C/2021 A2 (NEOWISE)
Basic Information of C/2021 A2 (NEOWISE)
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | C |
| Perihelion distance (AU) | 1.413826 |
| Eccentricity | 0.993793 |
| Inclination (deg) | 107.031300 |
| Longitude of ascending node (deg) | 125.103000 |
| Argument of perihelion (deg) | 338.773800 |
| Epoch | 2024-10-17T00:00:00.000 |
| Reference | , MPC orbital elements |
| Period (years) | 3437.726547 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2021-01-22T01:38:29.760 |
| Period (years) | 3437.726547 |
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 | 20:25:15.10 | +36:04:26.1 | 14.686 | 9.17 | 150.7 | HIP 100777 | 18.29 |
| 2025-11-22 | 20:25:23.98 | +36:01:14.2 | 14.702 | 9.15 | 149.6 | HIP 100777 | 14.62 |
| 2025-11-23 | 20:25:33.13 | +35:58:04.8 | 14.718 | 9.13 | 148.5 | HIP 100777 | 10.96 |
| 2025-11-24 | 20:25:42.55 | +35:54:57.8 | 14.735 | 9.12 | 147.4 | HIP 100777 | 7.31 |
| 2025-11-25 | 20:25:52.25 | +35:51:53.3 | 14.751 | 9.11 | 146.3 | HIP 100777 | 3.67 |
| 2025-11-26 | 20:26:02.20 | +35:48:51.4 | 14.768 | 9.09 | 145.3 | HIP 100777 | 0.31 |
| 2025-11-27 | 20:26:12.42 | +35:45:52.0 | 14.784 | 9.08 | 144.2 | HIP 100791 | 1.44 |
| 2025-11-28 | 20:26:22.89 | +35:42:55.3 | 14.800 | 9.07 | 143.1 | HIP 100820 | 2.78 |
| 2025-11-29 | 20:26:33.62 | +35:40:01.2 | 14.816 | 9.06 | 142.0 | HIP 100820 | 1.00 |
| 2025-11-30 | 20:26:44.59 | +35:37:09.7 | 14.833 | 9.05 | 141.0 | HIP 100820 | 4.52 |
| 2025-12-01 | 20:26:55.80 | +35:34:21.0 | 14.849 | 9.04 | 139.9 | HIP 100820 | 8.13 |
| 2025-12-02 | 20:27:07.25 | +35:31:35.0 | 14.865 | 9.03 | 138.8 | HIP 100820 | 11.74 |
| 2025-12-03 | 20:27:18.93 | +35:28:51.7 | 14.881 | 9.03 | 137.8 | HIP 100820 | 15.34 |
| 2025-12-04 | 20:27:30.85 | +35:26:11.2 | 14.897 | 9.02 | 136.7 | HIP 100820 | 18.94 |
| 2025-12-05 | 20:27:42.99 | +35:23:33.5 | 14.913 | 9.02 | 135.7 | HIP 100820 | 22.54 |
| 2025-12-06 | 20:27:55.35 | +35:20:58.6 | 14.929 | 9.02 | 134.6 | HIP 100827 | 24.71 |
| 2025-12-07 | 20:28:07.93 | +35:18:26.6 | 14.945 | 9.02 | 134.6 | HIP 101073 | 22.58 |