17P/Holmes
Basic Information of 17P/Holmes
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | P |
| Perihelion distance (AU) | 2.090007 |
| Eccentricity | 0.426160 |
| Inclination (deg) | 19.005000 |
| Longitude of ascending node (deg) | 326.601800 |
| Argument of perihelion (deg) | 24.602600 |
| Epoch | 2025-11-21T00:00:00.000 |
| Reference | MPEC 2025-W75, MPC orbital elements |
| Period (years) | 6.950809 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2028-01-31T18:56:35.520 |
| Period (years) | 6.950809 |
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 | 13:22:30.83 | -23:06:00.9 | 5.480 | 33.74 | 120.7 | HIP 65266 | 8.85 |
| 2025-11-22 | 13:23:21.34 | -23:12:53.9 | 5.469 | 33.64 | 120.8 | HIP 65269 | 19.15 |
| 2025-11-23 | 13:24:11.66 | -23:19:47.3 | 5.459 | 33.53 | 121.0 | HIP 65269 | 31.88 |
| 2025-11-24 | 13:25:01.80 | -23:26:41.0 | 5.448 | 33.42 | 121.1 | HIP 65568 | 25.14 |
| 2025-11-25 | 13:25:51.74 | -23:33:35.1 | 5.437 | 33.31 | 121.3 | HIP 65568 | 22.16 |
| 2025-11-26 | 13:26:41.49 | -23:40:29.4 | 5.425 | 33.19 | 121.4 | HIP 65568 | 26.62 |
| 2025-11-27 | 13:27:31.02 | -23:47:24.1 | 5.414 | 33.07 | 121.6 | HIP 65602 | 30.68 |
| 2025-11-28 | 13:28:20.34 | -23:54:19.0 | 5.402 | 32.95 | 121.7 | HIP 65602 | 29.06 |
| 2025-11-29 | 13:29:09.43 | -24:01:14.1 | 5.391 | 32.82 | 121.9 | HIP 65896 | 28.83 |
| 2025-11-30 | 13:29:58.30 | -24:08:09.3 | 5.379 | 32.69 | 122.0 | HIP 65885 | 18.62 |
| 2025-12-01 | 13:30:46.93 | -24:15:04.8 | 5.367 | 32.55 | 122.2 | HIP 65885 | 12.53 |
| 2025-12-02 | 13:31:35.32 | -24:22:00.4 | 5.354 | 32.41 | 122.3 | HIP 65885 | 17.50 |
| 2025-12-03 | 13:32:23.46 | -24:28:56.2 | 5.342 | 32.27 | 122.5 | HIP 65885 | 28.11 |
| 2025-12-04 | 13:33:11.34 | -24:35:52.1 | 5.329 | 32.13 | 122.7 | HIP 65885 | 40.06 |
| 2025-12-05 | 13:33:58.97 | -24:42:48.1 | 5.317 | 31.98 | 122.9 | HIP 66281 | 38.49 |
| 2025-12-06 | 13:34:46.32 | -24:49:44.2 | 5.304 | 31.83 | 123.0 | HIP 66281 | 28.83 |
| 2025-12-07 | 13:35:33.40 | -24:56:40.3 | 5.291 | 31.83 | 123.0 | HIP 66281 | 22.51 |