International Space Station

ISS observation

When can I spot the Space Station?

Observing of the International Space Station

The International Space Station (ISS) can easily be spotted with the naked eye. Because of its size (110m x 100m x 30m), it reflects a large amount of sunlight.

The best time to observe the ISS is when it is nighttime at your location, and the Space Station is sunlit. Often, such a viewing situation occurs in the morning before sunrise, or in the evening after sunset.

Visible ISS passes over Taipei City

You find a list of the next sighting opportunities for Taipei City below. The green bars indicate the brightness of the ISS on its pass.

The list contains all visible passes of the ISS during the next ten days. Please click on a pass to get more details.

Past ISS passes

Thu, Aug 06, 2020

Begin
07:34:02 PM CST
Dur.
4:28
-2.3 mag
Thu, Aug 06, 2020 Begin Max. End
Time (CST) 07:34:02 PM 07:37:11 PM 07:38:30 PM
Direction NNW NE E
Altitude 10° 39° 26°
Brightness -2.3 mag -2.3 mag
The grey circle indicates the area where the Space Station is at least 10° above the horizon.
The red line shows where the ISS is sunlit and visible.
On the blue line the ISS is in the Earth's shadow and invisible or it is less than 10° above the horizon or the sky is not dark enough to see the ISS.

Fri, Aug 07, 2020

Begin
06:46:58 PM CST
Dur.
5:09
-1.3 mag
Fri, Aug 07, 2020 Begin Max. End
Time (CST) 06:46:58 PM 06:49:32 PM 06:52:07 PM
Direction N NE E
Altitude 10° 20° 10°
Brightness -1.3 mag -1.3 mag
The grey circle indicates the area where the Space Station is at least 10° above the horizon.
The red line shows where the ISS is sunlit and visible.
On the blue line the ISS is in the Earth's shadow and invisible or it is less than 10° above the horizon or the sky is not dark enough to see the ISS.
Begin
08:23:41 PM CST
Dur.
2:26
-1.2 mag
Fri, Aug 07, 2020 Begin Max. End
Time (CST) 08:23:41 PM 08:26:07 PM 08:26:07 PM
Direction WNW WSW WSW
Altitude 10° 20° 20°
Brightness -1.2 mag -1.2 mag
The grey circle indicates the area where the Space Station is at least 10° above the horizon.
The red line shows where the ISS is sunlit and visible.
On the blue line the ISS is in the Earth's shadow and invisible or it is less than 10° above the horizon or the sky is not dark enough to see the ISS.

Sat, Aug 08, 2020

Begin
07:35:34 PM CST
Dur.
5:16
-2.4 mag
Sat, Aug 08, 2020 Begin Max. End
Time (CST) 07:35:34 PM 07:38:44 PM 07:40:50 PM
Direction WNW SW SSE
Altitude 10° 41° 18°
Brightness -2.4 mag -2.4 mag
The grey circle indicates the area where the Space Station is at least 10° above the horizon.
The red line shows where the ISS is sunlit and visible.
On the blue line the ISS is in the Earth's shadow and invisible or it is less than 10° above the horizon or the sky is not dark enough to see the ISS.

Sun, Aug 09, 2020

Begin
06:47:52 PM CST
Dur.
6:40
-3.2 mag
Sun, Aug 09, 2020 Begin Max. End
Time (CST) 06:47:52 PM 06:51:12 PM 06:54:32 PM
Direction NW ENE SE
Altitude 10° 86° 10°
Brightness -3.2 mag -3.2 mag
The grey circle indicates the area where the Space Station is at least 10° above the horizon.
The red line shows where the ISS is sunlit and visible.
On the blue line the ISS is in the Earth's shadow and invisible or it is less than 10° above the horizon or the sky is not dark enough to see the ISS.

Tue, Aug 11, 2020

Begin
06:50:06 PM CST
Dur.
5:03
-1.3 mag
Tue, Aug 11, 2020 Begin Max. End
Time (CST) 06:50:06 PM 06:52:38 PM 06:55:09 PM
Direction WNW SW S
Altitude 10° 20° 10°
Brightness -1.3 mag -1.3 mag
The grey circle indicates the area where the Space Station is at least 10° above the horizon.
The red line shows where the ISS is sunlit and visible.
On the blue line the ISS is in the Earth's shadow and invisible or it is less than 10° above the horizon or the sky is not dark enough to see the ISS.