Pages

Thursday, May 15, 2025

Bright Passes of Tiangiong AND Starlink trains (later post), 16-24 May, 2025.

Tiangong as seen from Adelaide on the evening of Saturday 17 May at 18:38 ACST as it passes by Canopus. Simulated in Stellarium (the Tiangong will actually be a bright dot). Click to embiggen.Tiangong as seen from Melbourne on the evening of Friday 16 May at 18:32 AEST as it passes by Canopus. Simulated in Stellarium (Tiangong will actually be a bright dot). Click to embiggen.Tiangong as seen from Perth on the evening of  Saturday 17 May at at 18:41 AWST as it passes close to Alpha Centauri. Simulated in Stellarium (Tiangong will actually be a bright dot). Click to embiggen.
All sky chart showing local times from Heavens Above for Friday 9 February for Adelaide.All sky chart showing local times from Heavens Above for Friday 9 February for Sydney.All sky chart showing local times from Heavens Above for Saturday 17 May for Perth.

 Relatively bright passes of the Chinese space station Tiangong visible in the evening from Australia aren't that common. Over the next few days most of Australia will see bright evening twilight passes of the Tiangong space station (weather permitting). Many of these go very close to bight stars and will be rather dramatic. 

There are also some "bright Starlink trains from recent launches in the evening, I will d a separate post soon, after dinner.  If you can't wait go to Heavens Above and look at the dedicated pass times for your site for Starlink G15-4, launched 13 May.   Also some bright passes of Starlink G6-67 launched on the 14th, for Melbourne and Hobart.

The following tables are from data provided from Heavens Above. Particularly impressive passes are highlighted in yellow, passes entering the shadow in blue.
    

Adelaide (ACST): 

Date Brightness Start Highest point End Pass type
(mag) Time Alt. Az. Time Alt. Az. Time Alt. Az.
15 May-0.819:00:0210°SW19:02:1232°SSW19:02:1232°SSWvisible
16 May-1.017:59:3410°SW18:02:2629°SSE18:04:4414°ESEvisible
16 May0.919:36:1310°WSW19:36:5515°WSW19:36:5515°WSWvisible
17 May-2.118:35:4010°WSW18:38:5063°SSE18:39:3147°Evisible
18 May-0.519:11:5710°W19:14:2534°NW19:14:2534°NWvisible
19 May-2.018:11:0810°WSW18:14:2074°NNW18:17:1811°ENEvisible
20 May0.418:47:4410°W18:50:0920°NW18:52:3310°NNEvisible
21 May-0.617:46:3110°WSW17:49:3138°NNW17:52:2910°NEvisible
22 May1.318:24:2010°NW18:25:0511°NW18:25:5110°NNWvisible

Brisbane (AEST):

Date Brightness Start Highest point End Pass type
(mag) Time Alt. Az. Time Alt. Az. Time Alt. Az.
16 May0.418:34:0710°SSW18:34:4413°SSW18:34:4413°SSWvisible
17 May0.217:34:2210°S17:35:2811°SSE17:36:3510°SEvisible
18 May-1.018:09:1610°SSW18:12:0227°SSE18:12:1426°SEvisible
19 May-1.018:45:0210°WSW18:47:1842°WSW18:47:1842°WSWvisible
20 May-1.917:44:2210°SW17:47:2850°SSE17:50:2311°ENEvisible
20 May1.419:22:1810°WNW19:22:3611°WNW19:22:3611°WNWvisible
21 May-0.318:20:3210°WSW18:23:2230°NW18:25:5811°NNEvisible
23 May1.017:56:2510°WNW17:58:1514°NW18:00:0410°Nvisible

Darwin (ACST): 

Date Brightness Start Highest point End Pass type
(mag) Time Alt. Az. Time Alt. Az. Time Alt. Az.
21 May-1.219:25:2710°SSW19:28:1228°SE19:28:1228°SEvisible
22 May-0.620:01:1010°WSW20:04:0334°NW20:04:1134°NWvisible
23 May-2.319:00:0610°SW19:03:1576°SE19:06:2010°NEvisible
24 May1.019:37:0710°W19:38:5314°NW19:40:3910°Nvisible

Hobart (AEST): 

Date Brightness Start Highest point End Pass type
(mag) Time Alt. Az. Time Alt. Az. Time Alt. Az.
15 May-1.817:54:2310°W17:57:3263°N18:00:0215°ENEvisible
15 May1.019:31:2010°W19:32:1215°WNW19:32:1215°WNWvisible
16 May-0.918:30:4110°W18:33:4137°NNW18:34:4428°NNEvisible
17 May-1.417:30:0510°W17:33:1251°NNW17:36:1910°ENEvisible
17 May0.419:07:2310°WNW19:09:3117°NNW19:09:3117°NNWvisible
18 May-0.118:06:2410°W18:09:0926°NNW18:11:5210°NEvisible
19 May1.018:43:5810°NW18:44:5011°NNW18:45:4210°NNWvisible
20 May0.717:42:0710°WNW17:44:2118°NNW17:46:3510°NNEvisible


Melbourne (AEST):

Date Brightness Start Highest point End Pass type
(mag) Time Alt. Az. Time Alt. Az. Time Alt. Az.
15 May-1.517:54:0810°WSW17:57:1242°S18:00:0112°ESEvisible
15 May0.419:30:5710°WSW19:32:1221°WSW19:32:1221°WSWvisible
16 May-2.218:30:2610°WSW18:33:3769°SSE18:34:4536°Evisible
17 May-1.119:06:4310°W19:09:3144°NW19:09:3144°NWvisible
18 May-2.118:06:0210°WSW18:09:1379°NNW18:12:1411°ENEvisible
18 May1.219:43:4710°WNW19:44:2612°WNW19:44:2612°WNWvisible
19 May-0.118:42:2610°W18:45:0926°NNW18:47:1813°NNEvisible
20 May-1.117:41:2810°W17:44:3346°NNW17:47:3610°NEvisible
21 May0.918:18:1810°WNW18:20:1415°NW18:22:0910°Nvisible

Perth (AWST): 

Date Brightness Start Highest point End Pass type
(mag) Time Alt. Az. Time Alt. Az. Time Alt. Az.
15 May-0.119:02:5110°SW19:04:2220°SSW19:04:2220°SSWvisible
16 May-0.318:02:3010°SW18:04:5119°SSE18:06:5511°SEvisible
16 May1.119:38:4910°WSW19:39:0512°WSW19:39:0512°WSWvisible
17 May-1.518:38:2210°SW18:41:2238°SSE18:41:4236°SEvisible
18 May-0.719:14:2610°WSW19:16:3737°W19:16:3737°Wvisible
19 May-2.218:13:4410°WSW18:16:5468°SSE18:19:3014°ENEvisible
19 May1.519:51:4010°WNW19:51:4210°WNW19:51:4210°WNWvisible
20 May-0.218:50:0310°W18:52:4928°NW18:54:4915°NNEvisible
21 May-1.517:49:0010°WSW17:52:0860°NNW17:55:1510°NEvisible
22 May0.918:25:5810°WNW18:27:4714°NW18:29:3510°Nvisible


Sydney (AEST):

Date Brightness Start Highest point End Pass type
(mag) Time Alt. Az. Time Alt. Az. Time Alt. Az.
15 May-0.617:56:0410°SW17:58:4223°S18:00:0118°SEvisible
16 May-1.318:32:1110°SW18:34:4439°S18:34:4439°Svisible
17 May-1.017:31:4310°SW17:34:3529°SSE17:37:2110°ESEvisible
17 May0.519:08:2110°WSW19:09:3120°WSW19:09:3120°WSWvisible
18 May-2.218:07:4310°WSW18:10:5374°SSE18:12:1431°ENEvisible
19 May-0.418:44:0410°W18:46:5228°NW18:47:1827°NNWvisible
20 May-1.617:43:0710°WSW17:46:1459°NNW17:49:2110°NEvisible
21 May0.818:20:0110°WNW18:21:5815°NW18:23:5410°Nvisible

When and what you will see is VERY location dependent, so you need to use  Heavens Above  to get site specific predictions for your location, a small difference in location can mean the difference between Tiangong passing over a star 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 Tiangong appearing due to orbit changes not picked up by the predictions. Use the most recent prediction for your site.


No comments:

Post a Comment