planetarium / comet

Clear skies!

C/2025 R2 (SWAN)

Basic Information of C/2025 R2 (SWAN)

Orbital Elements

Parameter Value
Orbit type C
Perihelion distance (AU) 0.504093
Eccentricity 0.994047
Inclination (deg) 4.472800
Longitude of ascending node (deg) 335.331000
Argument of perihelion (deg) 308.352000
Epoch 2025-11-21T00:00:00.000
Reference MPEC 2025-W75, COBS 30 days
Period (years) 779.223742

Latest Perihelion

Field Value
Date (UTC) 2025-09-12T20:13:20.640
Period (years) 779.223742

Finding Chart

Sky Tracks

C/2025 R2 (SWAN) · Next 30 Days Steps: 3 days · geocentric

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 23:40:15.56 +06:16:04.7 0.742 116.94 74.2 HIP 116715 16.70
2025-11-22 23:43:16.76 +06:28:47.2 0.764 112.52 74.2 HIP 116877 27.48
2025-11-23 23:46:11.18 +06:41:00.2 0.786 108.45 74.2 HIP 117311 28.78
2025-11-24 23:48:59.37 +06:52:46.4 0.808 104.68 74.2 HIP 117398 20.35
2025-11-25 23:51:41.78 +07:04:07.8 0.831 101.20 74.2 HIP 117677 23.41
2025-11-26 23:54:18.86 +07:15:06.7 0.853 97.98 74.2 HIP 117927 16.28
2025-11-27 23:56:50.99 +07:25:44.7 0.876 94.99 74.2 HIP 118063 3.13
2025-11-28 23:59:18.53 +07:36:03.6 0.899 92.21 74.2 HIP 118200 11.91
2025-11-29 00:01:41.80 +07:46:04.9 0.922 89.63 74.2 HIP 21 25.66
2025-11-30 00:04:01.11 +07:55:49.9 0.945 87.23 74.2 HIP 247 24.41
2025-12-01 00:06:16.72 +08:05:20.0 0.968 84.99 74.1 HIP 603 27.71
2025-12-02 00:08:28.88 +08:14:36.2 0.992 82.90 74.1 HIP 710 14.18
2025-12-03 00:10:37.83 +08:23:39.6 1.015 80.94 74.1 HIP 795 11.96
2025-12-04 00:12:43.77 +08:32:31.0 1.039 79.12 74.1 HIP 1073 24.88
2025-12-05 00:14:46.90 +08:41:11.4 1.063 77.41 74.0 HIP 1197 8.47
2025-12-06 00:16:47.40 +08:49:41.6 1.087 75.81 74.0 HIP 1392 9.61
2025-12-07 00:18:45.43 +08:58:02.4 1.111 75.81 74.0 HIP 1554 10.22