491P/Spacewatch-PANSTARRS
Basic Information of 491P/Spacewatch-PANSTARRS
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | P |
| Perihelion distance (AU) | 3.716000 |
| Eccentricity | 0.258690 |
| Inclination (deg) | 9.366900 |
| Longitude of ascending node (deg) | 311.683400 |
| Argument of perihelion (deg) | 298.845300 |
| Epoch | 2025-11-21T00:00:00.000 |
| Reference | MPEC 2025-W75, MPC orbital elements |
| Period (years) | 11.223124 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2024-09-05T18:53:08.160 |
| Period (years) | 11.223124 |
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 | 20:12:44.29 | -19:42:06.7 | 4.543 | 32.79 | 72.8 | HIP 99519 | 34.33 |
| 2025-11-22 | 20:13:37.50 | -19:38:13.9 | 4.558 | 33.06 | 72.8 | HIP 99810 | 29.41 |
| 2025-11-23 | 20:14:31.14 | -19:34:19.0 | 4.573 | 33.34 | 72.8 | HIP 99782 | 22.06 |
| 2025-11-24 | 20:15:25.20 | -19:30:22.0 | 4.588 | 33.60 | 72.8 | HIP 99782 | 20.54 |
| 2025-11-25 | 20:16:19.67 | -19:26:23.0 | 4.603 | 33.87 | 72.8 | HIP 99782 | 26.78 |
| 2025-11-26 | 20:17:14.53 | -19:22:21.8 | 4.618 | 34.12 | 72.8 | HIP 100107 | 18.13 |
| 2025-11-27 | 20:18:09.78 | -19:18:18.6 | 4.632 | 34.37 | 72.7 | HIP 100107 | 4.51 |
| 2025-11-28 | 20:19:05.41 | -19:14:13.3 | 4.647 | 34.62 | 72.7 | HIP 100195 | 8.31 |
| 2025-11-29 | 20:20:01.40 | -19:10:05.9 | 4.662 | 34.86 | 72.7 | HIP 100195 | 9.41 |
| 2025-11-30 | 20:20:57.75 | -19:05:56.4 | 4.676 | 35.10 | 72.7 | HIP 100393 | 8.37 |
| 2025-12-01 | 20:21:54.46 | -19:01:44.9 | 4.690 | 35.33 | 72.6 | HIP 100393 | 5.85 |
| 2025-12-02 | 20:22:51.50 | -18:57:31.3 | 4.704 | 35.55 | 72.6 | HIP 100393 | 19.90 |
| 2025-12-03 | 20:23:48.87 | -18:53:15.6 | 4.719 | 35.77 | 72.6 | HIP 100393 | 34.11 |
| 2025-12-04 | 20:24:46.56 | -18:48:57.9 | 4.732 | 35.99 | 72.5 | HIP 100770 | 25.60 |
| 2025-12-05 | 20:25:44.57 | -18:44:38.1 | 4.746 | 36.20 | 72.5 | HIP 100770 | 15.83 |
| 2025-12-06 | 20:26:42.88 | -18:40:16.2 | 4.760 | 36.41 | 72.5 | HIP 100847 | 10.63 |
| 2025-12-07 | 20:27:41.50 | -18:35:52.2 | 4.774 | 36.41 | 72.5 | HIP 100847 | 19.34 |