Observation details: comet C/2026 J1 (PANSTARRS)
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Daily motion of C/2026 J1 (PANSTARRS)
90004964 C/2026 J1 (PANSTARRS) will remain visible until October 15, when it moves too close to the Sun and temporarily disappears from the night sky.
C/2026 J1 (PANSTARRS) visibility on 2026-08-18
90004964 C/2026 J1 (PANSTARRS) Visible from sunset until early morning
C/2026 J1 (PANSTARRS) rise and set timetable
| Time | Elevation | |
Moonrise, 21% illuminated  | 09:49 | -12° |
| C/2026 J1 (PANSTARRS) transit | 17:50 | 69° |
| Sunset | 17:55 | 69° |
| Civil sunset | 18:24 | 68° |
| Twilight start | 18:57 | 64° |
| Astronomical observing session begins | 19:32 | 59° |
| Moonset | 20:26 | 50° |
| C/2026 J1 (PANSTARRS) set | 00:40 | |
| Astronomical observing session ends | 02:51 | -22° |
| C/2026 J1 (PANSTARRS) rise | 10:58 |
Track C/2026 J1 (PANSTARRS) Position Throughout the Night
← 18 August 2026 →
| Time | |
| Altitude | |
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Shift the map to change the time and observe C/2026 J1 (PANSTARRS) changing position in the night sky.
C/2026 J1 (PANSTARRS) Description
This comet is designated 90004964 C/2026 J1 (PANSTARRS), Jupiter-family comet. C/2026 J1 (PANSTARRS) completes an orbit around the Sun in 128.8 years. It is currently 2.267 AU (339,187,740 km) from Earth, and is located in the constellation Hercules.Current position in the Solar System: C/2026 J1 (PANSTARRS)
| Date | Tue, 18 August 2026 |
| Distance from Earth | 2.27259 AU (339,974,625km) |
| Elongation | 95° |
| Angular diameter | " |
| Magnitude | 19.4 |
Finder Chart for C/2026 J1 (PANSTARRS)
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| Object name | C/2026 J1 (PANSTARRS) |
| Field of view | |
| Limiting magnitude | |
| C/2026 J1 (PANSTARRS) coordinates | 16.47475, 16.4955 |
| Center coordinates | 16.47475, 16.4955 |
Annual motion of C/2026 J1 (PANSTARRS)
| Date | Tue, 18 August 2026 |
| Twilight start | 19:28 |
| Twilight end | 02:44 |
| Twilight duration | 7h 17m |
| Rise | 10:57 |
| Set | 00:35 |
| Elevation at transit | 69° |
| Transit time | 17:46 |
| Equatorial coordinates | RA: 16h 28m 44s", Dec: 15° 54' 55s |
| Magnitude | 19 |
| 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 90004964 C/2026 J1 (PANSTARRS)
Coordinates and Visibility
| Right Ascension | 16.47475° |
| Declination | 16.4955° |
| Magnitude | 19.4 |
| Constellation | Hercules |
| Elevation | -28.7° |
| Azimuth | 34.5° |
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.