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Location: Lisbon, Portugal

The following ISS sightings are possible from Wednesday Jan 15, 2020 through Friday Jan 31, 2020

Date Visible Max Height Appears Disappears Share Event
Fri Jan 17, 7:43 PM < 1 min 11° 11° above S 11° above S  
Sat Jan 18, 6:56 PM 1 min 14° 10° above SSE 14° above SE  
Sun Jan 19, 7:43 PM 2 min 35° 10° above SW 35° above SW  
Mon Jan 20, 6:55 PM 4 min 46° 11° above SSW 34° above E  
Tue Jan 21, 6:08 PM 5 min 25° 11° above S 10° above ENE  
Tue Jan 21, 7:45 PM 1 min 31° 22° above WNW 31° above NW  
Wed Jan 22, 6:58 PM 3 min 54° 31° above W 24° above NNE  
Thu Jan 23, 6:10 PM 4 min 83° 35° above SW 12° above NE  
Thu Jan 23, 7:46 PM 2 min 17° 11° above WNW 17° above NNW  
Fri Jan 24, 6:59 PM 4 min 23° 16° above WNW 14° above NNE  
Sat Jan 25, 6:12 PM 4 min 33° 25° above WNW 11° above NE  
Sat Jan 25, 7:50 PM < 1 min 10° 10° above NNW 10° above NNW  
Sun Jan 26, 7:01 PM 3 min 13° 10° above NW 10° above NNE  
Mon Jan 27, 6:13 PM 4 min 17° 12° above WNW 10° above NNE  
Wed Jan 29, 6:16 PM 2 min 11° 10° above NNW 10° above N  
2020-01-17 19:43:00.0,Fri Jan 17, 7:43 PM,< 1 min,11°,11° above S,11° above S|2020-01-18 18:56:00.0,Sat Jan 18, 6:56 PM,1 min,14°,10° above SSE,14° above SE|2020-01-19 19:43:00.0,Sun Jan 19, 7:43 PM,2 min,35°,10° above SW,35° above SW|2020-01-20 18:55:00.0,Mon Jan 20, 6:55 PM,4 min,46°,11° above SSW,34° above E|2020-01-21 18:08:00.0,Tue Jan 21, 6:08 PM,5 min,25°,11° above S,10° above ENE|2020-01-21 19:45:00.0,Tue Jan 21, 7:45 PM,1 min,31°,22° above WNW,31° above NW|2020-01-22 18:58:00.0,Wed Jan 22, 6:58 PM,3 min,54°,31° above W,24° above NNE|2020-01-23 18:10:00.0,Thu Jan 23, 6:10 PM,4 min,83°,35° above SW,12° above NE|2020-01-23 19:46:00.0,Thu Jan 23, 7:46 PM,2 min,17°,11° above WNW,17° above NNW|2020-01-24 18:59:00.0,Fri Jan 24, 6:59 PM,4 min,23°,16° above WNW,14° above NNE|2020-01-25 18:12:00.0,Sat Jan 25, 6:12 PM,4 min,33°,25° above WNW,11° above NE|2020-01-25 19:50:00.0,Sat Jan 25, 7:50 PM,< 1 min,10°,10° above NNW,10° above NNW|2020-01-26 19:01:00.0,Sun Jan 26, 7:01 PM,3 min,13°,10° above NW,10° above NNE|2020-01-27 18:13:00.0,Mon Jan 27, 6:13 PM,4 min,17°,12° above WNW,10° above NNE|2020-01-29 18:16:00.0,Wed Jan 29, 6:16 PM,2 min,11°,10° above NNW,10° above N|

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.