The reddish area marks when the constellation is above the horizon. The white line shows when it reaches its highest point in the sky. View detailed visibility information in a table with rise, transit, and set times for each date.
The vertical axis shows the hours of the day, while the horizontal axis spans the days of the year.
The reddish area marks when the constellation is above the horizon. The white line shows when it reaches its highest point in the sky. View detailed visibility information in a table with rise, transit, and set times for each date.
Acknowledgements
We gratefully acknowledge the International Astronomical Union (IAU) for defining and standardizing the official constellation boundaries used in celestial mapping.
Special thanks to Sky & Telescope Magazine and contributors Roger Sinnott and Rick Fienberg for producing the charts and tables. Alan MacRobert’s constellation patterns were influenced by the work of H. A. Rey and adjusted to align with earlier traditions.