Comet 90004678 C/2021 G2 (ATLAS) Observation Details
/90004678 C/2021 G2 (ATLAS).png)
C/2021 G2 (ATLAS) Daily Motion
Tonight, observing C/2021 G2 (ATLAS) may prove challenging owing to its low elevation. It will reach its transit at by 08:11 and set before sunset at 14:10. Rising near twilight's end at 02:07, it will fade away by 03:49, peaking at just 20° above the horizon.90004678 C/2021 G2 (ATLAS) will become visible in January, 9. After being too close to the Sun to observe, it will reappear in the night sky. Starting from January, 9, 90004678 C/2021 G2 (ATLAS) can be seen again, providing a good opportunity for observation.
C/2021 G2 (ATLAS) Visibility Timetable on January 03
C/2021 G2 (ATLAS) Rise and Set Timetable
| Time | Elevation | |
| C/2021 G2 (ATLAS) transit | 08:11 | 53° |
| C/2021 G2 (ATLAS) set | 14:10 | |
| Moon Rise, 99.6% illuminated | 14:13 | -1° |
| Astrosession begin | 16:35 | -28° |
| C/2021 G2 (ATLAS) rise | 02:07 | |
| Astrosession end | 03:49 | 20° |
| Civil sunrise | 04:53 | 32° |
| Sunrise | 05:23 | 37° |
| Moon Set | 05:58 | 42° |
Track C/2021 G2 (ATLAS) Position Throughout the Night
← Sat, 3 January 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe C/2021 G2 (ATLAS) changing position in the night sky.
C/2021 G2 (ATLAS) Description
C/2021 G2 (ATLAS), designated as 90004678 C/2021 G2 (ATLAS), is a comet on a hyperbolic (unbound) trajectory. At the moment, 90004678 C/2021 G2 (ATLAS) is 6.916 AU (1,034,648,793 km) from Earth, and it is located in the constellation Ophiuchus.Current position of C/2021 G2 (ATLAS) in Solar System
| Date | Sat, 3 January 2026 |
| Distance from Earth to C/2021 G2 (ATLAS) | 6.9162 AU (1,034,648,793km) |
| Elongation | 38° |
| Angular diameter | " |
| Magnitude | 16.2 |
Finder Chart for C/2021 G2 (ATLAS)
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| Object name | 90004678 C/2021 G2 (ATLAS) |
| Field of view | |
| Limiting magnitude | |
| 90004678 C/2021 G2 (ATLAS) coordinates | 16.88015, 0.26178 |
| Center coordinates | 16.88015, 0.26178 |
Annual motion of C/2021 G2 (ATLAS)
| Date | Sun, 4 January 2026 |
| Twighlight start | 16:35 |
| Twighlight end | 03:46 |
| Twighlight duration | 11h 12m |
| Rise | 02:07 |
| Set | 14:07 |
| Elevation at transit | 53° |
| Transit time | 08:07 |
| Equatorial coordinates | RA: 16h 53m 32s", Dec: 00° 19' 03s |
| Magnitude | 16 |
| Constellation | Ophiuchus |
The graph illustrates the annual visibility pattern of a C/2021 G2 (ATLAS), 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 G2 (ATLAS) 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 G2 (ATLAS) 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 90004678 C/2021 G2 (ATLAS)
Coordinates & Visibility
| Right Ascension | 16.88015° |
| Declination | 0.26178° |
| Magnitude | 16.2 |
| Constellation | Ophiuchus |
| Elevation | -13.8° |
| Azimuth | 78.8° |
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.