C/2021 D1 (SWAN)
Basic Information of C/2021 D1 (SWAN)
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | C |
| Perihelion distance (AU) | 0.902361 |
| Eccentricity | 0.990973 |
| Inclination (deg) | 31.449100 |
| Longitude of ascending node (deg) | 311.311200 |
| Argument of perihelion (deg) | 72.211100 |
| Epoch | 2023-02-25T00:00:00.000 |
| Reference | , MPC orbital elements |
| Period (years) | 999.436743 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2021-02-27T17:15:30.240 |
| Period (years) | 999.436743 |
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 | 11:07:54.75 | -17:11:31.6 | 15.124 | 6.03 | 150.8 | HIP 54368 | 37.22 |
| 2025-11-22 | 11:07:59.69 | -17:13:37.8 | 15.115 | 5.93 | 151.9 | HIP 54368 | 35.41 |
| 2025-11-23 | 11:08:04.37 | -17:15:43.3 | 15.106 | 5.83 | 153.0 | HIP 54368 | 33.68 |
| 2025-11-24 | 11:08:08.80 | -17:17:47.9 | 15.097 | 5.72 | 154.2 | HIP 54368 | 32.02 |
| 2025-11-25 | 11:08:12.99 | -17:19:51.5 | 15.088 | 5.62 | 155.4 | HIP 54368 | 30.44 |
| 2025-11-26 | 11:08:16.91 | -17:21:54.3 | 15.079 | 5.53 | 156.7 | HIP 54368 | 28.94 |
| 2025-11-27 | 11:08:20.58 | -17:23:56.0 | 15.070 | 5.43 | 158.0 | HIP 54368 | 27.53 |
| 2025-11-28 | 11:08:23.99 | -17:25:56.8 | 15.060 | 5.33 | 159.3 | HIP 54368 | 26.21 |
| 2025-11-29 | 11:08:27.15 | -17:27:56.5 | 15.051 | 5.24 | 160.8 | HIP 54368 | 24.99 |
| 2025-11-30 | 11:08:30.04 | -17:29:55.1 | 15.041 | 5.14 | 162.2 | HIP 54368 | 23.87 |
| 2025-12-01 | 11:08:32.67 | -17:31:52.7 | 15.032 | 5.05 | 163.8 | HIP 54368 | 22.85 |
| 2025-12-02 | 11:08:35.04 | -17:33:49.1 | 15.022 | 4.97 | 165.3 | HIP 54368 | 21.95 |
| 2025-12-03 | 11:08:37.15 | -17:35:44.4 | 15.012 | 4.88 | 167.0 | HIP 54368 | 21.16 |
| 2025-12-04 | 11:08:39.00 | -17:37:38.5 | 15.002 | 4.80 | 168.7 | HIP 54368 | 20.49 |
| 2025-12-05 | 11:08:40.58 | -17:39:31.4 | 14.992 | 4.72 | 170.5 | HIP 54368 | 19.93 |
| 2025-12-06 | 11:08:41.89 | -17:41:23.1 | 14.982 | 4.64 | 172.3 | HIP 54368 | 19.50 |
| 2025-12-07 | 11:08:42.94 | -17:43:13.5 | 14.972 | 4.64 | 172.3 | HIP 54368 | 19.19 |