123P/West-Hartley
Basic Information of 123P/West-Hartley
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | P |
| Perihelion distance (AU) | 2.158028 |
| Eccentricity | 0.444628 |
| Inclination (deg) | 15.286700 |
| Longitude of ascending node (deg) | 45.880100 |
| Argument of perihelion (deg) | 103.929600 |
| Epoch | 2025-11-21T00:00:00.000 |
| Reference | MPEC 2025-W75, MPC orbital elements |
| Period (years) | 7.659663 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2026-09-22T02:19:06.240 |
| Period (years) | 7.659663 |
Finding Chart
Sky Tracks
Steps: 3 days · geocentric
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 | 03:58:09.50 | +26:48:54.2 | 2.078 | 33.87 | 277.9 | HIP 18439 | 22.37 |
| 2025-11-22 | 03:57:09.35 | +26:50:45.4 | 2.073 | 34.04 | 277.6 | HIP 18439 | 10.53 |
| 2025-11-23 | 03:56:08.82 | +26:52:32.2 | 2.069 | 34.18 | 277.2 | HIP 18439 | 9.39 |
| 2025-11-24 | 03:55:07.98 | +26:54:14.4 | 2.064 | 34.28 | 276.9 | HIP 18330 | 9.64 |
| 2025-11-25 | 03:54:06.90 | +26:55:52.2 | 2.060 | 34.35 | 276.6 | HIP 18230 | 4.26 |
| 2025-11-26 | 03:53:05.64 | +26:57:25.5 | 2.057 | 34.39 | 276.2 | HIP 18230 | 10.61 |
| 2025-11-27 | 03:52:04.26 | +26:58:54.4 | 2.053 | 34.38 | 275.9 | HIP 18163 | 21.93 |
| 2025-11-28 | 03:51:02.85 | +27:00:18.9 | 2.050 | 34.35 | 275.6 | HIP 17924 | 29.72 |
| 2025-11-29 | 03:50:01.45 | +27:01:39.2 | 2.047 | 34.27 | 275.4 | HIP 17924 | 24.71 |
| 2025-11-30 | 03:49:00.15 | +27:02:55.3 | 2.045 | 34.17 | 275.1 | HIP 17924 | 26.77 |
| 2025-12-01 | 03:47:59.00 | +27:04:07.2 | 2.042 | 34.02 | 274.8 | HIP 17774 | 29.11 |
| 2025-12-02 | 03:46:58.07 | +27:05:15.1 | 2.041 | 33.85 | 274.6 | HIP 17592 | 19.27 |
| 2025-12-03 | 03:45:57.43 | +27:06:19.1 | 2.039 | 33.64 | 274.3 | HIP 17592 | 14.60 |
| 2025-12-04 | 03:44:57.14 | +27:07:19.3 | 2.038 | 33.39 | 274.1 | HIP 17592 | 20.50 |
| 2025-12-05 | 03:43:57.26 | +27:08:15.8 | 2.036 | 33.11 | 273.9 | HIP 17592 | 31.38 |
| 2025-12-06 | 03:42:57.85 | +27:09:08.6 | 2.036 | 32.81 | 273.7 | HIP 17324 | 35.37 |
| 2025-12-07 | 03:41:58.97 | +27:09:58.1 | 2.035 | 32.81 | 273.7 | HIP 17134 | 27.22 |