C/1991 A2 (Arai)
Basic Information of C/1991 A2 (Arai)
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | C |
| Perihelion distance (AU) | 1.399950 |
| Eccentricity | 0.989499 |
| Inclination (deg) | 70.720700 |
| Longitude of ascending node (deg) | 115.757700 |
| Argument of perihelion (deg) | 337.139600 |
| Epoch | 2023-02-25T00:00:00.000 |
| Reference | , MPC orbital elements |
| Period (years) | 1539.298335 |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 1990-11-29T09:16:50.880 |
| Period (years) | 1539.298335 |
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 | 18:32:52.70 | +12:53:23.5 | 56.580 | 2.32 | 113.5 | HIP 90957 | 17.12 |
| 2025-11-22 | 18:32:56.19 | +12:53:01.3 | 56.592 | 2.34 | 112.7 | HIP 90957 | 17.20 |
| 2025-11-23 | 18:32:59.73 | +12:52:39.7 | 56.603 | 2.35 | 111.9 | HIP 90957 | 17.31 |
| 2025-11-24 | 18:33:03.32 | +12:52:18.6 | 56.615 | 2.37 | 111.1 | HIP 90957 | 17.47 |
| 2025-11-25 | 18:33:06.94 | +12:51:58.1 | 56.626 | 2.38 | 110.4 | HIP 90957 | 17.66 |
| 2025-11-26 | 18:33:10.61 | +12:51:38.2 | 56.638 | 2.40 | 109.7 | HIP 90957 | 17.89 |
| 2025-11-27 | 18:33:14.31 | +12:51:18.8 | 56.649 | 2.41 | 108.9 | HIP 90957 | 18.16 |
| 2025-11-28 | 18:33:18.06 | +12:51:00.0 | 56.659 | 2.43 | 108.2 | HIP 90957 | 18.47 |
| 2025-11-29 | 18:33:21.85 | +12:50:41.8 | 56.670 | 2.44 | 107.5 | HIP 90957 | 18.81 |
| 2025-11-30 | 18:33:25.67 | +12:50:24.2 | 56.680 | 2.46 | 106.8 | HIP 90957 | 19.18 |
| 2025-12-01 | 18:33:29.52 | +12:50:07.2 | 56.690 | 2.47 | 106.1 | HIP 90957 | 19.59 |
| 2025-12-02 | 18:33:33.42 | +12:49:50.8 | 56.700 | 2.48 | 105.4 | HIP 90957 | 20.03 |
| 2025-12-03 | 18:33:37.34 | +12:49:35.0 | 56.710 | 2.49 | 104.7 | HIP 91019 | 20.47 |
| 2025-12-04 | 18:33:41.30 | +12:49:19.8 | 56.720 | 2.51 | 104.1 | HIP 91019 | 19.94 |
| 2025-12-05 | 18:33:45.29 | +12:49:05.2 | 56.729 | 2.52 | 103.4 | HIP 91019 | 19.44 |
| 2025-12-06 | 18:33:49.31 | +12:48:51.2 | 56.738 | 2.53 | 102.7 | HIP 91019 | 19.00 |
| 2025-12-07 | 18:33:53.36 | +12:48:37.8 | 56.747 | 2.53 | 102.7 | HIP 91019 | 18.61 |