Observation details: comet C/2026 M3 (MASTER)
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Daily motion of C/2026 M3 (MASTER)
90004970 C/2026 M3 (MASTER) will remain visible until December 9, when it moves too close to the Sun and temporarily disappears from the night sky.
C/2026 M3 (MASTER) visibility on 2026-09-16
C/2026 M3 (MASTER) Visible from sunset until early morning
C/2026 M3 (MASTER) rise and set timetable
| Time | Elevation | |
Moonrise, 16% illuminated  | 09:41 | -6° |
| Sunset | 17:13 | 75° |
| C/2026 M3 (MASTER) transit | 17:33 | 76° |
| Civil sunset | 17:41 | 76° |
| Twilight start (−12°) | 18:12 | 74° |
| Astronomical observing session begins | 18:43 | 69° |
| Moonset | 19:28 | 61° |
| C/2026 M3 (MASTER) set | 00:48 | |
| Astronomical observing session ends | 03:22 | -22° |
| C/2026 M3 (MASTER) rise | 10:14 |
Track C/2026 M3 (MASTER) position throughout the night
← 16 September 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe C/2026 M3 (MASTER) changing position in the night sky.
C/2026 M3 (MASTER) Description
This comet is designated 90004970 C/2026 M3 (MASTER), hyperbolic comet. It is currently 11.935 AU (1,785,461,059 km) from Earth, and is located in the constellation Hercules.Current position in the Solar System: C/2026 M3 (MASTER)
| Date | Wed, 16 September 2026 |
| Distance from Earth | 11.93507 AU (1,785,461,059km) |
| Elongation | 96° |
| Angular diameter | " |
| Magnitude | 19.9 |
Finder Chart for
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| Object name | |
| Field of view | |
| Limiting magnitude | |
| coordinates | 18.09468, 23.22239 |
| Center coordinates | 18.09468, 23.22239 |
Annual motion of C/2026 M3 (MASTER)
| Date | Thu, 17 September 2026 |
| Twilight start | 18:37 |
| Twilight end | 03:17 |
| Twilight duration | 9h 40m |
| Rise | 10:14 |
| Set | 00:44 |
| Elevation at transit | 76° |
| Transit time | 17:29 |
| Equatorial coordinates | RA: 18h 05m 36s", Dec: 23° 11' 45s |
| Magnitude | 20 |
| Constellation | Hercules |
The graph summarizes the object’s annual visibility, daily observing windows and transit times.
The vertical axis shows time of day and the horizontal axis shows the days of the year.
The shaded area marks when the object is above the horizon; the white line marks daily transit. You can also view the detailed annual visibility table.
The vertical axis shows time of day and the horizontal axis shows the days of the year.
The shaded area marks when the object is above the horizon; the white line marks daily transit. You can also view the detailed annual visibility table.
Astrometric and Physical Parameters of 90004970 C/2026 M3 (MASTER)
Coordinates and Visibility
| Right Ascension | 18h 05m 41s |
| Declination | 23° 13′ 21″ |
| Magnitude | 19.9 |
| Constellation | Hercules |
| Elevation | -15.3° |
| Azimuth | 316.3° |
Acknowledgments
Orbital and small-body data are provided by NASA Jet Propulsion Laboratory (JPL) Small-Body Database (SBDB) and Center for Near-Earth Object Studies (CNEOS). These resources support accurate positions, orbits and physical characteristics.