1P/Halley
Basic Information of 1P/Halley
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | P |
| Perihelion distance (AU) | 0.572508 |
| Eccentricity | 0.967941 |
| Inclination (deg) | 162.157800 |
| Longitude of ascending node (deg) | 59.521300 |
| Argument of perihelion (deg) | 112.419600 |
| Epoch | 2025-11-21T00:00:00.000 |
| Reference | MPEC 2025-W75, MPC orbital elements |
| Period (years) | 75.465314 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2061-08-14T01:25:23.520 |
| Period (years) | 75.465314 |
Magnitude
Magnitude Chart Placeholder
Ephemeris
| Date (UTC) | RA (J2000) | Dec (J2000) | Δ (AU) | Motion (arcsec/hr) | Dir (deg) | Nearest HIP | Dist (arcmin) |
|---|---|---|---|---|---|---|---|
| 2025-11-21 | 08:21:10.80 | +02:28:03.7 | 34.723 | 2.11 | 251.9 | HIP 40912 | 3.14 |
| 2025-11-22 | 08:21:07.59 | +02:27:48.0 | 34.707 | 2.17 | 253.1 | HIP 40912 | 2.41 |
| 2025-11-23 | 08:21:04.26 | +02:27:32.8 | 34.692 | 2.23 | 254.2 | HIP 40912 | 1.77 |
| 2025-11-24 | 08:21:00.83 | +02:27:18.2 | 34.677 | 2.28 | 255.2 | HIP 40912 | 1.37 |
| 2025-11-25 | 08:20:57.30 | +02:27:04.3 | 34.661 | 2.34 | 256.2 | HIP 40912 | 1.49 |
| 2025-11-26 | 08:20:53.66 | +02:26:50.9 | 34.646 | 2.40 | 257.2 | HIP 40912 | 2.06 |
| 2025-11-27 | 08:20:49.91 | +02:26:38.1 | 34.631 | 2.46 | 258.1 | HIP 40912 | 2.84 |
| 2025-11-28 | 08:20:46.06 | +02:26:25.9 | 34.617 | 2.51 | 258.9 | HIP 40912 | 3.73 |
| 2025-11-29 | 08:20:42.11 | +02:26:14.3 | 34.602 | 2.57 | 259.8 | HIP 40912 | 4.67 |
| 2025-11-30 | 08:20:38.06 | +02:26:03.4 | 34.587 | 2.63 | 260.6 | HIP 40912 | 5.65 |
| 2025-12-01 | 08:20:33.91 | +02:25:53.0 | 34.573 | 2.68 | 261.3 | HIP 40912 | 6.66 |
| 2025-12-02 | 08:20:29.66 | +02:25:43.3 | 34.559 | 2.74 | 262.1 | HIP 40912 | 7.71 |
| 2025-12-03 | 08:20:25.32 | +02:25:34.2 | 34.545 | 2.80 | 262.8 | HIP 40912 | 8.78 |
| 2025-12-04 | 08:20:20.87 | +02:25:25.8 | 34.531 | 2.85 | 263.4 | HIP 40912 | 9.87 |
| 2025-12-05 | 08:20:16.34 | +02:25:18.0 | 34.517 | 2.91 | 264.1 | HIP 40912 | 10.99 |
| 2025-12-06 | 08:20:11.70 | +02:25:10.8 | 34.504 | 2.96 | 264.7 | HIP 40912 | 12.13 |
| 2025-12-07 | 08:20:06.98 | +02:25:04.2 | 34.490 | 2.96 | 264.7 | HIP 40912 | 13.30 |