Spot The Station

Sighting Location

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Location: Lisbon, Portugal

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The following ISS sightings are possible from Wednesday Sep 20, 2023 through Thursday Oct 5, 2023

Date	Visible	Max Height	Appears	Disappears
Wed Sep 20, 8:35 PM	3 min	13°	10° above NW	10° above NNE
Sat Sep 23, 9:28 PM	1 min	10°	10° above N	10° above NNE
Mon Sep 25, 9:27 PM	1 min	14°	10° above NNW	14° above N
Tue Sep 26, 8:40 PM	3 min	12°	10° above N	10° above NE
Wed Sep 27, 9:27 PM	1 min	19°	10° above NNW	19° above N
Thu Sep 28, 8:40 PM	3 min	18°	10° above NNW	17° above NE
Fri Sep 29, 7:52 PM	4 min	14°	10° above NNW	10° above NE
Fri Sep 29, 9:28 PM	2 min	28°	10° above NW	28° above NW
Sat Sep 30, 8:40 PM	4 min	37°	10° above NW	35° above NE
Sun Oct 1, 7:52 PM	6 min	25°	10° above NNW	10° above E
Sun Oct 1, 9:29 PM	2 min	28°	10° above WNW	28° above W
Mon Oct 2, 8:41 PM	4 min	75°	10° above NW	42° above SE
Tue Oct 3, 7:53 PM	7 min	61°	10° above NW	10° above ESE
Tue Oct 3, 9:31 PM	1 min	13°	10° above W	13° above SW
Wed Oct 4, 8:42 PM	5 min	23°	10° above WNW	12° above S

{ts '2023-09-20 19:35:00'},Wed Sep 20, 8:35 PM,3 min,13°,10° above NW,10° above NNE|{ts '2023-09-23 20:28:00'},Sat Sep 23, 9:28 PM,1 min,10°,10° above N,10° above NNE|{ts '2023-09-25 20:27:00'},Mon Sep 25, 9:27 PM,1 min,14°,10° above NNW,14° above N|{ts '2023-09-26 19:40:00'},Tue Sep 26, 8:40 PM,3 min,12°,10° above N,10° above NE|{ts '2023-09-27 20:27:00'},Wed Sep 27, 9:27 PM,1 min,19°,10° above NNW,19° above N|{ts '2023-09-28 19:40:00'},Thu Sep 28, 8:40 PM,3 min,18°,10° above NNW,17° above NE|{ts '2023-09-29 18:52:00'},Fri Sep 29, 7:52 PM,4 min,14°,10° above NNW,10° above NE|{ts '2023-09-29 20:28:00'},Fri Sep 29, 9:28 PM,2 min,28°,10° above NW,28° above NW|{ts '2023-09-30 19:40:00'},Sat Sep 30, 8:40 PM,4 min,37°,10° above NW,35° above NE|{ts '2023-10-01 18:52:00'},Sun Oct 1, 7:52 PM,6 min,25°,10° above NNW,10° above E|{ts '2023-10-01 20:29:00'},Sun Oct 1, 9:29 PM,2 min,28°,10° above WNW,28° above W|{ts '2023-10-02 19:41:00'},Mon Oct 2, 8:41 PM,4 min,75°,10° above NW,42° above SE|{ts '2023-10-03 18:53:00'},Tue Oct 3, 7:53 PM,7 min,61°,10° above NW,10° above ESE|{ts '2023-10-03 20:31:00'},Tue Oct 3, 9:31 PM,1 min,13°,10° above W,13° above SW|{ts '2023-10-04 19:42:00'},Wed Oct 4, 8:42 PM,5 min,23°,10° above WNW,12° above S|

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.