Comet C/2026 A2 (Bok) Observation Details
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C/2026 A2 (Bok) Daily Motion
90004951 C/2026 A2 (Bok) will be visible until February, 12, 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/2026 A2 (Bok) Visibility on July 18
90004951 C/2026 A2 (Bok) is Not visible tonight
C/2026 A2 (Bok) Rise and Set Timetable
| Time | Elevation | |
| C/2026 A2 (Bok) is always above the horizon | ||
Moon Rise, 9.3% illuminated  | 07:47 | 26° |
| Sunset | 18:25 | 47° |
| Civil sunset | 18:57 | 48° |
| Twighlight start | 19:34 | 48° |
| C/2026 A2 (Bok) transit | 19:53 | 48° |
| Astrosession begin | 20:14 | 48° |
| C/2026 A2 (Bok) is always above the horizon | ||
| Moon Set | 20:45 | 48° |
| Astrosession end | 02:13 | 36° |
| Twighlight end | 02:54 | 34° |
| Civil sunrise | 03:31 | 32° |
| Sunrise | 04:02 | 31° |
Track C/2026 A2 (Bok) Position Throughout the Night
← Sat, 18 July 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe C/2026 A2 (Bok) changing position in the night sky.
C/2026 A2 (Bok) Description
C/2026 A2 (Bok), designated as 90004951 C/2026 A2 (Bok), is a Jupiter-family comet. At the moment, 90004951 C/2026 A2 (Bok) is 2.758 AU (412,540,064 km) from Earth, and it is located in the constellation Ursa Minor.Current position of C/2026 A2 (Bok) in Solar System
| Date | Sat, 18 July 2026 |
| Distance from Earth to C/2026 A2 (Bok) | 2.75315 AU (411,865,378km) |
| Elongation | 76° |
| Angular diameter | " |
| Magnitude | 16.4 |
Finder Chart for C/2026 A2 (Bok)
Double-click to unlock the map.
| Object name | 90004951 C/2026 A2 (Bok) |
| Field of view | |
| Limiting magnitude | |
| 90004951 C/2026 A2 (Bok) coordinates | 16.52183, 79.08786 |
| Center coordinates | 16.52183, 79.08786 |
Annual motion of C/2026 A2 (Bok)
| Date | Sat, 18 July 2026 |
| Twighlight start | 20:10 |
| Twighlight end | 02:07 |
| Twighlight duration | 6h 57m |
| Rise | 90004951 C/2026 A2 (Bok) is always up |
| Set | 90004951 C/2026 A2 (Bok) is always up |
| Elevation at transit | 48° |
| Transit time | 19:52 |
| Equatorial coordinates | RA: 16h 28m 56s", Dec: 79° 04' 02s |
| Magnitude | 16 |
| Constellation | Ursa Minor |
The graph illustrates the annual visibility pattern of a C/2026 A2 (Bok), 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/2026 A2 (Bok) 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. You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
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/2026 A2 (Bok) 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. You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
Astrometric & Physical Parameters of 90004951 C/2026 A2 (Bok)
Coordinates & Visibility
| Right Ascension | 16.52183° |
| Declination | 79.08786° |
| Magnitude | 16.4 |
| Constellation | Ursa Minor |
| Elevation | 27.8° |
| Azimuth | 353.6° |
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.