Comet 90004713 C/2021 S3 (PANSTARRS) Observation Details
/90004713 C/2021 S3 (PANSTARRS).png)
C/2021 S3 (PANSTARRS) Daily Motion
90004713 C/2021 S3 (PANSTARRS) will be visible until February, 16, 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.
C/2021 S3 (PANSTARRS) Visibility Timetable on November 04
C/2021 S3 (PANSTARRS) Rise and Set Timetable
| Time | Elevation | |
| Moon Rise, 96.3% illuminated | 13:50 | 41° |
| Sunset | 15:05 | 55° |
| Civil sunset | 15:34 | 61° |
| Astrosession begin | 16:35 | 73° |
| C/2021 S3 (PANSTARRS) transit | 18:03 | 89° |
| C/2021 S3 (PANSTARRS) set | 02:28 | |
| Astrosession end | 03:07 | -5° |
| Moon Set | 03:35 | -8° |
| C/2021 S3 (PANSTARRS) rise | 09:35 |
Track C/2021 S3 (PANSTARRS) Position Throughout the Night
← Tue, 4 November 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe C/2021 S3 (PANSTARRS) changing position in the night sky.
C/2021 S3 (PANSTARRS) Description
C/2021 S3 (PANSTARRS), designated as 90004713 C/2021 S3 (PANSTARRS), is a comet on a hyperbolic (unbound) trajectory. At the moment, 90004713 C/2021 S3 (PANSTARRS) is 6.361 AU (951,547,176 km) from Earth, and it is located in the constellation Lacerta.Current position of C/2021 S3 (PANSTARRS) in Solar System
| Date | Tue, 4 November 2025 |
| Distance from Earth to C/2021 S3 (PANSTARRS) | 6.3688 AU (952,758,919km) |
| Elongation | 125° |
| Angular diameter | " |
| Magnitude | 18.5 |
Finder Chart for C/2021 S3 (PANSTARRS)
Double-click to unlock the map.
| Object name | 90004713 C/2021 S3 (PANSTARRS) |
| Field of view | |
| Limiting magnitude | |
| 90004713 C/2021 S3 (PANSTARRS) coordinates | 22.84141, 38.03358 |
| Center coordinates | 22.84141, 38.03358 |
Annual motion of C/2021 S3 (PANSTARRS)
| Date | Tue, 4 November 2025 |
| Twighlight start | 16:31 |
| Twighlight end | 03:00 |
| Twighlight duration | 10h 29m |
| Rise | 09:39 |
| Set | 02:28 |
| Elevation at transit | 89° |
| Transit time | 18:03 |
| Equatorial coordinates | RA: 22h 50m 21s", Dec: 37° 54' 20s |
| Magnitude | 19 |
| Constellation | Lacerta |
The graph illustrates the annual visibility pattern of a C/2021 S3 (PANSTARRS), providing a comprehensive overview of its daily appearances and transit times throughout the year.
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 C/2021 S3 (PANSTARRS) 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.
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 C/2021 S3 (PANSTARRS) 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 90004713 C/2021 S3 (PANSTARRS)
Coordinates & Visibility
| Right Ascension | 22.84141° |
| Declination | 38.03358° |
| Magnitude | 18.5 |
| Constellation | Lacerta |
| Elevation | -10.9° |
| Azimuth | 20.7° |
Acknowledgments
We acknowledge NASA's Jet Propulsion Laboratory (JPL) for providing essential data on asteroids and comets through their Small-Body Database (SBDB) and Center for Near-Earth Object Studies (CNEOS). Their continuous efforts in tracking and cataloging these celestial bodies make it possible to offer accurate and up-to-date information on their positions, orbits, and physical characteristics.