Comet C/2026 B2 (Sun-Gao) Observation Details
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C/2026 B2 (Sun-Gao) Daily Motion
90004949 C/2026 B2 (Sun-Gao) will become visible in June, 6. After being too close to the Sun to observe, it will reappear in the night sky. Starting from June, 6, 90004949 C/2026 B2 (Sun-Gao) can be seen again, providing a good opportunity for observation.
C/2026 B2 (Sun-Gao) Visibility on May 18
90004949 C/2026 B2 (Sun-Gao) is visible in the early morning sky until sunrise
C/2026 B2 (Sun-Gao) Rise and Set Timetable
| Time | Elevation | |
Moon Rise, 0.2% illuminated  | 04:14 | 39° |
| C/2026 B2 (Sun-Gao) transit | 08:46 | 86° |
| C/2026 B2 (Sun-Gao) set | 17:37 | |
| Astrosession begin | 19:56 | -10° |
| Moon Set | 19:59 | -10° |
| C/2026 B2 (Sun-Gao) rise | 23:54 | |
| Astrosession end | 02:11 | 19° |
| Twighlight end | 02:50 | 25° |
| Civil sunrise | 03:27 | 31° |
| Sunrise | 03:57 | 36° |
Track C/2026 B2 (Sun-Gao) Position Throughout the Night
← Mon, 18 May 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe C/2026 B2 (Sun-Gao) changing position in the night sky.
C/2026 B2 (Sun-Gao) Description
C/2026 B2 (Sun-Gao), designated as 90004949 C/2026 B2 (Sun-Gao), is a Jupiter-family comet. At the moment, 90004949 C/2026 B2 (Sun-Gao) is 2.946 AU (440,760,206 km) from Earth, and it is located in the constellation Andromeda.Current position of C/2026 B2 (Sun-Gao) in Solar System
| Date | Mon, 18 May 2026 |
| Distance from Earth to C/2026 B2 (Sun-Gao) | 2.9548 AU (442,031,788km) |
| Elongation | 37° |
| Angular diameter | " |
| Magnitude | 18.2 |
Finder Chart for C/2026 B2 (Sun-Gao)
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| Object name | 90004949 C/2026 B2 (Sun-Gao) |
| Field of view | |
| Limiting magnitude | |
| 90004949 C/2026 B2 (Sun-Gao) coordinates | 1.31026, 41.645 |
| Center coordinates | 1.31026, 41.645 |
Annual motion of C/2026 B2 (Sun-Gao)
| Date | Mon, 18 May 2026 |
| Twighlight start | 19:51 |
| Twighlight end | 02:06 |
| Twighlight duration | 6h 14m |
| Rise | 23:52 |
| Set | 17:33 |
| Elevation at transit | 86° |
| Transit time | 08:42 |
| Equatorial coordinates | RA: 01h 20m 47s", Dec: 41° 44' 48s |
| Magnitude | 18 |
| Constellation | Andromeda |
The graph illustrates the annual visibility pattern of a C/2026 B2 (Sun-Gao), 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 B2 (Sun-Gao) 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 B2 (Sun-Gao) 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 90004949 C/2026 B2 (Sun-Gao)
Coordinates & Visibility
| Right Ascension | 1.31026° |
| Declination | 41.645° |
| Magnitude | 18.2 |
| Constellation | Andromeda |
| Elevation | 49.5° |
| Azimuth | 66.8° |
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.