C/1965 S1-A (Ikeya-Seki)
Basic Information of C/1965 S1-A (Ikeya-Seki)
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | C |
| Perihelion distance (AU) | 0.010155 |
| Eccentricity | 0.999883 |
| Inclination (deg) | 147.434300 |
| Longitude of ascending node (deg) | 85.820100 |
| Argument of perihelion (deg) | 7.525800 |
| Epoch | 2023-02-25T00:00:00.000 |
| Reference | , MPC orbital elements |
| Period (years) | 808.613707 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 1965-11-23T19:28:59.520 |
| Period (years) | 808.613707 |
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 | 17:15:26.14 | -26:31:51.1 | 78.110 | 1.80 | 93.2 | HIP 84391 | 2.89 |
| 2025-11-22 | 17:15:29.34 | -26:31:53.5 | 78.118 | 1.81 | 93.3 | HIP 84391 | 3.60 |
| 2025-11-23 | 17:15:32.57 | -26:31:55.9 | 78.126 | 1.82 | 93.3 | HIP 84391 | 4.33 |
| 2025-11-24 | 17:15:35.82 | -26:31:58.5 | 78.133 | 1.83 | 93.4 | HIP 84391 | 5.05 |
| 2025-11-25 | 17:15:39.08 | -26:32:01.0 | 78.140 | 1.84 | 93.4 | HIP 84405 | 5.63 |
| 2025-11-26 | 17:15:42.36 | -26:32:03.7 | 78.147 | 1.85 | 93.5 | HIP 84405 | 6.14 |
| 2025-11-27 | 17:15:45.65 | -26:32:06.4 | 78.154 | 1.85 | 93.6 | HIP 84478 | 6.29 |
| 2025-11-28 | 17:15:48.97 | -26:32:09.1 | 78.160 | 1.86 | 93.6 | HIP 84478 | 5.54 |
| 2025-11-29 | 17:15:52.29 | -26:32:12.0 | 78.166 | 1.87 | 93.7 | HIP 84478 | 4.80 |
| 2025-11-30 | 17:15:55.63 | -26:32:14.8 | 78.172 | 1.88 | 93.7 | HIP 84478 | 4.05 |
| 2025-12-01 | 17:15:58.98 | -26:32:17.8 | 78.178 | 1.88 | 93.8 | HIP 84478 | 3.30 |
| 2025-12-02 | 17:16:02.34 | -26:32:20.7 | 78.183 | 1.89 | 93.8 | HIP 84478 | 2.55 |
| 2025-12-03 | 17:16:05.71 | -26:32:23.8 | 78.188 | 1.89 | 93.9 | HIP 84478 | 1.79 |
| 2025-12-04 | 17:16:09.09 | -26:32:26.8 | 78.192 | 1.90 | 94.0 | HIP 84478 | 1.04 |
| 2025-12-05 | 17:16:12.48 | -26:32:30.0 | 78.197 | 1.90 | 94.0 | HIP 84478 | 0.29 |
| 2025-12-06 | 17:16:15.87 | -26:32:33.2 | 78.201 | 1.91 | 94.1 | HIP 84478 | 0.49 |
| 2025-12-07 | 17:16:19.27 | -26:32:36.4 | 78.205 | 1.91 | 94.1 | HIP 84478 | 1.25 |