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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