Spot The Station

Sighting Location

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Location: Concord, California, United States

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The following ISS sightings are possible from Friday Apr 18, 2025 through Saturday May 3, 2025

Date	Visible	Max Height	Appears	Disappears
Sat Apr 19, 5:34 AM	6 min	87°	16° above SW	10° above NE
Sun Apr 20, 4:48 AM	4 min	45°	42° above SSE	10° above ENE
Mon Apr 21, 4:01 AM	2 min	19°	19° above E	10° above ENE
Mon Apr 21, 5:35 AM	5 min	32°	15° above W	10° above NE
Tue Apr 22, 4:48 AM	4 min	54°	48° above WNW	10° above NE
Wed Apr 23, 4:02 AM	2 min	30°	30° above NE	10° above NE
Wed Apr 23, 5:35 AM	4 min	16°	10° above WNW	10° above NNE
Thu Apr 24, 3:15 AM	< 1 min	11°	11° above ENE	10° above ENE
Thu Apr 24, 4:49 AM	4 min	23°	21° above NW	10° above NNE
Fri Apr 25, 4:03 AM	2 min	27°	27° above N	10° above NE
Fri Apr 25, 5:39 AM	1 min	10°	10° above NNW	10° above N
Sat Apr 26, 3:17 AM	1 min	14°	14° above NE	10° above NE
Sat Apr 26, 4:50 AM	3 min	13°	10° above NW	10° above N
Sun Apr 27, 4:04 AM	2 min	17°	17° above NNW	10° above NNE
Mon Apr 28, 3:18 AM	1 min	14°	14° above NNE	10° above NNE
Tue Apr 29, 4:05 AM	1 min	10°	10° above NNW	10° above N
Wed Apr 30, 3:18 AM	1 min	12°	12° above N	10° above N

{ts '2025-04-19 12:34:00'},Sat Apr 19, 5:34 AM,6 min,87°,16° above SW,10° above NE|{ts '2025-04-20 11:48:00'},Sun Apr 20, 4:48 AM,4 min,45°,42° above SSE,10° above ENE|{ts '2025-04-21 11:01:00'},Mon Apr 21, 4:01 AM,2 min,19°,19° above E,10° above ENE|{ts '2025-04-21 12:35:00'},Mon Apr 21, 5:35 AM,5 min,32°,15° above W,10° above NE|{ts '2025-04-22 11:48:00'},Tue Apr 22, 4:48 AM,4 min,54°,48° above WNW,10° above NE|{ts '2025-04-23 11:02:00'},Wed Apr 23, 4:02 AM,2 min,30°,30° above NE,10° above NE|{ts '2025-04-23 12:35:00'},Wed Apr 23, 5:35 AM,4 min,16°,10° above WNW,10° above NNE|{ts '2025-04-24 10:15:00'},Thu Apr 24, 3:15 AM,< 1 min,11°,11° above ENE,10° above ENE|{ts '2025-04-24 11:49:00'},Thu Apr 24, 4:49 AM,4 min,23°,21° above NW,10° above NNE|{ts '2025-04-25 11:03:00'},Fri Apr 25, 4:03 AM,2 min,27°,27° above N,10° above NE|{ts '2025-04-25 12:39:00'},Fri Apr 25, 5:39 AM,1 min,10°,10° above NNW,10° above N|{ts '2025-04-26 10:17:00'},Sat Apr 26, 3:17 AM,1 min,14°,14° above NE,10° above NE|{ts '2025-04-26 11:50:00'},Sat Apr 26, 4:50 AM,3 min,13°,10° above NW,10° above N|{ts '2025-04-27 11:04:00'},Sun Apr 27, 4:04 AM,2 min,17°,17° above NNW,10° above NNE|{ts '2025-04-28 10:18:00'},Mon Apr 28, 3:18 AM,1 min,14°,14° above NNE,10° above NNE|{ts '2025-04-29 11:05:00'},Tue Apr 29, 4:05 AM,1 min,10°,10° above NNW,10° above N|{ts '2025-04-30 10:18:00'},Wed Apr 30, 3:18 AM,1 min,12°,12° above N,10° above N|

What am I looking for in the sky?

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

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.