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C/2021 U4 (Leonard)

Basic Information of C/2021 U4 (Leonard)

Orbital Elements

Parameter Value
Orbit type C
Perihelion distance (AU) 1.787427
Eccentricity 0.960189
Inclination (deg) 152.877700
Longitude of ascending node (deg) 241.805100
Argument of perihelion (deg) 237.279600
Epoch 2022-01-21T00:00:00.000
Reference , MPC orbital elements
Period (years) 300.841566

Latest Perihelion

Field Value
Date (UTC) 2021-12-21T22:38:21.120
Period (years) 300.841566

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 15:14:36.82 -11:39:41.7 12.935 9.79 99.1 HIP 74659 17.30
2025-11-22 15:14:52.60 -11:40:19.0 12.938 9.75 99.0 HIP 74659 15.53
2025-11-23 15:15:08.34 -11:40:55.5 12.941 9.71 98.8 HIP 74659 14.62
2025-11-24 15:15:24.02 -11:41:31.2 12.943 9.67 98.7 HIP 74659 14.70
2025-11-25 15:15:39.63 -11:42:06.1 12.945 9.62 98.5 HIP 74659 15.76
2025-11-26 15:15:55.18 -11:42:40.2 12.947 9.57 98.3 HIP 74659 17.60
2025-11-27 15:16:10.66 -11:43:13.4 12.948 9.52 98.1 HIP 74659 20.00
2025-11-28 15:16:26.06 -11:43:45.7 12.949 9.47 98.0 HIP 74659 22.77
2025-11-29 15:16:41.38 -11:44:17.1 12.950 9.41 97.8 HIP 74659 25.78
2025-11-30 15:16:56.61 -11:44:47.6 12.951 9.35 97.6 HIP 74659 28.95
2025-12-01 15:17:11.76 -11:45:17.2 12.951 9.29 97.4 HIP 74659 32.22
2025-12-02 15:17:26.81 -11:45:45.9 12.951 9.22 97.2 HIP 74659 35.55
2025-12-03 15:17:41.77 -11:46:13.6 12.951 9.16 97.0 HIP 74659 38.93
2025-12-04 15:17:56.62 -11:46:40.3 12.951 9.09 96.8 HIP 74659 42.33
2025-12-05 15:18:11.37 -11:47:06.1 12.950 9.01 96.6 HIP 75064 40.15
2025-12-06 15:18:26.00 -11:47:30.9 12.949 8.94 96.4 HIP 75064 37.10
2025-12-07 15:18:40.53 -11:47:54.7 12.947 8.94 96.4 HIP 75064 34.18