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Location: Gary, Indiana, United States

The following ISS sightings are possible from Monday Dec 10, 2018 through Wednesday Dec 26, 2018

Date Visible Max Height Appears Disappears Share Event
Mon Dec 10, 4:43 PM 3 min 23° 23° above NNE 10° above ENE  
Mon Dec 10, 6:16 PM 3 min 52° 10° above WNW 52° above W  
Tue Dec 11, 5:24 PM 6 min 69° 10° above NW 15° above ESE  
Tue Dec 11, 7:03 PM < 1 min 12° 12° above WSW 12° above WSW  
Wed Dec 12, 6:11 PM 3 min 24° 23° above WSW 11° above S  
Thu Dec 13, 5:16 PM 6 min 47° 10° above WNW 11° above SSE  
Sat Dec 15, 5:12 PM 2 min 18° 18° above SSW 10° above S  
Sat Dec 22, 6:12 AM 2 min 18° 10° above S 18° above SSE  
Mon Dec 24, 6:04 AM 6 min 46° 10° above SSW 11° above ENE  
Tue Dec 25, 5:12 AM 3 min 24° 11° above S 23° above ESE  
Tue Dec 25, 6:48 AM 2 min 29° 10° above W 29° above WNW  
2018-12-10 22:43:00.0,Mon Dec 10, 4:43 PM,3 min,23°,23° above NNE,10° above ENE|2018-12-11 00:16:00.0,Mon Dec 10, 6:16 PM,3 min,52°,10° above WNW,52° above W|2018-12-11 23:24:00.0,Tue Dec 11, 5:24 PM,6 min,69°,10° above NW,15° above ESE|2018-12-12 01:03:00.0,Tue Dec 11, 7:03 PM,< 1 min,12°,12° above WSW,12° above WSW|2018-12-13 00:11:00.0,Wed Dec 12, 6:11 PM,3 min,24°,23° above WSW,11° above S|2018-12-13 23:16:00.0,Thu Dec 13, 5:16 PM,6 min,47°,10° above WNW,11° above SSE|2018-12-15 23:12:00.0,Sat Dec 15, 5:12 PM,2 min,18°,18° above SSW,10° above S|2018-12-22 12:12:00.0,Sat Dec 22, 6:12 AM,2 min,18°,10° above S,18° above SSE|2018-12-24 12:04:00.0,Mon Dec 24, 6:04 AM,6 min,46°,10° above SSW,11° above ENE|2018-12-25 11:12:00.0,Tue Dec 25, 5:12 AM,3 min,24°,11° above S,23° above ESE|2018-12-25 12:48:00.0,Tue Dec 25, 6:48 AM,2 min,29°,10° above W,29° above WNW|

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