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Location: Portsmouth, England, United Kingdom

The following ISS sightings are possible from Friday Mar 17, 2023 through Saturday Apr 1, 2023

Date Visible Max Height Appears Disappears Share Event
Fri Mar 17, 8:00 PM 3 min 36° 10° above SW 36° above SSE  
Sat Mar 18, 7:13 PM 5 min 27° 10° above SSW 17° above E  
Sat Mar 18, 8:49 PM 2 min 28° 10° above WSW 28° above WSW  
Sun Mar 19, 8:01 PM 4 min 68° 10° above WSW 56° above ESE  
Mon Mar 20, 7:14 PM 6 min 51° 10° above SW 14° above E  
Mon Mar 20, 8:50 PM 2 min 39° 10° above W 39° above W  
Tue Mar 21, 8:03 PM 4 min 83° 10° above W 43° above ENE  
Tue Mar 21, 9:40 PM 1 min 14° 10° above W 14° above WNW  
Wed Mar 22, 7:15 PM 6 min 84° 10° above WSW 13° above ENE  
Wed Mar 22, 8:52 PM 2 min 46° 10° above W 46° above WNW  
Thu Mar 23, 8:04 PM 4 min 74° 10° above W 42° above ENE  
Thu Mar 23, 9:41 PM < 1 min 14° 10° above WNW 14° above W  
Fri Mar 24, 7:16 PM 6 min 77° 10° above W 12° above E  
Fri Mar 24, 8:53 PM 3 min 47° 10° above WNW 47° above W  
Sat Mar 25, 8:05 PM 4 min 85° 10° above W 43° above E  
Sat Mar 25, 9:42 PM 1 min 13° 10° above W 13° above W  
Sun Mar 26, 8:17 PM 6 min 77° 10° above W 12° above E  
Sun Mar 26, 9:53 PM 3 min 39° 10° above W 39° above WSW  
Mon Mar 27, 9:05 PM 4 min 66° 10° above WNW 40° above SE  
Tue Mar 28, 8:17 PM 6 min 83° 10° above WNW 12° above ESE  
Tue Mar 28, 9:54 PM 2 min 24° 10° above W 24° above SW  
Wed Mar 29, 9:06 PM 4 min 36° 10° above W 26° above SSE  
Thu Mar 30, 8:18 PM 7 min 50° 10° above W 10° above SE  
Thu Mar 30, 9:56 PM 1 min 13° 10° above WSW 13° above SW  
Fri Mar 31, 9:07 PM 4 min 18° 10° above W 12° above S  
2023-03-17 20:00:00.0,Fri Mar 17, 8:00 PM,3 min,36°,10° above SW,36° above SSE|2023-03-18 19:13:00.0,Sat Mar 18, 7:13 PM,5 min,27°,10° above SSW,17° above E|2023-03-18 20:49:00.0,Sat Mar 18, 8:49 PM,2 min,28°,10° above WSW,28° above WSW|2023-03-19 20:01:00.0,Sun Mar 19, 8:01 PM,4 min,68°,10° above WSW,56° above ESE|2023-03-20 19:14:00.0,Mon Mar 20, 7:14 PM,6 min,51°,10° above SW,14° above E|2023-03-20 20:50:00.0,Mon Mar 20, 8:50 PM,2 min,39°,10° above W,39° above W|2023-03-21 20:03:00.0,Tue Mar 21, 8:03 PM,4 min,83°,10° above W,43° above ENE|2023-03-21 21:40:00.0,Tue Mar 21, 9:40 PM,1 min,14°,10° above W,14° above WNW|2023-03-22 19:15:00.0,Wed Mar 22, 7:15 PM,6 min,84°,10° above WSW,13° above ENE|2023-03-22 20:52:00.0,Wed Mar 22, 8:52 PM,2 min,46°,10° above W,46° above WNW|2023-03-23 20:04:00.0,Thu Mar 23, 8:04 PM,4 min,74°,10° above W,42° above ENE|2023-03-23 21:41:00.0,Thu Mar 23, 9:41 PM,< 1 min,14°,10° above WNW,14° above W|2023-03-24 19:16:00.0,Fri Mar 24, 7:16 PM,6 min,77°,10° above W,12° above E|2023-03-24 20:53:00.0,Fri Mar 24, 8:53 PM,3 min,47°,10° above WNW,47° above W|2023-03-25 20:05:00.0,Sat Mar 25, 8:05 PM,4 min,85°,10° above W,43° above E|2023-03-25 21:42:00.0,Sat Mar 25, 9:42 PM,1 min,13°,10° above W,13° above W|2023-03-26 19:17:00.0,Sun Mar 26, 8:17 PM,6 min,77°,10° above W,12° above E|2023-03-26 20:53:00.0,Sun Mar 26, 9:53 PM,3 min,39°,10° above W,39° above WSW|2023-03-27 20:05:00.0,Mon Mar 27, 9:05 PM,4 min,66°,10° above WNW,40° above SE|2023-03-28 19:17:00.0,Tue Mar 28, 8:17 PM,6 min,83°,10° above WNW,12° above ESE|2023-03-28 20:54:00.0,Tue Mar 28, 9:54 PM,2 min,24°,10° above W,24° above SW|2023-03-29 20:06:00.0,Wed Mar 29, 9:06 PM,4 min,36°,10° above W,26° above SSE|2023-03-30 19:18:00.0,Thu Mar 30, 8:18 PM,7 min,50°,10° above W,10° above SE|2023-03-30 20:56:00.0,Thu Mar 30, 9:56 PM,1 min,13°,10° above WSW,13° above SW|2023-03-31 20:07:00.0,Fri Mar 31, 9:07 PM,4 min,18°,10° above W,12° above S|

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