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Location: Chelmsford, England, United Kingdom

The following ISS sightings are possible from Wednesday Sep 19, 2018 through Thursday Oct 4, 2018

Date Visible Max Height Appears Disappears Share Event
Sat Sep 22, 9:01 PM < 1 min 11° 11° above SSW 11° above SSW  
Sun Sep 23, 8:10 PM 2 min 18° 10° above S 18° above SE  
Sun Sep 23, 9:45 PM < 1 min 10° 10° above WSW 10° above WSW  
Mon Sep 24, 7:19 PM 2 min 12° 10° above SSE 10° above ESE  
Mon Sep 24, 8:53 PM 2 min 35° 10° above SW 35° above SSW  
Tue Sep 25, 8:02 PM 4 min 31° 12° above SSW 22° above ESE  
Tue Sep 25, 9:37 PM 1 min 18° 10° above WSW 18° above WSW  
Wed Sep 26, 7:13 PM 2 min 21° 21° above SE 11° above E  
Wed Sep 26, 8:45 PM 3 min 64° 10° above WSW 64° above SSW  
Thu Sep 27, 7:54 PM 5 min 50° 10° above SW 22° above E  
Thu Sep 27, 9:30 PM 1 min 22° 10° above W 22° above W  
Fri Sep 28, 7:08 PM < 1 min 13° 13° above E 10° above E  
Fri Sep 28, 8:39 PM 3 min 85° 15° above W 83° above SE  
Sat Sep 29, 7:48 PM 4 min 73° 22° above WSW 20° above E  
Sat Sep 29, 9:23 PM 1 min 28° 12° above W 28° above W  
Sun Sep 30, 8:33 PM 2 min 89° 28° above W 86° above ENE  
Mon Oct 1, 7:41 PM 3 min 88° 34° above W 21° above E  
Mon Oct 1, 9:16 PM 1 min 27° 15° above W 27° above W  
Tue Oct 2, 8:25 PM 2 min 81° 27° above W 65° above ESE  
Wed Oct 3, 7:34 PM 3 min 89° 34° above W 21° above E  
Wed Oct 3, 9:09 PM 1 min 25° 14° above W 25° above W  
2018-09-22 20:01:00.0,Sat Sep 22, 9:01 PM,< 1 min,11°,11° above SSW,11° above SSW|2018-09-23 19:10:00.0,Sun Sep 23, 8:10 PM,2 min,18°,10° above S,18° above SE|2018-09-23 20:45:00.0,Sun Sep 23, 9:45 PM,< 1 min,10°,10° above WSW,10° above WSW|2018-09-24 18:19:00.0,Mon Sep 24, 7:19 PM,2 min,12°,10° above SSE,10° above ESE|2018-09-24 19:53:00.0,Mon Sep 24, 8:53 PM,2 min,35°,10° above SW,35° above SSW|2018-09-25 19:02:00.0,Tue Sep 25, 8:02 PM,4 min,31°,12° above SSW,22° above ESE|2018-09-25 20:37:00.0,Tue Sep 25, 9:37 PM,1 min,18°,10° above WSW,18° above WSW|2018-09-26 18:13:00.0,Wed Sep 26, 7:13 PM,2 min,21°,21° above SE,11° above E|2018-09-26 19:45:00.0,Wed Sep 26, 8:45 PM,3 min,64°,10° above WSW,64° above SSW|2018-09-27 18:54:00.0,Thu Sep 27, 7:54 PM,5 min,50°,10° above SW,22° above E|2018-09-27 20:30:00.0,Thu Sep 27, 9:30 PM,1 min,22°,10° above W,22° above W|2018-09-28 18:08:00.0,Fri Sep 28, 7:08 PM,< 1 min,13°,13° above E,10° above E|2018-09-28 19:39:00.0,Fri Sep 28, 8:39 PM,3 min,85°,15° above W,83° above SE|2018-09-29 18:48:00.0,Sat Sep 29, 7:48 PM,4 min,73°,22° above WSW,20° above E|2018-09-29 20:23:00.0,Sat Sep 29, 9:23 PM,1 min,28°,12° above W,28° above W|2018-09-30 19:33:00.0,Sun Sep 30, 8:33 PM,2 min,89°,28° above W,86° above ENE|2018-10-01 18:41:00.0,Mon Oct 1, 7:41 PM,3 min,88°,34° above W,21° above E|2018-10-01 20:16:00.0,Mon Oct 1, 9:16 PM,1 min,27°,15° above W,27° above W|2018-10-02 19:25:00.0,Tue Oct 2, 8:25 PM,2 min,81°,27° above W,65° above ESE|2018-10-03 18:34:00.0,Wed Oct 3, 7:34 PM,3 min,89°,34° above W,21° above E|2018-10-03 20:09:00.0,Wed Oct 3, 9:09 PM,1 min,25°,14° above W,25° above W|

Last Updated:

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 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

National Aeronautics and Space Administration Page Editor: Bill Keeter NASA Official: Jacob Keaton