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Location: Pasadena, California, United States

The following ISS sightings are possible from Friday Apr 19, 2024 through Saturday May 4, 2024

Date Visible Max Height Appears Disappears Share Event
Fri Apr 19, 5:02 AM 5 min 38° 20° above S 10° above ENE  
Sat Apr 20, 4:16 AM 2 min 19° 19° above ESE 10° above E  
Sun Apr 21, 5:02 AM 5 min 57° 32° above WSW 10° above NE  
Mon Apr 22, 4:15 AM 3 min 48° 48° above ENE 10° above NE  
Tue Apr 23, 3:28 AM < 1 min 12° 12° above ENE 10° above ENE  
Tue Apr 23, 5:01 AM 4 min 21° 18° above WNW 10° above NNE  
Wed Apr 24, 4:14 AM 2 min 30° 30° above N 10° above NNE  
Thu Apr 25, 3:27 AM 1 min 14° 14° above NE 10° above NE  
Thu Apr 25, 5:01 AM 1 min 10° 10° above NNW 10° above NNW  
Fri Apr 26, 4:12 AM 2 min 15° 15° above NNW 10° above N  
Sat Apr 27, 3:25 AM < 1 min 13° 13° above NNE 10° above NNE  
{ts '2024-04-19 12:02:00'},Fri Apr 19, 5:02 AM,5 min,38°,20° above S,10° above ENE|{ts '2024-04-20 11:16:00'},Sat Apr 20, 4:16 AM,2 min,19°,19° above ESE,10° above E|{ts '2024-04-21 12:02:00'},Sun Apr 21, 5:02 AM,5 min,57°,32° above WSW,10° above NE|{ts '2024-04-22 11:15:00'},Mon Apr 22, 4:15 AM,3 min,48°,48° above ENE,10° above NE|{ts '2024-04-23 10:28:00'},Tue Apr 23, 3:28 AM,< 1 min,12°,12° above ENE,10° above ENE|{ts '2024-04-23 12:01:00'},Tue Apr 23, 5:01 AM,4 min,21°,18° above WNW,10° above NNE|{ts '2024-04-24 11:14:00'},Wed Apr 24, 4:14 AM,2 min,30°,30° above N,10° above NNE|{ts '2024-04-25 10:27:00'},Thu Apr 25, 3:27 AM,1 min,14°,14° above NE,10° above NE|{ts '2024-04-25 12:01:00'},Thu Apr 25, 5:01 AM,1 min,10°,10° above NNW,10° above NNW|{ts '2024-04-26 11:12:00'},Fri Apr 26, 4:12 AM,2 min,15°,15° above NNW,10° above N|{ts '2024-04-27 10:25:00'},Sat Apr 27, 3:25 AM,< 1 min,13°,13° above NNE,10° above NNE|

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.