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C/1989 R1 (Helin-Roman)

Basic Information of C/1989 R1 (Helin-Roman)

Orbital Elements

Parameter Value
Orbit type C
Perihelion distance (AU) 1.324502
Eccentricity 1.000000
Inclination (deg) 128.134100
Longitude of ascending node (deg) 128.609600
Argument of perihelion (deg) 154.910300
Epoch 1989-08-20T06:59:02.400
Reference , MPC orbital elements

Latest Perihelion

Field Value
Date (UTC) 1989-08-20T06:59:02.400

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 09:53:07.81 -21:10:35.4 60.428 1.29 188.2 HIP 48480 22.61
2025-11-22 09:53:07.50 -21:11:06.0 60.416 1.28 190.1 HIP 48480 23.12
2025-11-23 09:53:07.11 -21:11:36.3 60.405 1.28 192.0 HIP 48480 23.63
2025-11-24 09:53:06.66 -21:12:06.3 60.393 1.27 193.9 HIP 48480 24.14
2025-11-25 09:53:06.13 -21:12:35.9 60.381 1.27 195.9 HIP 48480 24.64
2025-11-26 09:53:05.54 -21:13:05.2 60.370 1.27 197.8 HIP 48480 25.14
2025-11-27 09:53:04.87 -21:13:34.2 60.358 1.26 199.8 HIP 48480 25.63
2025-11-28 09:53:04.14 -21:14:02.7 60.346 1.26 201.7 HIP 48480 26.12
2025-11-29 09:53:03.33 -21:14:30.9 60.335 1.27 203.7 HIP 48480 26.61
2025-11-30 09:53:02.46 -21:14:58.7 60.323 1.27 205.6 HIP 48480 27.09
2025-12-01 09:53:01.52 -21:15:26.1 60.311 1.27 207.6 HIP 48480 27.57
2025-12-02 09:53:00.51 -21:15:53.1 60.300 1.27 209.5 HIP 48480 28.05
2025-12-03 09:52:59.43 -21:16:19.7 60.288 1.28 211.5 HIP 48480 28.52
2025-12-04 09:52:58.29 -21:16:45.9 60.276 1.28 213.4 HIP 48480 28.98
2025-12-05 09:52:57.07 -21:17:11.6 60.264 1.29 215.3 HIP 48480 29.45
2025-12-06 09:52:55.79 -21:17:37.0 60.253 1.30 217.2 HIP 48323 29.85
2025-12-07 09:52:54.44 -21:18:01.8 60.241 1.30 217.2 HIP 48323 29.76