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Location: Luzern, Switzerland

The following ISS sightings are possible from Friday Sep 24, 2021 through Sunday Oct 10, 2021

Date Visible Max Height Appears Disappears Share Event
Fri Sep 24, 9:01 PM 4 min 36° 10° above WNW 26° above NE  
Fri Sep 24, 10:38 PM < 1 min 12° 10° above WNW 12° above WNW  
Sat Sep 25, 8:13 PM 6 min 38° 10° above WNW 11° above ENE  
Sat Sep 25, 9:51 PM 2 min 29° 10° above WNW 29° above NW  
Sun Sep 26, 9:03 PM 4 min 39° 10° above WNW 36° above NNE  
Mon Sep 27, 8:16 PM 6 min 36° 10° above WNW 14° above ENE  
Mon Sep 27, 9:53 PM 1 min 24° 10° above WNW 24° above WNW  
Tue Sep 28, 9:05 PM 3 min 57° 10° above WNW 57° above N  
Wed Sep 29, 8:18 PM 5 min 45° 10° above WNW 20° above E  
Wed Sep 29, 9:55 PM 1 min 20° 10° above WNW 20° above W  
Thu Sep 30, 9:08 PM 3 min 74° 10° above WNW 74° above SW  
Fri Oct 1, 8:20 PM 5 min 77° 10° above WNW 26° above ESE  
Fri Oct 1, 9:58 PM 1 min 14° 10° above W 14° above W  
Sat Oct 2, 9:10 PM 3 min 32° 10° above WNW 32° above SW  
Sun Oct 3, 8:22 PM 5 min 49° 10° above WNW 23° above SSE  
Mon Oct 4, 7:35 PM 7 min 74° 10° above WNW 10° above ESE  
Mon Oct 4, 9:13 PM 2 min 14° 10° above WSW 13° above SW  
Tue Oct 5, 8:25 PM 5 min 21° 10° above W 10° above S  
Wed Oct 6, 7:37 PM 6 min 32° 10° above WNW 10° above SSE  
Fri Oct 8, 7:40 PM 3 min 13° 10° above WSW 10° above SSW  
2021-09-24 19:01:00.0,Fri Sep 24, 9:01 PM,4 min,36°,10° above WNW,26° above NE|2021-09-24 20:38:00.0,Fri Sep 24, 10:38 PM,< 1 min,12°,10° above WNW,12° above WNW|2021-09-25 18:13:00.0,Sat Sep 25, 8:13 PM,6 min,38°,10° above WNW,11° above ENE|2021-09-25 19:51:00.0,Sat Sep 25, 9:51 PM,2 min,29°,10° above WNW,29° above NW|2021-09-26 19:03:00.0,Sun Sep 26, 9:03 PM,4 min,39°,10° above WNW,36° above NNE|2021-09-27 18:16:00.0,Mon Sep 27, 8:16 PM,6 min,36°,10° above WNW,14° above ENE|2021-09-27 19:53:00.0,Mon Sep 27, 9:53 PM,1 min,24°,10° above WNW,24° above WNW|2021-09-28 19:05:00.0,Tue Sep 28, 9:05 PM,3 min,57°,10° above WNW,57° above N|2021-09-29 18:18:00.0,Wed Sep 29, 8:18 PM,5 min,45°,10° above WNW,20° above E|2021-09-29 19:55:00.0,Wed Sep 29, 9:55 PM,1 min,20°,10° above WNW,20° above W|2021-09-30 19:08:00.0,Thu Sep 30, 9:08 PM,3 min,74°,10° above WNW,74° above SW|2021-10-01 18:20:00.0,Fri Oct 1, 8:20 PM,5 min,77°,10° above WNW,26° above ESE|2021-10-01 19:58:00.0,Fri Oct 1, 9:58 PM,1 min,14°,10° above W,14° above W|2021-10-02 19:10:00.0,Sat Oct 2, 9:10 PM,3 min,32°,10° above WNW,32° above SW|2021-10-03 18:22:00.0,Sun Oct 3, 8:22 PM,5 min,49°,10° above WNW,23° above SSE|2021-10-04 17:35:00.0,Mon Oct 4, 7:35 PM,7 min,74°,10° above WNW,10° above ESE|2021-10-04 19:13:00.0,Mon Oct 4, 9:13 PM,2 min,14°,10° above WSW,13° above SW|2021-10-05 18:25:00.0,Tue Oct 5, 8:25 PM,5 min,21°,10° above W,10° above S|2021-10-06 17:37:00.0,Wed Oct 6, 7:37 PM,6 min,32°,10° above WNW,10° above SSE|2021-10-08 17:40:00.0,Fri Oct 8, 7:40 PM,3 min,13°,10° above WSW,10° 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.