C/2021 A9 (PANSTARRS)
Basic Information of C/2021 A9 (PANSTARRS)
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | C |
| Perihelion distance (AU) | 7.765257 |
| Eccentricity | 0.999820 |
| Inclination (deg) | 158.017800 |
| Longitude of ascending node (deg) | 314.851700 |
| Argument of perihelion (deg) | 211.662600 |
| Epoch | 2025-11-21T00:00:00.000 |
| Reference | MPEC 2025-V36, MPC orbital elements |
| Period (years) | 8960350.392906 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2023-12-04T07:26:58.560 |
| Period (years) | 8960350.392906 |
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 | 04:21:09.30 | -02:27:59.6 | 7.996 | 26.86 | 256.9 | HIP 20243 | 16.63 |
| 2025-11-22 | 04:20:27.39 | -02:30:25.3 | 7.998 | 26.86 | 257.2 | HIP 20243 | 7.89 |
| 2025-11-23 | 04:19:45.43 | -02:32:47.8 | 8.000 | 26.85 | 257.5 | HIP 20243 | 8.93 |
| 2025-11-24 | 04:19:03.45 | -02:35:07.0 | 8.003 | 26.83 | 257.8 | HIP 20078 | 15.71 |
| 2025-11-25 | 04:18:21.45 | -02:37:23.0 | 8.006 | 26.80 | 258.1 | HIP 20078 | 13.29 |
| 2025-11-26 | 04:17:39.45 | -02:39:35.7 | 8.009 | 26.76 | 258.4 | HIP 20078 | 18.30 |
| 2025-11-27 | 04:16:57.47 | -02:41:45.0 | 8.013 | 26.71 | 258.7 | HIP 19937 | 19.94 |
| 2025-11-28 | 04:16:15.51 | -02:43:51.0 | 8.017 | 26.66 | 259.0 | HIP 19937 | 21.83 |
| 2025-11-29 | 04:15:33.60 | -02:45:53.6 | 8.022 | 26.60 | 259.2 | HIP 19937 | 27.94 |
| 2025-11-30 | 04:14:51.74 | -02:47:52.7 | 8.027 | 26.53 | 259.5 | HIP 19937 | 36.18 |
| 2025-12-01 | 04:14:09.96 | -02:49:48.4 | 8.032 | 26.45 | 259.8 | HIP 19644 | 30.81 |
| 2025-12-02 | 04:13:28.26 | -02:51:40.6 | 8.038 | 26.36 | 260.1 | HIP 19644 | 25.06 |
| 2025-12-03 | 04:12:46.65 | -02:53:29.2 | 8.043 | 26.27 | 260.4 | HIP 19555 | 21.90 |
| 2025-12-04 | 04:12:05.16 | -02:55:14.4 | 8.050 | 26.16 | 260.7 | HIP 19555 | 11.41 |
| 2025-12-05 | 04:11:23.80 | -02:56:56.0 | 8.056 | 26.05 | 261.0 | HIP 19555 | 1.22 |
| 2025-12-06 | 04:10:42.57 | -02:58:34.0 | 8.063 | 25.94 | 261.3 | HIP 19555 | 9.55 |
| 2025-12-07 | 04:10:01.50 | -03:00:08.5 | 8.071 | 25.94 | 261.3 | HIP 19555 | 19.91 |