Comet 90000030 1P/Halley Observation Details
1P/Halley Daily Motion
1P/Halley will rise at 23:07, during twilight, and will ascend to 51° by the time twilight ends at 03:58.90000030 1P/Halley will be visible until May, 18, 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.
1P/Halley Visibility Timetable on October 25
1P/Halley Rise and Set Timetable
| Time | Elevation | |
| Moon Rise, 9.3% illuminated | 08:38 | 32° |
| Astrosession begin | 17:45 | -49° |
| Moon Set | 17:55 | -49° |
| 1P/Halley rise | 23:07 | |
| Astrosession end | 03:58 | 51° |
| Civil sunrise | 04:59 | 55° |
| 1P/Halley transit | 05:14 | 55° |
| Sunrise | 05:27 | 55° |
Track 1P/Halley Position Throughout the Night
← Sat, 25 October 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe 1P/Halley changing position in the night sky.
1P/Halley Description
1P/Halley, designated as 90000030 1P/Halley, is a Jupiter-family comet. At the moment, 90000030 1P/Halley is 35.168 AU (5,261,057,917 km) from Earth, and it is located in the constellation Hydra.Current position of 1P/Halley in Solar System
| Date | Sat, 25 October 2025 |
| Distance from Earth to 1P/Halley | 35.168 AU (5,261,057,917km) |
| Elongation | 85° |
| Angular diameter | " |
| Magnitude | 25.6 |
Finder Chart for 1P/Halley
Double-click to unlock the map.
| Object name | 90000030 1P/Halley |
| Field of view | |
| Limiting magnitude | |
| 90000030 1P/Halley coordinates | 8.38674, 2.56092 |
| Center coordinates | 8.38674, 2.56092 |
Annual motion of 1P/Halley
| Date | Sun, 26 October 2025 |
| Twighlight start | 17:44 |
| Twighlight end | 03:56 |
| Twighlight duration | 10h 12m |
| Rise | 23:03 |
| Set | 11:17 |
| Elevation at transit | 55° |
| Transit time | 05:10 |
| Equatorial coordinates | RA: 08h 23m 12s", Dec: 02° 33' 10s |
| Magnitude | 26 |
| Constellation | Hydra |
The graph illustrates the annual visibility pattern of a 1P/Halley, 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 1P/Halley 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 1P/Halley 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 90000030 1P/Halley
Coordinates & Visibility
| Right Ascension | 8.38674° |
| Declination | 2.56092° |
| Magnitude | 25.6 |
| Constellation | Hydra |
| Elevation | -9.1° |
| Azimuth | -79.7° |
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.