C/2018 EF9 (Lemmon)
Basic Information of C/2018 EF9 (Lemmon)
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | C |
| Perihelion distance (AU) | 1.562190 |
| Eccentricity | 0.996523 |
| Inclination (deg) | 84.628700 |
| Longitude of ascending node (deg) | 172.561700 |
| Argument of perihelion (deg) | 72.635100 |
| Epoch | 2023-02-25T00:00:00.000 |
| Reference | , MPC orbital elements |
| Period (years) | 9523.437679 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2018-05-21T01:08:24.000 |
| Period (years) | 9523.437679 |
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 | 00:56:03.37 | -39:31:20.6 | 19.654 | 4.92 | 292.4 | HIP 4476 | 14.76 |
| 2025-11-22 | 00:55:53.94 | -39:30:35.5 | 19.671 | 4.87 | 293.9 | HIP 4476 | 16.61 |
| 2025-11-23 | 00:55:44.70 | -39:29:48.2 | 19.688 | 4.82 | 295.3 | HIP 4476 | 18.45 |
| 2025-11-24 | 00:55:35.67 | -39:28:58.7 | 19.705 | 4.77 | 296.8 | HIP 4476 | 20.28 |
| 2025-11-25 | 00:55:26.84 | -39:28:07.1 | 19.723 | 4.72 | 298.3 | HIP 4476 | 22.09 |
| 2025-11-26 | 00:55:18.22 | -39:27:13.3 | 19.740 | 4.68 | 299.8 | HIP 4369 | 22.26 |
| 2025-11-27 | 00:55:09.80 | -39:26:17.5 | 19.758 | 4.64 | 301.3 | HIP 4369 | 22.05 |
| 2025-11-28 | 00:55:01.60 | -39:25:19.6 | 19.776 | 4.59 | 302.9 | HIP 4369 | 21.95 |
| 2025-11-29 | 00:54:53.62 | -39:24:19.7 | 19.793 | 4.55 | 304.5 | HIP 4369 | 21.95 |
| 2025-11-30 | 00:54:45.85 | -39:23:17.8 | 19.811 | 4.51 | 306.1 | HIP 4369 | 22.05 |
| 2025-12-01 | 00:54:38.30 | -39:22:14.0 | 19.829 | 4.48 | 307.7 | HIP 4369 | 22.25 |
| 2025-12-02 | 00:54:30.97 | -39:21:08.3 | 19.847 | 4.44 | 309.4 | HIP 4181 | 21.30 |
| 2025-12-03 | 00:54:23.86 | -39:20:00.6 | 19.865 | 4.41 | 311.0 | HIP 4181 | 19.58 |
| 2025-12-04 | 00:54:16.98 | -39:18:51.1 | 19.883 | 4.38 | 312.7 | HIP 4181 | 17.86 |
| 2025-12-05 | 00:54:10.32 | -39:17:39.8 | 19.901 | 4.35 | 314.4 | HIP 4181 | 16.16 |
| 2025-12-06 | 00:54:03.89 | -39:16:26.7 | 19.919 | 4.33 | 316.1 | HIP 4181 | 14.47 |
| 2025-12-07 | 00:53:57.68 | -39:15:11.9 | 19.938 | 4.33 | 316.1 | HIP 4181 | 12.78 |