C/2010 A4 (Siding Spring)
Basic Information of C/2010 A4 (Siding Spring)
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | C |
| Perihelion distance (AU) | 2.720991 |
| Eccentricity | 0.990384 |
| Inclination (deg) | 96.588400 |
| Longitude of ascending node (deg) | 346.494800 |
| Argument of perihelion (deg) | 271.536500 |
| Epoch | 2020-05-31T00:00:00.000 |
| Reference | , MPC orbital elements |
| Period (years) | 4759.912573 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 2010-10-10T20:18:57.600 |
| Period (years) | 4759.912573 |
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 | 20:40:32.54 | +42:44:51.3 | 31.384 | 3.71 | 155.9 | HIP 102154 | 20.40 |
| 2025-11-22 | 20:40:35.84 | +42:43:30.1 | 31.397 | 3.70 | 154.6 | HIP 102154 | 19.07 |
| 2025-11-23 | 20:40:39.30 | +42:42:09.9 | 31.410 | 3.70 | 153.3 | HIP 102154 | 17.74 |
| 2025-11-24 | 20:40:42.92 | +42:40:50.6 | 31.424 | 3.69 | 152.0 | HIP 102154 | 16.43 |
| 2025-11-25 | 20:40:46.69 | +42:39:32.3 | 31.437 | 3.69 | 150.7 | HIP 102154 | 15.13 |
| 2025-11-26 | 20:40:50.61 | +42:38:15.1 | 31.450 | 3.69 | 149.4 | HIP 102154 | 13.86 |
| 2025-11-27 | 20:40:54.68 | +42:36:58.9 | 31.464 | 3.68 | 148.2 | HIP 102154 | 12.61 |
| 2025-11-28 | 20:40:58.91 | +42:35:43.8 | 31.477 | 3.68 | 146.9 | HIP 102154 | 11.39 |
| 2025-11-29 | 20:41:03.28 | +42:34:29.8 | 31.490 | 3.68 | 145.6 | HIP 102154 | 10.22 |
| 2025-11-30 | 20:41:07.79 | +42:33:16.9 | 31.504 | 3.68 | 144.3 | HIP 102154 | 9.11 |
| 2025-12-01 | 20:41:12.45 | +42:32:05.1 | 31.517 | 3.68 | 143.1 | HIP 102154 | 8.10 |
| 2025-12-02 | 20:41:17.25 | +42:30:54.5 | 31.530 | 3.68 | 141.8 | HIP 102154 | 7.22 |
| 2025-12-03 | 20:41:22.19 | +42:29:45.0 | 31.544 | 3.68 | 140.5 | HIP 102154 | 6.52 |
| 2025-12-04 | 20:41:27.27 | +42:28:36.8 | 31.557 | 3.69 | 139.3 | HIP 102154 | 6.07 |
| 2025-12-05 | 20:41:32.49 | +42:27:29.7 | 31.570 | 3.69 | 138.0 | HIP 102154 | 5.93 |
| 2025-12-06 | 20:41:37.84 | +42:26:23.9 | 31.583 | 3.69 | 136.8 | HIP 102154 | 6.12 |
| 2025-12-07 | 20:41:43.32 | +42:25:19.3 | 31.597 | 3.69 | 136.8 | HIP 102154 | 6.61 |