Observation details: comet 1P/Halley
Daily motion of 1P/Halley
90000030 1P/Halley will become visible again around September 20 after moving far enough from the Sun.
1P/Halley visibility on 2026-08-21
90000030 1P/Halley Visible from morning twilight until sunrise
1P/Halley rise and set timetable
| Time | Elevation | |
| 1P/Halley transit | 09:30 | 56° |
Moonrise, 49% illuminated  | 12:56 | 32° |
| 1P/Halley set | 15:39 | |
| Astronomical observing session begins | 19:27 | -41° |
| Moonset | 22:12 | -48° |
| Astronomical observing session ends | 02:54 | -4° |
| 1P/Halley rise | 03:17 | |
| Twilight end | 03:29 | 2° |
| Civil sunrise | 04:01 | 9° |
| Sunrise | 04:30 | 15° |
Track 1P/Halley Position Throughout the Night
← 21 August 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe 1P/Halley changing position in the night sky.
1P/Halley Description
This comet is designated 90000030 1P/Halley, Jupiter-family comet. 1P/Halley completes an orbit around the Sun in 76 years. It is currently 35.935 AU (5,375,799,484 km) from Earth, and is located in the constellation Hydra.Current position in the Solar System: 1P/Halley
| Date | Fri, 21 August 2026 |
| Distance from Earth | 35.929 AU (5,374,901,896km) |
| Elongation | 27° |
| Angular diameter | " |
| Magnitude | 25.6 |
Finder Chart for 1P/Halley
Double-click to unlock the map.
| Object name | 1P/Halley |
| Field of view | |
| Limiting magnitude | |
| 1P/Halley coordinates | 8.31081, 3.26864 |
| Center coordinates | 8.31081, 3.26864 |
Annual motion of 1P/Halley
| Date | Fri, 21 August 2026 |
| Twilight start | 19:23 |
| Twilight end | 02:48 |
| Twilight duration | 7h 25m |
| Rise | 03:17 |
| Set | 15:35 |
| Elevation at transit | 56° |
| Transit time | 09:26 |
| Equatorial coordinates | RA: 08h 18m 44s", Dec: 03° 15' 37s |
| Magnitude | 26 |
| Constellation | Hydra |
The graph summarizes the object’s annual visibility, daily observing windows and transit times.
The vertical axis shows time of day and the horizontal axis shows the days of the year.
The shaded area marks when the object is above the horizon; the white line marks daily transit. You can also view the detailed annual visibility table.
The vertical axis shows time of day and the horizontal axis shows the days of the year.
The shaded area marks when the object is above the horizon; the white line marks daily transit. You can also view the detailed annual visibility table.
Astrometric and Physical Parameters of 90000030 1P/Halley
Coordinates and Visibility
| Right Ascension | 8.31081° |
| Declination | 3.26864° |
| Magnitude | 25.6 |
| Constellation | Hydra |
| Elevation | 8.1° |
| Azimuth | 268° |
Acknowledgments
Orbital and small-body data are provided by NASA Jet Propulsion Laboratory (JPL) Small-Body Database (SBDB) and Center for Near-Earth Object Studies (CNEOS). These resources support accurate positions, orbits and physical characteristics.