C/2021 P4 (ATLAS)
Basic Information of C/2021 P4 (ATLAS)
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | C |
| Perihelion distance (AU) | 1.078376 |
| Eccentricity | 0.996381 |
| Inclination (deg) | 56.397700 |
| Longitude of ascending node (deg) | 347.984200 |
| Argument of perihelion (deg) | 175.818800 |
| Epoch | 2025-11-21T00:00:00.000 |
| Reference | MPEC 2023-A50, MPC orbital elements |
| Period (years) | 5143.662278 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2022-07-30T11:59:42.720 |
| Period (years) | 5143.662278 |
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 | 22:12:54.04 | -45:15:34.9 | 11.569 | 8.87 | 4.1 | HIP 109690 | 3.76 |
| 2025-11-22 | 22:12:55.47 | -45:12:02.6 | 11.590 | 8.92 | 5.4 | HIP 109690 | 6.60 |
| 2025-11-23 | 22:12:57.37 | -45:08:29.4 | 11.611 | 8.98 | 6.7 | HIP 109690 | 9.91 |
| 2025-11-24 | 22:12:59.74 | -45:04:55.4 | 11.633 | 9.04 | 8.0 | HIP 109690 | 13.35 |
| 2025-11-25 | 22:13:02.57 | -45:01:20.6 | 11.653 | 9.10 | 9.2 | HIP 109690 | 16.86 |
| 2025-11-26 | 22:13:05.86 | -44:57:45.0 | 11.674 | 9.16 | 10.4 | HIP 109782 | 19.03 |
| 2025-11-27 | 22:13:09.60 | -44:54:08.8 | 11.695 | 9.22 | 11.6 | HIP 109782 | 15.88 |
| 2025-11-28 | 22:13:13.79 | -44:50:32.0 | 11.716 | 9.29 | 12.8 | HIP 109782 | 12.95 |
| 2025-11-29 | 22:13:18.42 | -44:46:54.5 | 11.737 | 9.36 | 13.9 | HIP 109782 | 10.41 |
| 2025-11-30 | 22:13:23.50 | -44:43:16.6 | 11.757 | 9.42 | 15.1 | HIP 109782 | 8.69 |
| 2025-12-01 | 22:13:29.00 | -44:39:38.2 | 11.778 | 9.49 | 16.2 | HIP 109782 | 8.33 |
| 2025-12-02 | 22:13:34.94 | -44:35:59.4 | 11.798 | 9.56 | 17.2 | HIP 109782 | 9.53 |
| 2025-12-03 | 22:13:41.29 | -44:32:20.1 | 11.819 | 9.63 | 18.3 | HIP 109782 | 11.84 |
| 2025-12-04 | 22:13:48.07 | -44:28:40.6 | 11.839 | 9.71 | 19.3 | HIP 109782 | 14.78 |
| 2025-12-05 | 22:13:55.26 | -44:25:00.8 | 11.859 | 9.78 | 20.3 | HIP 109902 | 17.93 |
| 2025-12-06 | 22:14:02.87 | -44:21:20.7 | 11.880 | 9.85 | 21.3 | HIP 109871 | 15.30 |
| 2025-12-07 | 22:14:10.87 | -44:17:40.4 | 11.900 | 9.85 | 21.3 | HIP 109871 | 12.13 |