C/2017 S7 (Lemmon)
Basic Information of C/2017 S7 (Lemmon)
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | C |
| Perihelion distance (AU) | 7.639678 |
| Eccentricity | 0.999741 |
| Inclination (deg) | 124.230500 |
| Longitude of ascending node (deg) | 262.647400 |
| Argument of perihelion (deg) | 187.734100 |
| Epoch | 2025-11-21T00:00:00.000 |
| Reference | MPEC 2020-SI8, MPC orbital elements |
| Period (years) | 5065973.750049 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2017-05-25T08:24:25.920 |
| Period (years) | 5065973.750049 |
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 | 23:21:34.53 | -62:14:30.9 | 18.810 | 6.84 | 324.2 | HIP 115397 | 21.61 |
| 2025-11-22 | 23:21:20.80 | -62:12:17.6 | 18.825 | 6.82 | 325.4 | HIP 115338 | 23.77 |
| 2025-11-23 | 23:21:07.54 | -62:10:02.8 | 18.840 | 6.79 | 326.6 | HIP 115338 | 21.77 |
| 2025-11-24 | 23:20:54.74 | -62:07:46.6 | 18.855 | 6.77 | 327.8 | HIP 115338 | 19.90 |
| 2025-11-25 | 23:20:42.42 | -62:05:29.0 | 18.871 | 6.75 | 329.0 | HIP 115338 | 18.21 |
| 2025-11-26 | 23:20:30.56 | -62:03:10.1 | 18.885 | 6.73 | 330.2 | HIP 115338 | 16.75 |
| 2025-11-27 | 23:20:19.17 | -62:00:49.9 | 18.900 | 6.71 | 331.4 | HIP 115338 | 15.57 |
| 2025-11-28 | 23:20:08.25 | -61:58:28.6 | 18.915 | 6.69 | 332.6 | HIP 115338 | 14.74 |
| 2025-11-29 | 23:19:57.79 | -61:56:06.1 | 18.930 | 6.67 | 333.8 | HIP 115338 | 14.32 |
| 2025-11-30 | 23:19:47.80 | -61:53:42.5 | 18.945 | 6.65 | 335.0 | HIP 115338 | 14.33 |
| 2025-12-01 | 23:19:38.27 | -61:51:17.9 | 18.960 | 6.63 | 336.2 | HIP 115338 | 14.78 |
| 2025-12-02 | 23:19:29.20 | -61:48:52.3 | 18.974 | 6.61 | 337.4 | HIP 115338 | 15.62 |
| 2025-12-03 | 23:19:20.59 | -61:46:25.8 | 18.989 | 6.60 | 338.6 | HIP 115338 | 16.80 |
| 2025-12-04 | 23:19:12.44 | -61:43:58.3 | 19.004 | 6.58 | 339.7 | HIP 115338 | 18.23 |
| 2025-12-05 | 23:19:04.74 | -61:41:30.1 | 19.018 | 6.57 | 340.9 | HIP 114932 | 18.96 |
| 2025-12-06 | 23:18:57.50 | -61:39:01.1 | 19.032 | 6.56 | 342.1 | HIP 114932 | 19.74 |
| 2025-12-07 | 23:18:50.71 | -61:36:31.3 | 19.047 | 6.56 | 342.1 | HIP 114932 | 20.87 |