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117P/Helin-Roman-Alu

Basic Information of 117P/Helin-Roman-Alu

Orbital Elements

Parameter Value
Orbit type P
Perihelion distance (AU) 3.089470
Eccentricity 0.250838
Inclination (deg) 8.661800
Longitude of ascending node (deg) 58.785400
Argument of perihelion (deg) 224.923300
Epoch 2025-11-21T00:00:00.000
Reference MPEC 2025-W75, MPC orbital elements
Period (years) 8.374567

Latest Perihelion

Field Value
Date (UTC) 2030-11-24T12:01:09.781
Period (years) 8.374567

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 05:44:57.04 +27:27:13.7 4.138 18.92 277.6 HIP 27071 14.93
2025-11-22 05:44:23.23 +27:28:13.6 4.132 19.25 277.3 HIP 27016 12.93
2025-11-23 05:43:48.79 +27:29:11.9 4.125 19.57 277.0 HIP 27016 11.43
2025-11-24 05:43:13.76 +27:30:08.8 4.120 19.87 276.7 HIP 27016 14.65
2025-11-25 05:42:38.14 +27:31:04.0 4.114 20.17 276.4 HIP 26852 17.09
2025-11-26 05:42:01.98 +27:31:57.7 4.109 20.45 276.1 HIP 26852 14.28
2025-11-27 05:41:25.29 +27:32:49.7 4.104 20.72 275.8 HIP 26708 13.28
2025-11-28 05:40:48.09 +27:33:40.0 4.099 20.97 275.6 HIP 26708 7.90
2025-11-29 05:40:10.42 +27:34:28.5 4.095 21.21 275.3 HIP 26708 9.30
2025-11-30 05:39:32.31 +27:35:15.3 4.091 21.43 275.1 HIP 26708 15.92
2025-12-01 05:38:53.77 +27:36:00.3 4.087 21.64 274.8 HIP 26708 23.83
2025-12-02 05:38:14.83 +27:36:43.5 4.083 21.83 274.6 HIP 26351 27.66
2025-12-03 05:37:35.52 +27:37:24.8 4.080 22.02 274.3 HIP 26351 21.24
2025-12-04 05:36:55.88 +27:38:04.2 4.077 22.18 274.1 HIP 26291 13.47
2025-12-05 05:36:15.91 +27:38:41.7 4.075 22.33 273.8 HIP 26291 4.64
2025-12-06 05:35:35.66 +27:39:17.3 4.073 22.47 273.6 HIP 26291 4.42
2025-12-07 05:34:55.15 +27:39:50.9 4.071 22.47 273.6 HIP 26291 13.37