Triangulum Galaxy (M33) Observation Details
M33 Daily Motion
Tonight, observing M33 may prove challenging owing to its low elevation. It will reach its transit at by 13:17 and set before sunset at 21:15. Rising near twilight's end at 05:15, it will fade away by 05:45, peaking at just 4° above the horizon.M33 will become visible in June, 10. After being too close to the Sun to observe, it will reappear in the night sky. Starting from June, 10, M33 can be seen again, providing a good opportunity for observation.
M33 Visibility Timetable on April 19
M33 Rise and Set Timetable
| Time | Elevation | |
| M33 transit | 13:17 | 81° |
| Sunset | 20:12 | 10° |
| Civil sunset | 20:42 | 5° |
| M33 set | 21:15 | |
| Astrosession begin | 21:52 | -5° |
| Moon Rise, 68.2% illuminated | 02:05 | -18° |
| Astrosession end | 05:09 | -1° |
| M33 rise | 05:15 | |
| Civil sunrise | 06:19 | 10° |
| Sunrise | 06:49 | 15° |
| Moon Set | 10:52 | 60° |
Track M33 Position Throughout the Night
← Sat, 19 April 2025 →
| Time | |
| Altitude | |
| Azimuth |
M33 - Triangulum Galaxy
The Triangulum Galaxy (M33) is a spiral galaxy located in the constellation Triangulum. It was discovered by Giovanni Battista Hodierna before 1654 and independently by Charles Messier in 1764. M33 is the third-largest member of the Local Group of galaxies, which includes the Milky Way and the Andromeda Galaxy.
M33 spans about 60,000 light-years across and contains approximately 40 billion stars. The galaxy is approximately 2.73 million light-years away from Earth and has an apparent magnitude of 5.7, making it visible to the naked eye under dark skies and easily seen with binoculars or a small telescope.
M33 Image Gallery
DSS Blue
DSS Red
DSS Near-Infrared
DSS Composite image
The photos are taken from the Digitized Sky Survey 2 (DSS2), which was produced at the Space Telescope Science Institute (STScI) under NASA contract, using data from the UK Science and Technology Facilities Council (STFC), the European Southern Observatory (ESO), and the National Geographic Society-Palomar Observatory Sky Survey (POSS II).
Special thanks to the National Optical Astronomy Observatory (NOAO), the Royal Observatory, Edinburgh, and the California Institute of Technology for their significant contributions.
Finder Chart for M33
| Object name | M33 |
| Field of view | |
| Limiting magnitude | |
| M33 coordinates | 1.56414, 30.66022 |
| Center coordinates | 1.56414, 30.66022 |
M33 Passage Through Night
Current position of M33
| Time | 22:00 |
| Latitude | 39.9625 |
| Longitude | -83.0061 |
| M33 elevation | -6° |
| M33 Azimuth | 41° |
Annual motion of M33
| Date | Sun, 20 April 2025 |
| Twighlight start | 21:53 |
| Twighlight end | 05:06 |
| Twighlight duration | 7h 14m |
| Rise | 05:15 |
| Set | 21:11 |
| Elevation at transit | 81° |
| Transit time | 13:13 |
| Equatorial coordinates | RA: 01h 33m 50s", Dec: 30° 39' 36s |
| Magnitude | 6 |
| Constellation | Triangulum |
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the M33 is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
Data Credits
The nebulae information on this page is sourced from the OpenNGC project, developed by Matteo Verga. OpenNGC provides detailed data on the NGC catalog, which is a valuable resource for exploring deep-sky objects such as nebulae.
For more details or to contribute to OpenNGC, visit the official GitHub repository: OpenNGC on GitHub.