planetarium / comet

Clear skies!

C/1989 S1 (SMM)

Basic Information of C/1989 S1 (SMM)

Orbital Elements

Parameter Value
Orbit type C
Perihelion distance (AU) 0.004756
Eccentricity 1.000000
Inclination (deg) 144.767700
Longitude of ascending node (deg) 9.636000
Argument of perihelion (deg) 87.498800
Epoch 1989-09-28T20:31:29.280
Reference , MPC orbital elements

Latest Perihelion

Field Value
Date (UTC) 1989-09-28T20:31:29.280

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 06:49:03.86 -12:43:03.3 60.806 2.02 246.0 HIP 32696 4.18
2025-11-22 06:49:00.84 -12:43:23.1 60.799 2.04 246.8 HIP 32696 4.94
2025-11-23 06:48:57.76 -12:43:42.3 60.793 2.06 247.7 HIP 32696 5.72
2025-11-24 06:48:54.64 -12:44:01.0 60.786 2.07 248.5 HIP 32696 6.51
2025-11-25 06:48:51.48 -12:44:19.3 60.780 2.09 249.3 HIP 32696 7.31
2025-11-26 06:48:48.27 -12:44:37.0 60.773 2.11 250.1 HIP 32637 7.73
2025-11-27 06:48:45.02 -12:44:54.2 60.767 2.13 250.9 HIP 32637 7.00
2025-11-28 06:48:41.72 -12:45:10.8 60.762 2.14 251.7 HIP 32637 6.31
2025-11-29 06:48:38.38 -12:45:27.0 60.756 2.16 252.5 HIP 32637 5.66
2025-11-30 06:48:35.01 -12:45:42.6 60.751 2.17 253.2 HIP 32637 5.08
2025-12-01 06:48:31.59 -12:45:57.6 60.745 2.19 254.0 HIP 32637 4.59
2025-12-02 06:48:28.13 -12:46:12.1 60.740 2.21 254.7 HIP 32637 4.24
2025-12-03 06:48:24.64 -12:46:26.1 60.736 2.22 255.4 HIP 32637 4.06
2025-12-04 06:48:21.11 -12:46:39.5 60.731 2.24 256.2 HIP 32637 4.08
2025-12-05 06:48:17.55 -12:46:52.3 60.727 2.25 256.9 HIP 32637 4.30
2025-12-06 06:48:13.96 -12:47:04.6 60.722 2.27 257.6 HIP 32637 4.69
2025-12-07 06:48:10.33 -12:47:16.3 60.718 2.27 257.6 HIP 32637 5.23