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Location: Portsmouth, England, United Kingdom

The following ISS sightings are possible from Tuesday Mar 18, 2025 through Wednesday Apr 2, 2025

Date Visible Max Height Appears Disappears Share Event
Mon Mar 17, 8:01 PM 4 min 87° 10° above W 51° above ENE  
Mon Mar 17, 9:38 PM < 1 min 12° 10° above W 12° above W  
Tue Mar 18, 7:13 PM 6 min 79° 10° above WSW 15° above ENE  
Tue Mar 18, 8:50 PM 2 min 39° 10° above W 39° above WNW  
Wed Mar 19, 8:02 PM 4 min 75° 10° above W 42° above ENE  
Wed Mar 19, 9:39 PM < 1 min 12° 10° above WNW 12° above WNW  
Thu Mar 20, 7:14 PM 6 min 79° 10° above W 13° above E  
Thu Mar 20, 8:51 PM 2 min 39° 10° above WNW 39° above W  
Fri Mar 21, 8:03 PM 4 min 82° 10° above W 42° above E  
Fri Mar 21, 9:39 PM < 1 min 12° 10° above W 12° above W  
Sat Mar 22, 7:14 PM 6 min 76° 10° above W 14° above E  
Sat Mar 22, 8:51 PM 2 min 36° 10° above W 36° above W  
Sun Mar 23, 8:03 PM 4 min 72° 10° above WNW 41° above SE  
Mon Mar 24, 7:15 PM 6 min 88° 10° above WNW 13° above ESE  
Mon Mar 24, 8:51 PM 2 min 26° 10° above W 26° above WSW  
Tue Mar 25, 8:03 PM 4 min 41° 10° above W 28° above SSE  
Wed Mar 26, 7:14 PM 7 min 56° 10° above WNW 10° above ESE  
Wed Mar 26, 8:52 PM 2 min 15° 10° above WSW 15° above SW  
Thu Mar 27, 8:03 PM 4 min 21° 10° above W 15° above S  
Fri Mar 28, 7:14 PM 6 min 30° 10° above W 10° above SSE  
Sat Mar 29, 8:04 PM 1 min 10° 10° above SW 10° above SW  
Sun Mar 30, 8:14 PM 4 min 16° 10° above WSW 10° above S  

The following Crew-9 sightings are possible from Tuesday Mar 18, 2025 through Wednesday Apr 2, 2025

Date Visible Max Height Appears Disappears Share Event
Tue Mar 18, 6:57 PM 4 min 49° 10° above WSW 11° above E  
{ts '2025-03-17 20:01:00'},Mon Mar 17, 8:01 PM,4 min,87°,10° above W,51° above ENE|{ts '2025-03-17 21:38:00'},Mon Mar 17, 9:38 PM,< 1 min,12°,10° above W,12° above W|{ts '2025-03-18 19:13:00'},Tue Mar 18, 7:13 PM,6 min,79°,10° above WSW,15° above ENE|{ts '2025-03-18 20:50:00'},Tue Mar 18, 8:50 PM,2 min,39°,10° above W,39° above WNW|{ts '2025-03-19 20:02:00'},Wed Mar 19, 8:02 PM,4 min,75°,10° above W,42° above ENE|{ts '2025-03-19 21:39:00'},Wed Mar 19, 9:39 PM,< 1 min,12°,10° above WNW,12° above WNW|{ts '2025-03-20 19:14:00'},Thu Mar 20, 7:14 PM,6 min,79°,10° above W,13° above E|{ts '2025-03-20 20:51:00'},Thu Mar 20, 8:51 PM,2 min,39°,10° above WNW,39° above W|{ts '2025-03-21 20:03:00'},Fri Mar 21, 8:03 PM,4 min,82°,10° above W,42° above E|{ts '2025-03-21 21:39:00'},Fri Mar 21, 9:39 PM,< 1 min,12°,10° above W,12° above W|{ts '2025-03-22 19:14:00'},Sat Mar 22, 7:14 PM,6 min,76°,10° above W,14° above E|{ts '2025-03-22 20:51:00'},Sat Mar 22, 8:51 PM,2 min,36°,10° above W,36° above W|{ts '2025-03-23 20:03:00'},Sun Mar 23, 8:03 PM,4 min,72°,10° above WNW,41° above SE|{ts '2025-03-24 19:15:00'},Mon Mar 24, 7:15 PM,6 min,88°,10° above WNW,13° above ESE|{ts '2025-03-24 20:51:00'},Mon Mar 24, 8:51 PM,2 min,26°,10° above W,26° above WSW|{ts '2025-03-25 20:03:00'},Tue Mar 25, 8:03 PM,4 min,41°,10° above W,28° above SSE|{ts '2025-03-26 19:14:00'},Wed Mar 26, 7:14 PM,7 min,56°,10° above WNW,10° above ESE|{ts '2025-03-26 20:52:00'},Wed Mar 26, 8:52 PM,2 min,15°,10° above WSW,15° above SW|{ts '2025-03-27 20:03:00'},Thu Mar 27, 8:03 PM,4 min,21°,10° above W,15° above S|{ts '2025-03-28 19:14:00'},Fri Mar 28, 7:14 PM,6 min,30°,10° above W,10° above SSE|{ts '2025-03-29 20:04:00'},Sat Mar 29, 8:04 PM,1 min,10°,10° above SW,10° above SW|{ts '2025-03-30 19:14:00'},Sun Mar 30, 8:14 PM,4 min,16°,10° above WSW,10° 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