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Location: Portsmouth, England, United Kingdom

The following ISS sightings are possible from Wednesday Feb 24, 2021 through Thursday Mar 11, 2021

Date Visible Max Height Appears Disappears Share Event
Thu Feb 25, 5:23 AM 5 min 48° 27° above SW 10° above E  
Fri Feb 26, 4:37 AM 3 min 33° 33° above SE 10° above E  
Fri Feb 26, 6:10 AM 7 min 85° 10° above W 10° above E  
Sat Feb 27, 3:52 AM 1 min 13° 13° above E 10° above E  
Sat Feb 27, 5:25 AM 5 min 82° 33° above WSW 10° above ENE  
Sun Feb 28, 4:39 AM 3 min 55° 55° above ESE 10° above ENE  
Mon Mar 1, 3:53 AM 1 min 18° 18° above E 10° above E  
Mon Mar 1, 5:26 AM 5 min 77° 28° above W 10° above E  
Tue Mar 2, 4:41 AM 3 min 75° 75° above ENE 10° above E  
Wed Mar 3, 3:55 AM 1 min 23° 23° above E 10° above ENE  
Wed Mar 3, 5:28 AM 5 min 77° 24° above WNW 10° above E  
Thu Mar 4, 4:42 AM 3 min 74° 73° above NNW 10° above E  
Fri Mar 5, 3:57 AM 2 min 26° 26° above ENE 10° above E  
Fri Mar 5, 5:30 AM 5 min 83° 21° above WNW 10° above ESE  
Sat Mar 6, 4:44 AM 4 min 84° 68° above WNW 10° above E  
Sun Mar 7, 3:58 AM 2 min 30° 30° above E 10° above E  
Sun Mar 7, 5:31 AM 6 min 50° 18° above W 10° above SE  
Mon Mar 8, 4:46 AM 4 min 66° 60° above WSW 10° above ESE  
Tue Mar 9, 4:00 AM 2 min 26° 26° above ESE 10° above ESE  
Tue Mar 9, 5:33 AM 5 min 26° 16° above W 10° above SSE  
Wed Mar 10, 4:48 AM 3 min 36° 36° above SSW 10° above SE  
Thu Mar 11, 4:02 AM 1 min 18° 18° above SE 10° above SE  
Thu Mar 11, 5:35 AM 2 min 12° 11° above WSW 10° above SSW  
2021-02-25 05:23:00.0,Thu Feb 25, 5:23 AM,5 min,48°,27° above SW,10° above E|2021-02-26 04:37:00.0,Fri Feb 26, 4:37 AM,3 min,33°,33° above SE,10° above E|2021-02-26 06:10:00.0,Fri Feb 26, 6:10 AM,7 min,85°,10° above W,10° above E|2021-02-27 03:52:00.0,Sat Feb 27, 3:52 AM,1 min,13°,13° above E,10° above E|2021-02-27 05:25:00.0,Sat Feb 27, 5:25 AM,5 min,82°,33° above WSW,10° above ENE|2021-02-28 04:39:00.0,Sun Feb 28, 4:39 AM,3 min,55°,55° above ESE,10° above ENE|2021-03-01 03:53:00.0,Mon Mar 1, 3:53 AM,1 min,18°,18° above E,10° above E|2021-03-01 05:26:00.0,Mon Mar 1, 5:26 AM,5 min,77°,28° above W,10° above E|2021-03-02 04:41:00.0,Tue Mar 2, 4:41 AM,3 min,75°,75° above ENE,10° above E|2021-03-03 03:55:00.0,Wed Mar 3, 3:55 AM,1 min,23°,23° above E,10° above ENE|2021-03-03 05:28:00.0,Wed Mar 3, 5:28 AM,5 min,77°,24° above WNW,10° above E|2021-03-04 04:42:00.0,Thu Mar 4, 4:42 AM,3 min,74°,73° above NNW,10° above E|2021-03-05 03:57:00.0,Fri Mar 5, 3:57 AM,2 min,26°,26° above ENE,10° above E|2021-03-05 05:30:00.0,Fri Mar 5, 5:30 AM,5 min,83°,21° above WNW,10° above ESE|2021-03-06 04:44:00.0,Sat Mar 6, 4:44 AM,4 min,84°,68° above WNW,10° above E|2021-03-07 03:58:00.0,Sun Mar 7, 3:58 AM,2 min,30°,30° above E,10° above E|2021-03-07 05:31:00.0,Sun Mar 7, 5:31 AM,6 min,50°,18° above W,10° above SE|2021-03-08 04:46:00.0,Mon Mar 8, 4:46 AM,4 min,66°,60° above WSW,10° above ESE|2021-03-09 04:00:00.0,Tue Mar 9, 4:00 AM,2 min,26°,26° above ESE,10° above ESE|2021-03-09 05:33:00.0,Tue Mar 9, 5:33 AM,5 min,26°,16° above W,10° above SSE|2021-03-10 04:48:00.0,Wed Mar 10, 4:48 AM,3 min,36°,36° above SSW,10° above SE|2021-03-11 04:02:00.0,Thu Mar 11, 4:02 AM,1 min,18°,18° above SE,10° above SE|2021-03-11 05:35:00.0,Thu Mar 11, 5:35 AM,2 min,12°,11° above WSW,10° above SSW|

What am I looking for in the sky?

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.

National Aeronautics and Space Administration Page Editor: Bill Keeter NASA Official: Jacob Keaton