Comet 90004894 C/2025 A6 (Lemmon) Observation Details
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C/2025 A6 (Lemmon) Daily Motion
90004894 C/2025 A6 (Lemmon) will be visible until January, 1, 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/2025 A6 (Lemmon) Visibility Timetable on October 14
C/2025 A6 (Lemmon) Rise and Set Timetable
| Time | Elevation | |
| C/2025 A6 (Lemmon) transit | 09:49 | 86° |
| Moon Set | 13:26 | 48° |
| Sunset | 16:31 | 17° |
| Civil sunset | 16:59 | 12° |
| Astrosession begin | 17:59 | 4° |
| C/2025 A6 (Lemmon) set | 18:34 | |
| Moon Rise, 44.2% illuminated | 22:18 | -11° |
| C/2025 A6 (Lemmon) rise | 01:23 | |
| Astrosession end | 03:48 | 23° |
| Civil sunrise | 04:49 | 33° |
| Sunrise | 05:16 | 37° |
Track C/2025 A6 (Lemmon) Position Throughout the Night
← Tue, 14 October 2025 →
| Time | |
| Altitude | |
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Shift the map to change the time and observe C/2025 A6 (Lemmon) changing position in the night sky.
C/2025 A6 (Lemmon) Description
C/2025 A6 (Lemmon), designated as 90004894 C/2025 A6 (Lemmon), is a Jupiter-family comet. At the moment, 90004894 C/2025 A6 (Lemmon) is 0.671 AU (100,390,643 km) from Earth, and it is located in the constellation Canes Venatici.Current position of C/2025 A6 (Lemmon) in Solar System
| Date | Tue, 14 October 2025 |
| Distance from Earth to C/2025 A6 (Lemmon) | 0.67107 AU (100,390,643km) |
| Elongation | 51° |
| Angular diameter | " |
| Magnitude | 7.5 |
Finder Chart for C/2025 A6 (Lemmon)
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| Object name | 90004894 C/2025 A6 (Lemmon) |
| Field of view | |
| Limiting magnitude | |
| 90004894 C/2025 A6 (Lemmon) coordinates | 12.20874, 41.05861 |
| Center coordinates | 12.20874, 41.05861 |
Annual motion of C/2025 A6 (Lemmon)
| Date | Wed, 15 October 2025 |
| Twighlight start | 17:57 |
| Twighlight end | 03:46 |
| Twighlight duration | 10h 49m |
| Rise | 01:24 |
| Set | 18:43 |
| Elevation at transit | 87° |
| Transit time | 10:04 |
| Equatorial coordinates | RA: 12h 30m 29s", Dec: 40° 15' 50s |
| Magnitude | 7 |
| Constellation | Canes Venatici |
The graph illustrates the annual visibility pattern of a C/2025 A6 (Lemmon), 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/2025 A6 (Lemmon) 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/2025 A6 (Lemmon) 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 90004894 C/2025 A6 (Lemmon)
Coordinates & Visibility
| Right Ascension | 12.20874° |
| Declination | 41.05861° |
| Magnitude | 7.5 |
| Constellation | Canes Venatici |
| Elevation | 1.1° |
| Azimuth | 35.8° |
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.