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 Zagreb

You find a list of the next sighting opportunities for Zagreb 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, Nov 26, 2020

Begin
04:34:58 PM CET
Dur.
6:36
-3.2 mag
Thu, Nov 26, 2020 Begin Max. End
Time (CET) 04:34:58 PM 04:38:16 PM 04:41:34 PM
Direction SW SSE ENE
Altitude 10° 76° 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.
Begin
06:12:15 PM CET
Dur.
3:01
-2.1 mag
Thu, Nov 26, 2020 Begin Max. End
Time (CET) 06:12:15 PM 06:15:16 PM 06:15:16 PM
Direction WNW NNW NNW
Altitude 10° 33° 33°
Brightness -2.1 mag -2.1 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, Nov 27, 2020

Begin
05:24:32 PM CET
Dur.
5:05
-2.3 mag
Fri, Nov 27, 2020 Begin Max. End
Time (CET) 05:24:32 PM 05:27:40 PM 05:29:37 PM
Direction W NNW NE
Altitude 10° 40° 19°
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.
Begin
07:02:03 PM CET
Dur.
0:32
-0.8 mag
Fri, Nov 27, 2020 Begin Max. End
Time (CET) 07:02:03 PM 07:02:35 PM 07:02:35 PM
Direction WNW NW NW
Altitude 10° 13° 13°
Brightness -0.8 mag -0.8 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, Nov 28, 2020

Begin
04:36:50 PM CET
Dur.
6:28
-2.7 mag
Sat, Nov 28, 2020 Begin Max. End
Time (CET) 04:36:50 PM 04:40:04 PM 04:43:18 PM
Direction W NNW ENE
Altitude 10° 52° 10°
Brightness -2.7 mag -2.7 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
06:14:24 PM CET
Dur.
2:32
-1.8 mag
Sat, Nov 28, 2020 Begin Max. End
Time (CET) 06:14:24 PM 06:16:56 PM 06:16:56 PM
Direction WNW NNW NNW
Altitude 10° 28° 28°
Brightness -1.8 mag -1.8 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, Nov 29, 2020

Begin
05:26:42 PM CET
Dur.
4:34
-1.9 mag
Sun, Nov 29, 2020 Begin Max. End
Time (CET) 05:26:42 PM 05:29:40 PM 05:31:16 PM
Direction WNW N NE
Altitude 10° 30° 20°
Brightness -1.9 mag -1.9 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
07:03:54 PM CET
Dur.
0:20
-0.7 mag
Sun, Nov 29, 2020 Begin Max. End
Time (CET) 07:03:54 PM 07:04:14 PM 07:04:14 PM
Direction NW NW NW
Altitude 10° 12° 12°
Brightness -0.7 mag -0.7 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.

Mon, Nov 30, 2020

Begin
04:38:58 PM CET
Dur.
6:05
-2.1 mag
Mon, Nov 30, 2020 Begin Max. End
Time (CET) 04:38:58 PM 04:42:00 PM 04:45:03 PM
Direction WNW N NE
Altitude 10° 33° 10°
Brightness -2.1 mag -2.1 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
06:16:21 PM CET
Dur.
2:14
-1.8 mag
Mon, Nov 30, 2020 Begin Max. End
Time (CET) 06:16:21 PM 06:18:35 PM 06:18:35 PM
Direction WNW NNW NNW
Altitude 10° 28° 28°
Brightness -1.8 mag -1.8 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, Dec 01, 2020

Begin
05:28:44 PM CET
Dur.
4:15
-1.9 mag
Tue, Dec 01, 2020 Begin Max. End
Time (CET) 05:28:44 PM 05:31:41 PM 05:32:59 PM
Direction WNW N NE
Altitude 10° 29° 22°
Brightness -1.9 mag -1.9 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
07:05:36 PM CET
Dur.
0:20
-0.7 mag
Tue, Dec 01, 2020 Begin Max. End
Time (CET) 07:05:36 PM 07:05:56 PM 07:05:56 PM
Direction WNW WNW WNW
Altitude 10° 12° 12°
Brightness -0.7 mag -0.7 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.

Wed, Dec 02, 2020

Begin
04:41:03 PM CET
Dur.
5:52
-1.8 mag
Wed, Dec 02, 2020 Begin Max. End
Time (CET) 04:41:03 PM 04:43:59 PM 04:46:55 PM
Direction WNW N ENE
Altitude 10° 29° 10°
Brightness -1.8 mag -1.8 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
06:18:04 PM CET
Dur.
2:18
-2.2 mag
Wed, Dec 02, 2020 Begin Max. End
Time (CET) 06:18:04 PM 06:20:22 PM 06:20:22 PM
Direction WNW NNW NNW
Altitude 10° 36° 36°
Brightness -2.2 mag -2.2 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.

Thu, Dec 03, 2020

Begin
05:30:31 PM CET
Dur.
4:21
-2.2 mag
Thu, Dec 03, 2020 Begin Max. End
Time (CET) 05:30:31 PM 05:33:38 PM 05:34:52 PM
Direction NW NNE ENE
Altitude 10° 37° 26°
Brightness -2.2 mag -2.2 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.
Begin
07:07:19 PM CET
Dur.
0:31
-0.8 mag
Thu, Dec 03, 2020 Begin Max. End
Time (CET) 07:07:19 PM 07:07:50 PM 07:07:50 PM
Direction WNW WNW WNW
Altitude 10° 14° 14°
Brightness -0.8 mag -0.8 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, Dec 04, 2020

Begin
04:42:56 PM CET
Dur.
6:02
-2.0 mag
Fri, Dec 04, 2020 Begin Max. End
Time (CET) 04:42:56 PM 04:45:57 PM 04:48:58 PM
Direction WNW N ENE
Altitude 10° 32° 10°
Brightness -2.0 mag -2.0 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
06:19:43 PM CET
Dur.
2:43
-2.9 mag
Fri, Dec 04, 2020 Begin Max. End
Time (CET) 06:19:43 PM 06:22:26 PM 06:22:26 PM
Direction WNW WNW WNW
Altitude 10° 57° 57°
Brightness -2.9 mag -2.9 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, Dec 05, 2020

Begin
05:32:09 PM CET
Dur.
5:00
-3.0 mag
Sat, Dec 05, 2020 Begin Max. End
Time (CET) 05:32:09 PM 05:35:26 PM 05:37:09 PM
Direction WNW NNE E
Altitude 10° 65° 25°
Brightness -3.0 mag -3.0 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
07:09:21 PM CET
Dur.
0:47
-0.8 mag
Sat, Dec 05, 2020 Begin Max. End
Time (CET) 07:09:21 PM 07:10:08 PM 07:10:08 PM
Direction W W W
Altitude 10° 14° 14°
Brightness -0.8 mag -0.8 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, Dec 06, 2020

Begin
04:44:36 PM CET
Dur.
6:25
-2.6 mag
Sun, Dec 06, 2020 Begin Max. End
Time (CET) 04:44:36 PM 04:47:48 PM 04:51:01 PM
Direction WNW NNE E
Altitude 10° 47° 10°
Brightness -2.6 mag -2.6 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
06:21:31 PM CET
Dur.
3:32
-2.1 mag
Sun, Dec 06, 2020 Begin Max. End
Time (CET) 06:21:31 PM 06:24:34 PM 06:25:03 PM
Direction WNW SW SSW
Altitude 10° 35° 33°
Brightness -2.1 mag -2.1 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.