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Tuesday, August 20, 2019

 

More Early Evening Bright International Space Sation Passes (21-26 August, 2019)

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.
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-2.518:37:3310°N18:40:2526°NE18:41:5619°Evisible
20 Aug-0.520:14:0910°W20:14:5114°W20:14:5114°Wvisible
21 Aug-2.919:24:5810°WNW19:28:1446°SW19:28:4242°SSWvisible
22 Aug-3.818:36:0410°NW18:39:2789°SW18:42:2513°SEvisible
22 Aug-0.420:14:5810°SW20:15:1911°SW20:15:1911°SWvisible
23 Aug-1.419:25:0710°WSW19:27:3619°SSW19:28:5515°Svisible
24 Aug-2.018:35:3910°W18:38:3929°SW18:41:4110°SSEvisible
26 Aug-1.018:36:1310°WSW18:38:0314°SSW18:39:5410°Svisible

Passes from Brisbane (AEST)

Date Brightness Start Highest point End Pass type
(mag) Time Alt. Az. Time Alt. Az. Time Alt. Az.
20 Aug-1.719:08:3710°W19:11:2223°SW19:11:5622°SSWvisible
21 Aug-2.718:19:1810°WNW18:22:3344°SW18:25:4710°SSEvisible
23 Aug-1.018:19:5310°WSW18:21:5215°SW18:23:5210°Svisible


Passes from Hobart (AEST)

Date Brightness Start Highest point End Pass type
(mag) Time Alt. Az. Time Alt. Az. Time Alt. Az.
20 Aug-1.819:10:2810°NNW19:11:5619°N19:11:5619°Nvisible
21 Aug-1.718:22:4510°NNE18:24:4215°NE18:25:4713°ENEvisible
21 Aug-1.119:57:3810°WNW19:58:4219°WNW19:58:4219°WNWvisible
22 Aug-3.819:08:5410°NW19:12:1565°NE19:12:2564°NEvisible
23 Aug-3.018:20:2410°NNW18:23:3337°NE18:26:0115°ESEvisible
23 Aug-1.419:57:0710°W19:58:5525°WSW19:58:5525°WSWvisible
24 Aug-3.119:08:0410°WNW19:11:2552°SSW19:12:2536°SSEvisible
25 Aug-3.718:19:1010°WNW18:22:3483°SW18:25:4911°SEvisible
25 Aug-1.319:56:5210°WSW19:58:4320°SW19:58:4320°SWvisible
26 Aug-2.119:07:4010°W19:10:4129°SSW19:12:0222°SSEvisible
27 Aug-2.618:18:3010°W18:21:4438°SSW18:24:5810°SEvisible
27 Aug-1.119:56:3610°SW19:58:1017°SSW19:58:1017°SSWvisible
28 Aug-1.719:07:2410°WSW19:10:0321°S19:11:2217°SSEvisible
29 Aug-1.918:18:0910°WSW18:21:0124°SSW18:23:5210°SEvisible
29 Aug-1.119:56:0110°SW19:57:2516°SSW19:57:2516°SSWvisible


Passes from Melbourne (AEST)

Date Brightness Start Highest point End Pass type
(mag) Time Alt. Az. Time Alt. Az. Time Alt. Az.
20 Aug-3.019:08:5010°NNW19:11:5636°NE19:11:5636°NEvisible
21 Aug-2.118:20:4810°N18:23:2020°NE18:25:4611°Evisible
21 Aug-1.719:56:3810°WNW19:58:4229°W19:58:4229°Wvisible
22 Aug-3.619:07:4010°WNW19:11:0271°SW19:12:2533°SEvisible
23 Aug-3.618:18:5610°NW18:22:1761°NE18:25:3910°ESEvisible
23 Aug-1.319:56:4410°WSW19:58:5519°SW19:58:5519°SWvisible
24 Aug-2.019:07:1910°W19:10:1727°SSW19:12:2515°SSEvisible
25 Aug-2.718:18:0710°WNW18:21:2344°SW18:24:4110°SEvisible
25 Aug-0.819:57:3310°SW19:58:4312°SSW19:58:4312°SSWvisible
26 Aug-1.119:07:4010°WSW19:09:4415°SSW19:11:4810°SSEvisible
27 Aug-1.518:18:0310°WSW18:20:4120°SSW18:23:2010°SSEvisible


Passes from Perth (AWST)   

Date Brightness Start Highest point End Pass type
(mag) Time Alt. Az. Time Alt. Az. Time Alt. Az.
20 Aug-3.218:39:3610°NNW18:42:4740°NE18:44:5218°ESEvisible
20 Aug-0.320:17:1910°WSW20:17:4712°WSW20:17:4712°WSWvisible
21 Aug-2.019:27:4510°W19:30:4428°SW19:31:3724°Svisible
22 Aug-3.018:38:3510°WNW18:41:5452°SW18:45:1310°SEvisible
23 Aug-0.919:28:4910°SW19:30:1112°SSW19:31:3410°Svisible
24 Aug-1.318:38:4310°W18:41:1119°SW18:43:4110°SSEvisible


Passes from Sydney (AEST)

Date Brightness Start Highest point End Pass type
(mag) Time Alt. Az. Time Alt. Az. Time Alt. Az.
20 Aug-3.319:08:5110°NW19:11:5662°WSW19:11:5662°WSWvisible
21 Aug-3.718:20:0810°NW18:23:2861°NE18:25:4618°ESEvisible
21 Aug-0.319:58:2510°WSW19:58:4211°WSW19:58:4211°WSWvisible
22 Aug-1.719:08:4510°W19:11:3123°SW19:12:2520°Svisible
23 Aug-2.518:19:2610°WNW18:22:3738°SW18:25:5010°SSEvisible
24 Aug-0.819:10:0210°SW19:11:0111°SSW19:12:0010°Svisible
25 Aug-1.118:19:4510°WSW18:21:5816°SSW18:24:1210°Svisible
  

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.

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