2018-10-28
Recent observations by Blake Estes acquired on 22 October 2018 using the 60'' Mount Wilson telescope show a bright cloud feature at the border of the bright polar hood. This storm has now been observed by other amateur astronomers and is visible in some observations obtained with large telescopes.
Marc Delcroix has studied the amateur images and has provided the ephemeris bellow. Note that this is the first storm observed in Uranus by amateurs since 2014 and that the professional community would highly wellcome new observations of this feature. Observations with non narrow IR filters like the 610, 685 and 742 nm are recommended.
WinJUPOS 10.3.11 (Uranus), C.M. transit times, 2018/11/14 10:06 Object longitude: L = 270,0° - 24,7470°/d * (T - 2018 Oct 09,5) Output format: Date UT (C.M. of System 1) ------------------------------------------------------------------------------ 2018 Nov 01 12:48 ( 60°) 2018 Nov 02 05:14 ( 43°) 21:39 ( 26°) 2018 Nov 03 14:05 ( 9°) 2018 Nov 04 06:31 ( 352°) 22:57 ( 335°) 2018 Nov 05 15:22 ( 318°) 2018 Nov 06 07:48 ( 301°) 2018 Nov 07 00:14 ( 285°) 16:40 ( 268°) 2018 Nov 08 09:05 ( 250°) 2018 Nov 09 01:31 ( 234°) 17:57 ( 217°) 2018 Nov 10 10:23 ( 200°) 2018 Nov 11 19:14 ( 166°) 2018 Nov 12 11:40 ( 149°) 2018 Nov 13 04:06 ( 132°) 20:32 ( 115°) 2018 Nov 14 12:57 ( 98°) 2018 Nov 15 05:23 ( 81°) 21:49 ( 64°) 2018 Nov 16 14:15 ( 47°) 2018 Nov 17 23:06 ( 13°) 2018 Nov 18 15:32 ( 356°) 2018 Nov 19 07:58 ( 340°) 2018 Nov 20 00:24 ( 323°) 16:49 ( 306°) 2018 Nov 21 09:15 ( 289°) 2018 Nov 22 01:41 ( 272°) 18:07 ( 255°) 2018 Nov 23 10:33 ( 238°) 2018 Nov 24 02:58 ( 221°) 19:24 ( 204°) 2018 Nov 25 11:50 ( 187°) 2018 Nov 26 04:16 ( 170°) 2018 Nov 27 13:07 ( 136°) 2018 Nov 28 05:33 ( 119°) 21:59 ( 102°) 2018 Nov 29 14:25 ( 86°) 2018 Nov 30 06:50 ( 68°) 23:16 ( 51°) 2018 Dec 01 15:42 ( 35°) 2018 Dec 02 08:08 ( 18°) 2018 Dec 03 00:34 ( 1°) 16:59 ( 344°) 2018 Dec 04 09:25 ( 327°) 2018 Dec 05 01:51 ( 310°) 18:17 ( 293°) 2018 Dec 06 10:43 ( 276°) 2018 Dec 07 03:08 ( 259°) 19:34 ( 242°) 2018 Dec 08 12:00 ( 225°) 2018 Dec 09 04:26 ( 208°) 20:52 ( 191°) 2018 Dec 10 13:17 ( 174°) 2018 Dec 11 05:43 ( 157°) 22:09 ( 140°) 2018 Dec 12 14:35 ( 124°) 2018 Dec 13 07:01 ( 107°) 2018 Dec 14 15:52 ( 73°) 2018 Dec 15 08:18 ( 56°) 2018 Dec 16 00:44 ( 39°) 17:10 ( 22°) 2018 Dec 17 09:36 ( 5°) 2018 Dec 18 02:01 ( 348°) 18:27 ( 331°) 2018 Dec 19 10:53 ( 314°) 2018 Dec 20 03:19 ( 297°) 19:45 ( 280°) 2018 Dec 21 12:10 ( 263°) 2018 Dec 22 04:36 ( 246°) 21:02 ( 229°) 2018 Dec 23 13:28 ( 213°) 2018 Dec 24 05:54 ( 196°) 22:19 ( 178°) 2018 Dec 25 14:45 ( 162°) 2018 Dec 26 07:11 ( 145°) 23:37 ( 128°) 2018 Dec 27 16:03 ( 111°) 2018 Dec 29 00:54 ( 77°) 17:20 ( 60°) 2018 Dec 30 09:46 ( 43°) 2018 Dec 31 02:12 ( 26°) 18:38 ( 9°) 2019 Jan 01 11:03 ( 352°) 2019 Jan 02 03:29 ( 335°) 19:55 ( 318°) 2019 Jan 03 12:21 ( 301°) 2019 Jan 04 04:47 ( 285°) 2019 Jan 05 13:38 ( 250°) 2019 Jan 06 06:04 ( 234°) 22:30 ( 217°) 2019 Jan 07 14:56 ( 200°) 2019 Jan 08 07:22 ( 183°) 23:47 ( 166°) 2019 Jan 09 16:13 ( 149°) 2019 Jan 10 08:39 ( 132°) 2019 Jan 11 01:05 ( 115°) 17:31 ( 98°) 2019 Jan 12 09:56 ( 81°) 2019 Jan 13 02:22 ( 64°) 18:48 ( 47°) 2019 Jan 14 11:14 ( 30°) 2019 Jan 15 03:40 ( 13°) 2019 Jan 16 12:31 ( 339°) 2019 Jan 17 04:57 ( 323°) 21:23 ( 306°) 2019 Jan 18 13:49 ( 289°) 2019 Jan 19 06:15 ( 272°) 22:40 ( 255°) 2019 Jan 20 15:06 ( 238°) 2019 Jan 21 07:32 ( 221°) 23:58 ( 204°) 2019 Jan 22 16:24 ( 187°) 2019 Jan 23 08:49 ( 170°) 2019 Jan 24 01:15 ( 153°) 17:41 ( 136°) 2019 Jan 25 10:07 ( 119°) 2019 Jan 26 02:33 ( 102°) 2019 Jan 27 11:24 ( 68°) 2019 Jan 28 03:50 ( 51°) 20:16 ( 35°) 2019 Jan 29 12:42 ( 18°) 2019 Jan 30 05:08 ( 1°) 21:33 ( 344°) 2019 Jan 31 13:59 ( 327°) ------------------------------------------------------------------------------Links: