Bernardinelli-Bernstein (2014 UN271)

⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2021-08-13 (JD 2459439.5)
Eccentricity (e)0.9513043201 ± 6.02e-03
Semi-major axis (a)194.4223459498 AU ± 2.42e+01
Inclination (i)95.43506054° ± 7.18e-03
Long. of Asc. Node (Ω)189.34477802° ± 2.53e-02
Arg. of Perihelion (ω)198.66980242° ± 1.22e-01
Mean Anomaly (M)0.11179533° ± 2.17e-02
Mean Motion (n)0.0000013739°/day ± 2.57e-07
Perihelion dist (q)10.93428724 AU ± 1.66e+00
Aphelion dist (Q)16016.28297691 AU ± 4.72e+01
Orbital Period717381.86725854 yr ± 1.34e+05
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.196″
Uncertainty4
Orbit TypeComet
MOID8.511744 AU
Observations Used14
Oppositions—
Arc Total2010-2026
First Observation Used—
Last Observation Used2026-03-07
Observations (2243)
Date Type RA Dec Mag Band Observatory
2026-04-06 17:45:15 C 05 00 26.047 -70 07 10.45 – V M22
2026-04-06 17:49:56 C 05 00 26.230 -70 07 09.80 – V M22
2026-04-06 17:54:04 C 05 00 26.266 -70 07 09.44 – V M22
2026-04-06 18:18:20 C 05 00 27.058 -70 07 05.41 – V M22
2026-04-06 18:42:22 C 05 00 27.569 -70 07 03.04 – V M22
2026-04-07 23:27:44 C 05 01 13.937 -70 03 21.96 – V W68
2026-04-07 23:31:50 C 05 01 14.095 -70 03 21.20 – V W68
2026-04-07 23:41:22 C 05 01 14.314 -70 03 19.98 – V W68
2026-04-07 23:59:05 C 05 01 14.818 -70 03 17.82 – V W68
2026-04-09 17:21:31 C 05 02 22.824 -69 58 04.37 – V M22
2026-04-09 17:25:34 C 05 02 22.910 -69 58 03.79 – V M22
2026-04-09 17:36:13 C 05 02 23.297 -69 58 02.03 – V M22
2026-04-09 17:50:51 C 05 02 23.638 -69 58 00.48 – V M22
2026-04-11 00:14:16 C 05 03 14.796 -69 54 11.99 – V W68
2026-04-11 00:19:43 C 05 03 14.894 -69 54 11.74 – V W68
2026-04-11 00:28:03 C 05 03 15.149 -69 54 10.66 – V W68
2026-04-11 00:42:42 C 05 03 15.487 -69 54 09.04 – V W68
2026-04-12 23:46:17 C 05 04 36.310 -69 48 22.79 – X X29
2026-04-12 23:57:40 C 05 04 36.415 -69 48 21.46 – X X29
2026-04-13 00:08:29 C 05 04 36.941 -69 48 19.40 – X X29
2026-05-05 12:25:55 C 05 22 10.632 -68 51 03.67 – Z 323
2026-05-05 12:32:04 C 05 22 10.925 -68 51 03.49 – Z 323
2026-05-05 12:38:14 C 05 22 11.177 -68 51 02.23 – Z 323
2026-05-12 22:58:25 C 05 28 40.898 -68 36 20.05 – V W68
2026-05-12 23:02:39 C 05 28 40.946 -68 36 20.56 – V W68
2026-05-12 23:11:46 C 05 28 41.318 -68 36 19.84 – V W68
2026-05-14 16:47:50 C 05 30 14.834 -68 33 13.10 – V M22
2026-05-14 16:51:51 C 05 30 14.863 -68 33 13.43 – V M22
2026-05-14 16:59:49 C 05 30 15.278 -68 33 12.06 – V M22
2026-05-14 17:16:33 C 05 30 15.792 -68 33 11.38 – V M22
2026-05-21 22:51:01 C 05 36 54.199 -68 21 41.80 – V W68
2026-05-21 22:55:03 C 05 36 54.379 -68 21 41.11 – V W68
2026-05-21 23:05:14 C 05 36 54.746 -68 21 41.51 – V W68
2026-05-21 23:19:35 C 05 36 55.411 -68 21 40.39 – V W68
2026-05-19 11:50:25 C 05 34 37.296 -68 25 20.39 – Z 323
2026-05-19 11:56:34 C 05 34 37.541 -68 25 20.10 – Z 323
2026-05-19 12:02:41 C 05 34 37.824 -68 25 19.67 – Z 323
2026-05-30 23:51:43 C 05 45 28.987 -68 10 36.73 – V W68
2026-05-30 23:56:32 C 05 45 29.076 -68 10 37.67 – V W68
2026-05-31 00:05:51 C 05 45 29.585 -68 10 36.84 – V W68
2026-05-31 00:36:05 C 05 45 30.607 -68 10 35.22 – V W68
2026-05-31 17:08:11 C 05 46 10.500 -68 09 54.50 – V M22
2026-05-31 17:22:16 C 05 46 11.129 -68 09 53.71 – V M22
2026-05-31 17:27:35 C 05 46 11.424 -68 09 52.56 – V M22
2026-05-31 17:44:16 C 05 46 12.050 -68 09 52.74 – V M22
2026-06-25 22:03:22 C 06 11 09.430 -68 00 11.77 – X X29
2026-06-25 22:11:02 C 06 11 09.823 -68 00 11.77 – X X29
2026-06-25 22:18:04 C 06 11 10.114 -68 00 11.66 – X X29
2026-06-30 10:06:24 C 06 15 41.556 -68 01 40.76 – V W68
2026-06-30 10:20:51 C 06 15 42.190 -68 01 41.12 – V W68