C/2021 A1 (Leonard)
Basic Information of C/2021 A1 (Leonard)
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | C |
| Perihelion distance (AU) | 0.614740 |
| Eccentricity | 1.000270 |
| Inclination (deg) | 132.742900 |
| Longitude of ascending node (deg) | 255.905700 |
| Argument of perihelion (deg) | 225.123200 |
| Epoch | 2025-11-21T00:00:00.000 |
| Reference | MPC181179, MPC orbital elements |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2022-01-04T00:22:45.120 |
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 | 16:08:59.07 | -07:01:30.3 | 14.263 | 9.91 | 97.5 | HIP 79174 | 19.64 |
| 2025-11-22 | 16:09:14.91 | -07:02:01.4 | 14.270 | 9.91 | 97.2 | HIP 79174 | 18.85 |
| 2025-11-23 | 16:09:30.77 | -07:02:31.4 | 14.276 | 9.91 | 97.0 | HIP 79174 | 18.86 |
| 2025-11-24 | 16:09:46.62 | -07:03:00.3 | 14.283 | 9.90 | 96.7 | HIP 79174 | 19.67 |
| 2025-11-25 | 16:10:02.48 | -07:03:28.1 | 14.289 | 9.90 | 96.5 | HIP 79174 | 21.19 |
| 2025-11-26 | 16:10:18.33 | -07:03:54.9 | 14.295 | 9.89 | 96.2 | HIP 79174 | 23.28 |
| 2025-11-27 | 16:10:34.18 | -07:04:20.5 | 14.301 | 9.87 | 95.9 | HIP 79313 | 24.38 |
| 2025-11-28 | 16:10:50.01 | -07:04:45.0 | 14.306 | 9.86 | 95.7 | HIP 79313 | 22.74 |
| 2025-11-29 | 16:11:05.82 | -07:05:08.4 | 14.311 | 9.84 | 95.4 | HIP 79313 | 21.73 |
| 2025-11-30 | 16:11:21.61 | -07:05:30.6 | 14.316 | 9.82 | 95.1 | HIP 79313 | 21.42 |
| 2025-12-01 | 16:11:37.38 | -07:05:51.7 | 14.321 | 9.79 | 94.9 | HIP 79313 | 21.84 |
| 2025-12-02 | 16:11:53.11 | -07:06:11.7 | 14.325 | 9.77 | 94.6 | HIP 79447 | 20.81 |
| 2025-12-03 | 16:12:08.82 | -07:06:30.4 | 14.329 | 9.74 | 94.3 | HIP 79447 | 18.77 |
| 2025-12-04 | 16:12:24.48 | -07:06:48.0 | 14.333 | 9.71 | 94.0 | HIP 79447 | 17.37 |
| 2025-12-05 | 16:12:40.10 | -07:07:04.5 | 14.336 | 9.68 | 93.8 | HIP 79447 | 16.76 |
| 2025-12-06 | 16:12:55.68 | -07:07:19.7 | 14.339 | 9.65 | 93.5 | HIP 79447 | 17.02 |
| 2025-12-07 | 16:13:11.21 | -07:07:33.8 | 14.342 | 9.65 | 93.5 | HIP 79545 | 16.81 |