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Location: Spearfish, South Dakota, United States

The following ISS sightings are possible from Monday Feb 18, 2019 through Tuesday Mar 5, 2019

Date Visible Max Height Appears Disappears Share Event
Thu Feb 21, 6:23 AM < 1 min 11° 11° above S 11° above S  
Fri Feb 22, 5:33 AM 1 min 12° 10° above SSE 12° above SE  
Sat Feb 23, 6:16 AM 4 min 48° 10° above SW 41° above ESE  
Sun Feb 24, 5:25 AM 3 min 27° 10° above SSW 25° above ESE  
Mon Feb 25, 4:35 AM 2 min 15° 13° above SSE 14° above ESE  
Mon Feb 25, 6:09 AM 6 min 75° 10° above WSW 13° above ENE  
Tue Feb 26, 5:19 AM 3 min 64° 23° above SW 28° above ENE  
Wed Feb 27, 4:31 AM 1 min 34° 34° above ESE 23° above E  
Wed Feb 27, 6:04 AM 6 min 40° 10° above W 11° above NE  
Thu Feb 28, 3:42 AM < 1 min 11° 11° above E 11° above E  
Thu Feb 28, 5:15 AM 4 min 59° 33° above W 16° above NE  
Fri Mar 1, 4:26 AM 1 min 38° 38° above ENE 20° above ENE  
Fri Mar 1, 5:59 AM 5 min 27° 11° above WNW 11° above NE  
Sat Mar 2, 5:10 AM 3 min 34° 30° above NW 13° above NE  
Sun Mar 3, 4:21 AM 1 min 31° 31° above NNE 15° above NE  
Sun Mar 3, 5:54 AM 5 min 22° 11° above WNW 11° above NE  
Mon Mar 4, 5:05 AM 3 min 25° 22° above NW 12° above NE  
Tue Mar 5, 4:16 AM 1 min 22° 22° above NNE 11° above NE  
Tue Mar 5, 5:49 AM 4 min 23° 11° above NW 15° above NE  

The following CYGNUS sightings are possible from Monday Feb 18, 2019 through Tuesday Mar 5, 2019

Date Visible Max Height Appears Disappears Share Event
Sat Feb 23, 5:22 AM 2 min 13° 10° above SSE 13° above SE  
Sun Feb 24, 5:32 AM 3 min 30° 11° above SSW 28° above ESE  
2019-02-21 13:23:00.0,Thu Feb 21, 6:23 AM,< 1 min,11°,11° above S,11° above S|2019-02-22 12:33:00.0,Fri Feb 22, 5:33 AM,1 min,12°,10° above SSE,12° above SE|2019-02-23 13:16:00.0,Sat Feb 23, 6:16 AM,4 min,48°,10° above SW,41° above ESE|2019-02-24 12:25:00.0,Sun Feb 24, 5:25 AM,3 min,27°,10° above SSW,25° above ESE|2019-02-25 11:35:00.0,Mon Feb 25, 4:35 AM,2 min,15°,13° above SSE,14° above ESE|2019-02-25 13:09:00.0,Mon Feb 25, 6:09 AM,6 min,75°,10° above WSW,13° above ENE|2019-02-26 12:19:00.0,Tue Feb 26, 5:19 AM,3 min,64°,23° above SW,28° above ENE|2019-02-27 11:31:00.0,Wed Feb 27, 4:31 AM,1 min,34°,34° above ESE,23° above E|2019-02-27 13:04:00.0,Wed Feb 27, 6:04 AM,6 min,40°,10° above W,11° above NE|2019-02-28 10:42:00.0,Thu Feb 28, 3:42 AM,< 1 min,11°,11° above E,11° above E|2019-02-28 12:15:00.0,Thu Feb 28, 5:15 AM,4 min,59°,33° above W,16° above NE|2019-03-01 11:26:00.0,Fri Mar 1, 4:26 AM,1 min,38°,38° above ENE,20° above ENE|2019-03-01 12:59:00.0,Fri Mar 1, 5:59 AM,5 min,27°,11° above WNW,11° above NE|2019-03-02 12:10:00.0,Sat Mar 2, 5:10 AM,3 min,34°,30° above NW,13° above NE|2019-03-03 11:21:00.0,Sun Mar 3, 4:21 AM,1 min,31°,31° above NNE,15° above NE|2019-03-03 12:54:00.0,Sun Mar 3, 5:54 AM,5 min,22°,11° above WNW,11° above NE|2019-03-04 12:05:00.0,Mon Mar 4, 5:05 AM,3 min,25°,22° above NW,12° above NE|2019-03-05 11:16:00.0,Tue Mar 5, 4:16 AM,1 min,22°,22° above NNE,11° above NE|2019-03-05 12:49:00.0,Tue Mar 5, 5:49 AM,4 min,23°,11° above NW,15° above NE|

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