M37 Observation Details
M37 Daily Motion
M37 will rise at 22:24, during twilight, and will ascend to 57° by the time twilight ends at 03:39.M37 will be visible until May, 7, when it will move too close to the Sun. During this time, its proximity to the Sun will cause it to disappear from the night sky, making it unobservable for a while.
M37 Visibility Timetable on August 31
M37 Rise and Set Timetable
| Time | Elevation | |
| Moon Rise, 46.4% illuminated | 11:58 | 23° |
| Astrosession begin | 19:10 | -19° |
| Moon Set | 21:19 | -9° |
| M37 rise | 22:24 | |
| Astrosession end | 03:06 | 50° |
| Civil sunrise | 04:11 | 63° |
| Sunrise | 04:39 | 69° |
| M37 transit | 06:19 | 85° |
Track M37 Position Throughout the Night
← Sun, 31 August 2025 →
| Time | |
| Altitude | |
| Azimuth |
Where is M37 right now?
M37 is located in the constellation Auriga, at right ascension 05h 52m 18s" and declination 32° 33' 10s. Although it is currently above the horizon at an altitude of 28 degrees, M37 is not visible because it is daytime.M37 - Open Cluster
M37 is an open cluster located in the constellation Auriga. It was discovered by Giovanni Battista Hodierna before 1654 and independently by Charles Messier in 1764. The cluster is the richest and brightest of the three open clusters in Auriga (M36, M37, and M38).
M37 spans about 20 light-years across and contains around 500 stars. The cluster is approximately 4,500 light-years away from Earth and has an apparent magnitude of 6.2, making it visible with binoculars or a small telescope.
M37 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 M37
| Object name | M37 |
| Field of view | |
| Limiting magnitude | |
| M37 coordinates | 5.87176, 32.553 |
| Center coordinates | 5.87176, 32.553 |
M37 Passage Through Night
Current position of M37
| Time | 11:35 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| M37 elevation | 28° |
| M37 Azimuth | 69° |
Annual motion of M37
| Date | Sun, 31 August 2025 |
| Twighlight start | 19:06 |
| Twighlight end | 02:59 |
| Twighlight duration | 8h 54m |
| Rise | 22:24 |
| Set | 14:15 |
| Elevation at transit | 85° |
| Transit time | 06:19 |
| Equatorial coordinates | RA: 05h 52m 18s", Dec: 32° 33' 10s |
| Magnitude | 6 |
| Constellation | Auriga |
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 M37 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.
Astrometric & Physical Parameters of M37
Coordinates & Visibility
| Right Ascension | 5.87176° |
| Declination | 32.553° |
| Magnitude | 5.60 |
| Constellation | Auriga |
| Elevation | 27.7° |
| Azimuth | 68.7° |
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.