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C/1991 L4 (Helin-Alu)

Basic Information of C/1991 L4 (Helin-Alu)

Orbital Elements

Parameter Value
Orbit type C
Perihelion distance (AU) 4.893004
Eccentricity 1.001528
Inclination (deg) 49.165300
Longitude of ascending node (deg) 253.744900
Argument of perihelion (deg) 30.974000
Epoch 2023-02-25T00:00:00.000
Reference , MPC orbital elements

Latest Perihelion

Field Value
Date (UTC) 1992-02-24T13:41:48.480

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 04:37:07.51 +25:15:10.6 53.376 2.65 259.9 HIP 21532 28.73
2025-11-22 04:37:02.90 +25:14:59.6 53.375 2.66 259.9 HIP 21532 29.07
2025-11-23 04:36:58.27 +25:14:48.4 53.375 2.67 259.8 HIP 21532 29.45
2025-11-24 04:36:53.63 +25:14:37.1 53.375 2.67 259.8 HIP 21532 29.86
2025-11-25 04:36:48.98 +25:14:25.7 53.376 2.68 259.7 HIP 21532 30.30
2025-11-26 04:36:44.31 +25:14:14.2 53.377 2.69 259.7 HIP 21532 30.78
2025-11-27 04:36:39.64 +25:14:02.6 53.378 2.69 259.6 HIP 21532 31.29
2025-11-28 04:36:34.95 +25:13:50.9 53.380 2.70 259.5 HIP 21532 31.83
2025-11-29 04:36:30.26 +25:13:39.1 53.381 2.70 259.5 HIP 21532 32.40
2025-11-30 04:36:25.56 +25:13:27.3 53.384 2.70 259.4 HIP 21532 33.00
2025-12-01 04:36:20.86 +25:13:15.4 53.386 2.70 259.3 HIP 21532 33.62
2025-12-02 04:36:16.16 +25:13:03.3 53.389 2.71 259.3 HIP 21532 34.27
2025-12-03 04:36:11.46 +25:12:51.3 53.392 2.71 259.2 HIP 21532 34.94
2025-12-04 04:36:06.76 +25:12:39.1 53.395 2.70 259.1 HIP 21532 35.63
2025-12-05 04:36:02.06 +25:12:26.9 53.399 2.70 259.1 HIP 21532 36.33
2025-12-06 04:35:57.37 +25:12:14.6 53.403 2.70 259.0 HIP 21532 37.06
2025-12-07 04:35:52.68 +25:12:02.2 53.407 2.70 259.0 HIP 21532 37.81