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Location: Portsmouth, England, United Kingdom

The following ISS sightings are possible from Monday Sep 14, 2020 through Tuesday Sep 29, 2020

Date Visible Max Height Appears Disappears Share Event
Thu Sep 17, 9:25 PM < 1 min 14° 10° above SW 14° above SSW  
Fri Sep 18, 8:38 PM 2 min 25° 11° above SSW 25° above SSE  
Sat Sep 19, 7:51 PM 4 min 18° 10° above S 11° above E  
Sat Sep 19, 9:27 PM 2 min 33° 10° above WSW 33° above SW  
Sun Sep 20, 8:39 PM 4 min 50° 10° above SW 40° above ESE  
Sun Sep 20, 10:16 PM < 1 min 12° 10° above W 12° above W  
Mon Sep 21, 7:52 PM 6 min 36° 10° above SW 14° above E  
Mon Sep 21, 9:29 PM 2 min 42° 10° above W 42° above W  
Tue Sep 22, 8:41 PM 4 min 83° 10° above WSW 42° above E  
Tue Sep 22, 10:18 PM < 1 min 12° 10° above W 12° above W  
Wed Sep 23, 7:55 PM 5 min 67° 15° above WSW 14° above E  
Wed Sep 23, 9:31 PM 1 min 33° 15° above W 33° above WNW  
Thu Sep 24, 8:45 PM 2 min 76° 27° above W 53° above ENE  
Thu Sep 24, 10:20 PM < 1 min 10° 10° above WNW 10° above WNW  
Fri Sep 25, 7:58 PM 4 min 83° 33° above W 18° above ENE  
Fri Sep 25, 9:34 PM 1 min 33° 18° above WNW 33° above WNW  
Sat Sep 26, 8:47 PM 2 min 77° 27° above WNW 68° above ENE  
Sun Sep 27, 8:00 PM 3 min 74° 33° above WNW 22° above E  
Sun Sep 27, 9:35 PM < 1 min 22° 15° above W 22° above W  
Mon Sep 28, 7:13 PM 4 min 76° 42° above W 10° above E  
Mon Sep 28, 8:49 PM 2 min 80° 27° above W 80° above SSW  
2020-09-17 20:25:00.0,Thu Sep 17, 9:25 PM,< 1 min,14°,10° above SW,14° above SSW|2020-09-18 19:38:00.0,Fri Sep 18, 8:38 PM,2 min,25°,11° above SSW,25° above SSE|2020-09-19 18:51:00.0,Sat Sep 19, 7:51 PM,4 min,18°,10° above S,11° above E|2020-09-19 20:27:00.0,Sat Sep 19, 9:27 PM,2 min,33°,10° above WSW,33° above SW|2020-09-20 19:39:00.0,Sun Sep 20, 8:39 PM,4 min,50°,10° above SW,40° above ESE|2020-09-20 21:16:00.0,Sun Sep 20, 10:16 PM,< 1 min,12°,10° above W,12° above W|2020-09-21 18:52:00.0,Mon Sep 21, 7:52 PM,6 min,36°,10° above SW,14° above E|2020-09-21 20:29:00.0,Mon Sep 21, 9:29 PM,2 min,42°,10° above W,42° above W|2020-09-22 19:41:00.0,Tue Sep 22, 8:41 PM,4 min,83°,10° above WSW,42° above E|2020-09-22 21:18:00.0,Tue Sep 22, 10:18 PM,< 1 min,12°,10° above W,12° above W|2020-09-23 18:55:00.0,Wed Sep 23, 7:55 PM,5 min,67°,15° above WSW,14° above E|2020-09-23 20:31:00.0,Wed Sep 23, 9:31 PM,1 min,33°,15° above W,33° above WNW|2020-09-24 19:45:00.0,Thu Sep 24, 8:45 PM,2 min,76°,27° above W,53° above ENE|2020-09-24 21:20:00.0,Thu Sep 24, 10:20 PM,< 1 min,10°,10° above WNW,10° above WNW|2020-09-25 18:58:00.0,Fri Sep 25, 7:58 PM,4 min,83°,33° above W,18° above ENE|2020-09-25 20:34:00.0,Fri Sep 25, 9:34 PM,1 min,33°,18° above WNW,33° above WNW|2020-09-26 19:47:00.0,Sat Sep 26, 8:47 PM,2 min,77°,27° above WNW,68° above ENE|2020-09-27 19:00:00.0,Sun Sep 27, 8:00 PM,3 min,74°,33° above WNW,22° above E|2020-09-27 20:35:00.0,Sun Sep 27, 9:35 PM,< 1 min,22°,15° above W,22° above W|2020-09-28 18:13:00.0,Mon Sep 28, 7:13 PM,4 min,76°,42° above W,10° above E|2020-09-28 19:49:00.0,Mon Sep 28, 8:49 PM,2 min,80°,27° above W,80° above SSW|

The space station looks like an airplane or a very bright star moving across the sky, except it doesn’t have flashing lights or change direction. It will also be moving considerably faster than a typical airplane (airplanes generally fly at about 600 miles per hour; the space station flies at 17,500 miles per hour).

Below is a time-lapse photo of the space station moving across the sky.

The International Space Station is seen in this 30 second exposure as it flies over Elkton, VA early in the morning, Saturday, August 1, 2015. Photo Credit: NASA/Bill Ingalls The International Space Station is seen in this 30 second exposure as it flies over Elkton, VA early in the morning, Saturday, August 1, 2015. Photo Credit: NASA/Bill Ingalls

Visit the NASA Johnson Flickr Photostream

How do I Spot The Station?

What does all this sighting information mean?

Time is when the sighting opportunity will begin in your local time zone. All sightings will occur within a few hours before or after sunrise or sunset. This is the optimum viewing period as the sun reflects off the space station and contrasts against the darker sky.

Visible is the maximum time period the space station is visible before crossing back below the horizon.

Max Height is measured in degrees (also known as elevation). It represents the height of the space station from the horizon in the night sky. The horizon is at zero degrees, and directly overhead is ninety degrees. If you hold your fist at arm’s length and place your fist resting on the horizon, the top will be about 10 degrees.

Appears is the location in the sky where the station will be visible first. This value, like maximum height, also is measured in degrees from the horizon. The letters represent compass directions -- N is north, WNW is west by northwest, and so on.

Disappears represents where in the night sky the International Space Station will leave your field of view.

Astronomical Horizon chart. Click the link for a detailed description of the astronomical horizon and sighting alert messages.