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Location: Chicago, Illinois, United States

The following ISS sightings are possible from Friday May 25, 2018 through Saturday Jun 9, 2018

Date Visible Max Height Appears Disappears Share Event
Fri May 25, 9:13 PM 3 min 30° 30° above NNW 11° above NE  
Fri May 25, 10:50 PM 2 min 14° 14° above N 10° above NNE  
Sat May 26, 00:25 AM 2 min 20° 10° above NNW 20° above NNE  
Sat May 26, 9:57 PM 2 min 16° 16° above N 10° above NNE  
Sat May 26, 11:34 PM 2 min 16° 16° above N 11° above NE  
Sun May 27, 1:09 AM < 1 min 12° 10° above NW 12° above NW  
Sun May 27, 9:05 PM 2 min 19° 19° above N 11° above NNE  
Sun May 27, 10:42 PM 2 min 15° 15° above N 10° above NE  
Mon May 28, 00:17 AM 2 min 22° 10° above NW 22° above NNW  
Mon May 28, 9:50 PM 2 min 14° 14° above N 10° above NE  
Mon May 28, 11:26 PM 1 min 22° 20° above N 21° above NE  
Tue May 29, 8:57 PM 2 min 15° 15° above NNW 11° above NNE  
Tue May 29, 10:34 PM 3 min 17° 17° above N 11° above NE  
Wed May 30, 00:08 AM 1 min 22° 10° above NW 22° above NW  
Wed May 30, 9:42 PM 2 min 15° 15° above N 10° above NE  
Wed May 30, 11:18 PM 1 min 33° 24° above NNW 33° above N  
Thu May 31, 8:49 PM 2 min 14° 14° above N 10° above NE  
Thu May 31, 10:26 PM 2 min 24° 21° above N 17° above ENE  
Fri Jun 1, 00:01 AM < 1 min 15° 10° above WNW 15° above WNW  
Fri Jun 1, 9:34 PM 3 min 19° 16° above N 10° above ENE  
Fri Jun 1, 11:09 PM 2 min 44° 15° above NW 44° above NW  
Sat Jun 2, 10:18 PM 2 min 41° 30° above NNW 31° above ENE  
Sat Jun 2, 11:53 PM < 1 min 11° 11° above W 11° above W  
Sun Jun 3, 9:26 PM 4 min 27° 23° above N 10° above E  
Sun Jun 3, 11:00 PM 2 min 36° 10° above WNW 36° above W  
Mon Jun 4, 10:10 PM 2 min 87° 28° above NW 48° above SE  
Tue Jun 5, 9:18 PM 4 min 49° 32° above NNW 12° above ESE  
Tue Jun 5, 10:53 PM 1 min 17° 10° above W 17° above WSW  
Wed Jun 6, 10:01 PM 3 min 36° 14° above WNW 29° above S  
Thu Jun 7, 9:10 PM 4 min 72° 35° above WNW 13° above SE  
Fri Jun 8, 9:53 PM 3 min 15° 11° above W 12° above SSW  
2018-05-26 02:13:00.0,Fri May 25, 9:13 PM,3 min,30°,30° above NNW,11° above NE|2018-05-26 03:50:00.0,Fri May 25, 10:50 PM,2 min,14°,14° above N,10° above NNE|2018-05-26 05:25:00.0,Sat May 26, 00:25 AM,2 min,20°,10° above NNW,20° above NNE|2018-05-27 02:57:00.0,Sat May 26, 9:57 PM,2 min,16°,16° above N,10° above NNE|2018-05-27 04:34:00.0,Sat May 26, 11:34 PM,2 min,16°,16° above N,11° above NE|2018-05-27 06:09:00.0,Sun May 27, 1:09 AM,< 1 min,12°,10° above NW,12° above NW|2018-05-28 02:05:00.0,Sun May 27, 9:05 PM,2 min,19°,19° above N,11° above NNE|2018-05-28 03:42:00.0,Sun May 27, 10:42 PM,2 min,15°,15° above N,10° above NE|2018-05-28 05:17:00.0,Mon May 28, 00:17 AM,2 min,22°,10° above NW,22° above NNW|2018-05-29 02:50:00.0,Mon May 28, 9:50 PM,2 min,14°,14° above N,10° above NE|2018-05-29 04:26:00.0,Mon May 28, 11:26 PM,1 min,22°,20° above N,21° above NE|2018-05-30 01:57:00.0,Tue May 29, 8:57 PM,2 min,15°,15° above NNW,11° above NNE|2018-05-30 03:34:00.0,Tue May 29, 10:34 PM,3 min,17°,17° above N,11° above NE|2018-05-30 05:08:00.0,Wed May 30, 00:08 AM,1 min,22°,10° above NW,22° above NW|2018-05-31 02:42:00.0,Wed May 30, 9:42 PM,2 min,15°,15° above N,10° above NE|2018-05-31 04:18:00.0,Wed May 30, 11:18 PM,1 min,33°,24° above NNW,33° above N|2018-06-01 01:49:00.0,Thu May 31, 8:49 PM,2 min,14°,14° above N,10° above NE|2018-06-01 03:26:00.0,Thu May 31, 10:26 PM,2 min,24°,21° above N,17° above ENE|2018-06-01 05:01:00.0,Fri Jun 1, 00:01 AM,< 1 min,15°,10° above WNW,15° above WNW|2018-06-02 02:34:00.0,Fri Jun 1, 9:34 PM,3 min,19°,16° above N,10° above ENE|2018-06-02 04:09:00.0,Fri Jun 1, 11:09 PM,2 min,44°,15° above NW,44° above NW|2018-06-03 03:18:00.0,Sat Jun 2, 10:18 PM,2 min,41°,30° above NNW,31° above ENE|2018-06-03 04:53:00.0,Sat Jun 2, 11:53 PM,< 1 min,11°,11° above W,11° above W|2018-06-04 02:26:00.0,Sun Jun 3, 9:26 PM,4 min,27°,23° above N,10° above E|2018-06-04 04:00:00.0,Sun Jun 3, 11:00 PM,2 min,36°,10° above WNW,36° above W|2018-06-05 03:10:00.0,Mon Jun 4, 10:10 PM,2 min,87°,28° above NW,48° above SE|2018-06-06 02:18:00.0,Tue Jun 5, 9:18 PM,4 min,49°,32° above NNW,12° above ESE|2018-06-06 03:53:00.0,Tue Jun 5, 10:53 PM,1 min,17°,10° above W,17° above WSW|2018-06-07 03:01:00.0,Wed Jun 6, 10:01 PM,3 min,36°,14° above WNW,29° above S|2018-06-08 02:10:00.0,Thu Jun 7, 9:10 PM,4 min,72°,35° above WNW,13° above SE|2018-06-09 02:53:00.0,Fri Jun 8, 9:53 PM,3 min,15°,11° above W,12° above SSW|

Last Updated:

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