C/1977 H1 (Helin)
Basic Information of C/1977 H1 (Helin)
Orbital Elements
| Parameter | Value |
|---|---|
| Orbit type | C |
| Perihelion distance (AU) | 1.117568 |
| Eccentricity | 1.000000 |
| Inclination (deg) | 43.195200 |
| Longitude of ascending node (deg) | 20.138500 |
| Argument of perihelion (deg) | 249.356500 |
| Epoch | 1977-06-30T23:20:58.560 |
| Reference | , MPC orbital elements |
Latest Perihelion
| Field | Value |
|---|---|
| Date (UTC) | 1977-06-30T23:20:58.560 |
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 | 03:40:14.83 | +55:16:25.4 | 72.737 | 2.01 | 258.4 | HIP 17248 | 12.19 |
| 2025-11-22 | 03:40:09.29 | +55:16:15.7 | 72.738 | 2.02 | 257.8 | HIP 17248 | 12.91 |
| 2025-11-23 | 03:40:03.76 | +55:16:05.5 | 72.739 | 2.02 | 257.2 | HIP 17248 | 13.64 |
| 2025-11-24 | 03:39:58.23 | +55:15:54.8 | 72.741 | 2.02 | 256.6 | HIP 17248 | 14.37 |
| 2025-11-25 | 03:39:52.71 | +55:15:43.5 | 72.742 | 2.02 | 256.0 | HIP 17248 | 15.11 |
| 2025-11-26 | 03:39:47.20 | +55:15:31.8 | 72.745 | 2.02 | 255.4 | HIP 17248 | 15.86 |
| 2025-11-27 | 03:39:41.71 | +55:15:19.6 | 72.747 | 2.02 | 254.8 | HIP 16941 | 15.23 |
| 2025-11-28 | 03:39:36.23 | +55:15:06.8 | 72.750 | 2.02 | 254.2 | HIP 16941 | 14.42 |
| 2025-11-29 | 03:39:30.76 | +55:14:53.6 | 72.752 | 2.02 | 253.6 | HIP 16941 | 13.61 |
| 2025-11-30 | 03:39:25.32 | +55:14:39.9 | 72.756 | 2.02 | 253.0 | HIP 16941 | 12.81 |
| 2025-12-01 | 03:39:19.89 | +55:14:25.8 | 72.759 | 2.02 | 252.4 | HIP 16941 | 12.00 |
| 2025-12-02 | 03:39:14.48 | +55:14:11.1 | 72.763 | 2.02 | 251.8 | HIP 16941 | 11.19 |
| 2025-12-03 | 03:39:09.10 | +55:13:56.0 | 72.766 | 2.02 | 251.2 | HIP 16941 | 10.39 |
| 2025-12-04 | 03:39:03.75 | +55:13:40.4 | 72.771 | 2.01 | 250.6 | HIP 16941 | 9.58 |
| 2025-12-05 | 03:38:58.42 | +55:13:24.4 | 72.775 | 2.01 | 250.0 | HIP 16941 | 8.77 |
| 2025-12-06 | 03:38:53.11 | +55:13:07.9 | 72.780 | 2.01 | 249.4 | HIP 16941 | 7.97 |
| 2025-12-07 | 03:38:47.84 | +55:12:51.0 | 72.784 | 2.01 | 249.4 | HIP 16941 | 7.17 |