100P/Hartley
Basic Information of 100P/Hartley
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | P |
| Perihelion distance (AU) | 2.019120 |
| Eccentricity | 0.411377 |
| Inclination (deg) | 25.568000 |
| Longitude of ascending node (deg) | 37.685800 |
| Argument of perihelion (deg) | 181.902700 |
| Epoch | 2025-11-21T00:00:00.000 |
| Reference | MPEC 2025-W75, MPC orbital elements |
| Period (years) | 6.353124 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2028-12-16T09:57:36.000 |
| Period (years) | 6.353124 |
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 | 02:18:12.46 | +16:27:37.6 | 3.895 | 24.27 | 263.0 | HIP 10875 | 28.47 |
| 2025-11-22 | 02:17:32.27 | +16:26:26.4 | 3.901 | 23.95 | 263.0 | HIP 10665 | 27.29 |
| 2025-11-23 | 02:16:52.61 | +16:25:16.4 | 3.907 | 23.61 | 263.0 | HIP 10521 | 22.99 |
| 2025-11-24 | 02:16:13.53 | +16:24:07.5 | 3.913 | 23.25 | 263.1 | HIP 10521 | 15.45 |
| 2025-11-25 | 02:15:35.03 | +16:23:00.0 | 3.920 | 22.89 | 263.1 | HIP 10521 | 11.30 |
| 2025-11-26 | 02:14:57.14 | +16:21:54.0 | 3.927 | 22.50 | 263.2 | HIP 10521 | 13.70 |
| 2025-11-27 | 02:14:19.89 | +16:20:49.6 | 3.935 | 22.11 | 263.2 | HIP 10521 | 20.26 |
| 2025-11-28 | 02:13:43.28 | +16:19:46.8 | 3.943 | 21.70 | 263.3 | HIP 10330 | 17.28 |
| 2025-11-29 | 02:13:07.35 | +16:18:45.9 | 3.950 | 21.28 | 263.4 | HIP 10330 | 13.64 |
| 2025-11-30 | 02:12:32.10 | +16:17:46.8 | 3.959 | 20.86 | 263.5 | HIP 10330 | 14.92 |
| 2025-12-01 | 02:11:57.56 | +16:16:49.8 | 3.967 | 20.42 | 263.6 | HIP 10330 | 19.99 |
| 2025-12-02 | 02:11:23.75 | +16:15:54.9 | 3.976 | 19.97 | 263.7 | HIP 10207 | 17.94 |
| 2025-12-03 | 02:10:50.67 | +16:15:02.2 | 3.985 | 19.51 | 263.8 | HIP 10207 | 18.33 |
| 2025-12-04 | 02:10:18.34 | +16:14:11.7 | 3.994 | 19.05 | 264.0 | HIP 10207 | 21.76 |
| 2025-12-05 | 02:09:46.78 | +16:13:23.7 | 4.004 | 18.57 | 264.1 | HIP 10207 | 26.95 |
| 2025-12-06 | 02:09:15.99 | +16:12:38.1 | 4.014 | 18.09 | 264.3 | HIP 9948 | 29.89 |
| 2025-12-07 | 02:08:46.00 | +16:11:55.0 | 4.024 | 18.09 | 264.3 | HIP 9948 | 25.71 |