Observation details: comet 1P/Halley
Daily motion of 1P/Halley
90000030 1P/Halley will remain visible until May 18, when it moves too close to the Sun and temporarily disappears from the night sky.
1P/Halley visibility on 2026-10-17
1P/Halley Visible from before midnight until sunrise
1P/Halley rise and set timetable
| Time | Elevation | |
Moonrise, 25.9% illuminated  | 11:16 | 8° |
| Astronomical observing session begins | 17:55 | -50° |
| Moonset | 20:29 | -35° |
| 1P/Halley rise | 23:38 | |
| Astronomical observing session ends | 03:51 | 47° |
| Twilight end (−12°) | 04:21 | 50° |
| Civil sunrise | 04:51 | 53° |
| Sunrise | 05:19 | 55° |
| 1P/Halley transit | 05:45 | 55° |
Track 1P/Halley position throughout the night
← 17 October 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 35.225 AU (5,269,584,995 km) from Earth, and is located in the constellation Hydra.Current position in the Solar System: 1P/Halley
| Date | Sat, 17 October 2026 |
| Distance from Earth | 35.225 AU (5,269,584,995km) |
| Elongation | 77° |
| Angular diameter | " |
| Magnitude | 25.6 |
Finder Chart for
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| Object name | |
| Field of view | |
| Limiting magnitude | |
| coordinates | 8.36774, 2.73436 |
| Center coordinates | 8.36774, 2.73436 |
Annual motion of 1P/Halley
| Date | Sun, 18 October 2026 |
| Twilight start | 17:54 |
| Twilight end | 03:49 |
| Twilight duration | 10h 55m |
| Rise | 23:34 |
| Set | 11:48 |
| Elevation at transit | 55° |
| Transit time | 05:41 |
| Equatorial coordinates | RA: 08h 22m 04s", Dec: 02° 43' 32s |
| 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 | 08h 22m 04s |
| Declination | 02° 44′ 04″ |
| Magnitude | 25.6 |
| Constellation | Hydra |
| Elevation | -22° |
| Azimuth | 68° |
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.