planetarium / comet

Clear skies!

C/2017 A3 (Elenin)

Basic Information of C/2017 A3 (Elenin)

Orbital Elements

Parameter Value
Orbit type C
Perihelion distance (AU) 3.836839
Eccentricity 0.911376
Inclination (deg) 98.463700
Longitude of ascending node (deg) 97.802700
Argument of perihelion (deg) 303.883900
Epoch 2023-02-25T00:00:00.000
Reference , MPC orbital elements
Period (years) 284.861228

Latest Perihelion

Field Value
Date (UTC) 2017-01-31T04:53:11.040
Period (years) 284.861228

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 19:31:55.06 +77:25:01.1 19.098 8.55 147.1 HIP 95178 37.84
2025-11-22 19:32:29.07 +77:22:08.7 19.102 8.54 146.3 HIP 95178 38.40
2025-11-23 19:33:03.59 +77:19:18.1 19.106 8.52 145.6 HIP 97089 37.55
2025-11-24 19:33:38.61 +77:16:29.3 19.110 8.51 144.8 HIP 97089 36.91
2025-11-25 19:34:14.11 +77:13:42.2 19.114 8.49 144.1 HIP 96136 34.37
2025-11-26 19:34:50.07 +77:10:57.0 19.118 8.48 143.3 HIP 96136 32.00
2025-11-27 19:35:26.49 +77:08:13.7 19.122 8.46 142.5 HIP 96136 29.89
2025-11-28 19:36:03.36 +77:05:32.3 19.127 8.45 141.8 HIP 96136 28.07
2025-11-29 19:36:40.65 +77:02:52.8 19.131 8.43 141.1 HIP 96136 26.62
2025-11-30 19:37:18.36 +77:00:15.3 19.136 8.41 140.3 HIP 96136 25.58
2025-12-01 19:37:56.48 +76:57:39.7 19.140 8.40 139.6 HIP 96672 24.43
2025-12-02 19:38:34.98 +76:55:06.2 19.145 8.38 138.8 HIP 96672 21.58
2025-12-03 19:39:13.87 +76:52:34.6 19.150 8.36 138.1 HIP 96672 18.93
2025-12-04 19:39:53.12 +76:50:05.2 19.154 8.34 137.3 HIP 96672 16.59
2025-12-05 19:40:32.74 +76:47:37.8 19.159 8.33 136.6 HIP 96672 14.70
2025-12-06 19:41:12.70 +76:45:12.4 19.164 8.31 135.8 HIP 96672 13.43
2025-12-07 19:41:53.00 +76:42:49.2 19.169 8.31 135.8 HIP 96672 12.98