Tuesday, August 20, 2019
More Early Evening Bright International Space Sation Passes (21-26 August, 2019)
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| The ISS passes close to Jupiter as seen from Melbourne on the evening of Friday 23 August at 18:22 AEST. Simulated in Stellarium (the ISS will actually be a bright dot), click to embiggen. | The ISS passes above Jupiter as seen from Adelaide on the evening of Thursday 22 August at at 18:39 ACST. Simulated in Stellarium (the ISS will actually be a bright dot), click to embiggen. | The ISS passes between the Pointers and the Southern Cross, as seen from Perth on the evening of Thursday 22 August at 18:42 AWST. Simulated in Stellarium (the ISS will actually be a bright dot)click to embiggen. |
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| All sky chart showing local times from Heavens Above for Friday 23 August for Melbourne. | All sky chart showing local times from Heavens Above for Thursday 22 August for Adelaide. | All sky chart showing local times from Heavens Above for Thursday 22 August for Perth. |
Over the next few days there are a series of very bright ISS passes in the early evening or twilight where the ISS passes close to between the Pointers and the Southern Cross (Adelaide 21st, Brisbane, 21st, Perth 22nd, Sydney 22nd 23rd) or close to Jupiter (Adelaide 22nd,Hobart 22nd 25th,Melboure 22nd, 23rd, Sydney 21st) or other iconic contellations. Some are in twilight but the passes are very bright and will be well worth watching for. There are a number of other relatively bright satellites about at this time which you may see close to the ISS.
The following tables are from data provided from Heavens Above.
Passes from Adelaide (ACDST)
| Date | Brightness | Start | Highest point | End | Pass type | ||||||
| (mag) | Time | Alt. | Az. | Time | Alt. | Az. | Time | Alt. | Az. | ||
| 20 Aug | -2.5 | 18:37:33 | 10° | N | 18:40:25 | 26° | NE | 18:41:56 | 19° | E | visible |
| 20 Aug | -0.5 | 20:14:09 | 10° | W | 20:14:51 | 14° | W | 20:14:51 | 14° | W | visible |
| 21 Aug | -2.9 | 19:24:58 | 10° | WNW | 19:28:14 | 46° | SW | 19:28:42 | 42° | SSW | visible |
| 22 Aug | -3.8 | 18:36:04 | 10° | NW | 18:39:27 | 89° | SW | 18:42:25 | 13° | SE | visible |
| 22 Aug | -0.4 | 20:14:58 | 10° | SW | 20:15:19 | 11° | SW | 20:15:19 | 11° | SW | visible |
| 23 Aug | -1.4 | 19:25:07 | 10° | WSW | 19:27:36 | 19° | SSW | 19:28:55 | 15° | S | visible |
| 24 Aug | -2.0 | 18:35:39 | 10° | W | 18:38:39 | 29° | SW | 18:41:41 | 10° | SSE | visible |
| 26 Aug | -1.0 | 18:36:13 | 10° | WSW | 18:38:03 | 14° | SSW | 18:39:54 | 10° | S | visible |
Passes from Brisbane (AEST)
| Date | Brightness | Start | Highest point | End | Pass type | ||||||
| (mag) | Time | Alt. | Az. | Time | Alt. | Az. | Time | Alt. | Az. | ||
| 20 Aug | -1.7 | 19:08:37 | 10° | W | 19:11:22 | 23° | SW | 19:11:56 | 22° | SSW | visible |
| 21 Aug | -2.7 | 18:19:18 | 10° | WNW | 18:22:33 | 44° | SW | 18:25:47 | 10° | SSE | visible |
| 23 Aug | -1.0 | 18:19:53 | 10° | WSW | 18:21:52 | 15° | SW | 18:23:52 | 10° | S | visible |
Passes from Hobart (AEST)
| Date | Brightness | Start | Highest point | End | Pass type | ||||||
| (mag) | Time | Alt. | Az. | Time | Alt. | Az. | Time | Alt. | Az. | ||
| 20 Aug | -1.8 | 19:10:28 | 10° | NNW | 19:11:56 | 19° | N | 19:11:56 | 19° | N | visible |
| 21 Aug | -1.7 | 18:22:45 | 10° | NNE | 18:24:42 | 15° | NE | 18:25:47 | 13° | ENE | visible |
| 21 Aug | -1.1 | 19:57:38 | 10° | WNW | 19:58:42 | 19° | WNW | 19:58:42 | 19° | WNW | visible |
| 22 Aug | -3.8 | 19:08:54 | 10° | NW | 19:12:15 | 65° | NE | 19:12:25 | 64° | NE | visible |
| 23 Aug | -3.0 | 18:20:24 | 10° | NNW | 18:23:33 | 37° | NE | 18:26:01 | 15° | ESE | visible |
| 23 Aug | -1.4 | 19:57:07 | 10° | W | 19:58:55 | 25° | WSW | 19:58:55 | 25° | WSW | visible |
| 24 Aug | -3.1 | 19:08:04 | 10° | WNW | 19:11:25 | 52° | SSW | 19:12:25 | 36° | SSE | visible |
| 25 Aug | -3.7 | 18:19:10 | 10° | WNW | 18:22:34 | 83° | SW | 18:25:49 | 11° | SE | visible |
| 25 Aug | -1.3 | 19:56:52 | 10° | WSW | 19:58:43 | 20° | SW | 19:58:43 | 20° | SW | visible |
| 26 Aug | -2.1 | 19:07:40 | 10° | W | 19:10:41 | 29° | SSW | 19:12:02 | 22° | SSE | visible |
| 27 Aug | -2.6 | 18:18:30 | 10° | W | 18:21:44 | 38° | SSW | 18:24:58 | 10° | SE | visible |
| 27 Aug | -1.1 | 19:56:36 | 10° | SW | 19:58:10 | 17° | SSW | 19:58:10 | 17° | SSW | visible |
| 28 Aug | -1.7 | 19:07:24 | 10° | WSW | 19:10:03 | 21° | S | 19:11:22 | 17° | SSE | visible |
| 29 Aug | -1.9 | 18:18:09 | 10° | WSW | 18:21:01 | 24° | SSW | 18:23:52 | 10° | SE | visible |
| 29 Aug | -1.1 | 19:56:01 | 10° | SW | 19:57:25 | 16° | SSW | 19:57:25 | 16° | SSW | visible |
Passes from Melbourne (AEST)
| Date | Brightness | Start | Highest point | End | Pass type | ||||||
| (mag) | Time | Alt. | Az. | Time | Alt. | Az. | Time | Alt. | Az. | ||
| 20 Aug | -3.0 | 19:08:50 | 10° | NNW | 19:11:56 | 36° | NE | 19:11:56 | 36° | NE | visible |
| 21 Aug | -2.1 | 18:20:48 | 10° | N | 18:23:20 | 20° | NE | 18:25:46 | 11° | E | visible |
| 21 Aug | -1.7 | 19:56:38 | 10° | WNW | 19:58:42 | 29° | W | 19:58:42 | 29° | W | visible |
| 22 Aug | -3.6 | 19:07:40 | 10° | WNW | 19:11:02 | 71° | SW | 19:12:25 | 33° | SE | visible |
| 23 Aug | -3.6 | 18:18:56 | 10° | NW | 18:22:17 | 61° | NE | 18:25:39 | 10° | ESE | visible |
| 23 Aug | -1.3 | 19:56:44 | 10° | WSW | 19:58:55 | 19° | SW | 19:58:55 | 19° | SW | visible |
| 24 Aug | -2.0 | 19:07:19 | 10° | W | 19:10:17 | 27° | SSW | 19:12:25 | 15° | SSE | visible |
| 25 Aug | -2.7 | 18:18:07 | 10° | WNW | 18:21:23 | 44° | SW | 18:24:41 | 10° | SE | visible |
| 25 Aug | -0.8 | 19:57:33 | 10° | SW | 19:58:43 | 12° | SSW | 19:58:43 | 12° | SSW | visible |
| 26 Aug | -1.1 | 19:07:40 | 10° | WSW | 19:09:44 | 15° | SSW | 19:11:48 | 10° | SSE | visible |
| 27 Aug | -1.5 | 18:18:03 | 10° | WSW | 18:20:41 | 20° | SSW | 18:23:20 | 10° | SSE | visible |
Passes from Perth (AWST)
| Date | Brightness | Start | Highest point | End | Pass type | ||||||
| (mag) | Time | Alt. | Az. | Time | Alt. | Az. | Time | Alt. | Az. | ||
| 20 Aug | -3.2 | 18:39:36 | 10° | NNW | 18:42:47 | 40° | NE | 18:44:52 | 18° | ESE | visible |
| 20 Aug | -0.3 | 20:17:19 | 10° | WSW | 20:17:47 | 12° | WSW | 20:17:47 | 12° | WSW | visible |
| 21 Aug | -2.0 | 19:27:45 | 10° | W | 19:30:44 | 28° | SW | 19:31:37 | 24° | S | visible |
| 22 Aug | -3.0 | 18:38:35 | 10° | WNW | 18:41:54 | 52° | SW | 18:45:13 | 10° | SE | visible |
| 23 Aug | -0.9 | 19:28:49 | 10° | SW | 19:30:11 | 12° | SSW | 19:31:34 | 10° | S | visible |
| 24 Aug | -1.3 | 18:38:43 | 10° | W | 18:41:11 | 19° | SW | 18:43:41 | 10° | SSE | visible |
Passes from Sydney (AEST)
| Date | Brightness | Start | Highest point | End | Pass type | ||||||
| (mag) | Time | Alt. | Az. | Time | Alt. | Az. | Time | Alt. | Az. | ||
| 20 Aug | -3.3 | 19:08:51 | 10° | NW | 19:11:56 | 62° | WSW | 19:11:56 | 62° | WSW | visible |
| 21 Aug | -3.7 | 18:20:08 | 10° | NW | 18:23:28 | 61° | NE | 18:25:46 | 18° | ESE | visible |
| 21 Aug | -0.3 | 19:58:25 | 10° | WSW | 19:58:42 | 11° | WSW | 19:58:42 | 11° | WSW | visible |
| 22 Aug | -1.7 | 19:08:45 | 10° | W | 19:11:31 | 23° | SW | 19:12:25 | 20° | S | visible |
| 23 Aug | -2.5 | 18:19:26 | 10° | WNW | 18:22:37 | 38° | SW | 18:25:50 | 10° | SSE | visible |
| 24 Aug | -0.8 | 19:10:02 | 10° | SW | 19:11:01 | 11° | SSW | 19:12:00 | 10° | S | visible |
| 25 Aug | -1.1 | 18:19:45 | 10° | WSW | 18:21:58 | 16° | SSW | 18:24:12 | 10° | S | visible |
When and what you will see is VERY location dependent, so you need to use either Heavens Above or CalSky to get site specific predictions for your location, a small difference in location can mean the difference between the ISS passing over a star or planets or missing it completely. As always, start looking several minutes before the pass is going to start to get yourself oriented and your eyes dark adapted. Be patient, there may be slight differences in the time of the ISS appearing due to orbit changes not picked up by the predictions. Use the most recent prediction for your site.
Labels: ISS, Satellite, unaided eye
# posted by Ian Musgrave @ 11:27 pm 
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