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ISS pass times for Vienna, Austria
Next visible ISS pass over Vienna: Tomorrow morning at 04:16 CEST — look east-northeast, climbs to 82° (nearly overhead) heading east-northeast, visible for less than a minute.
Visible passes over Vienna — next 5 days
ISS, China’s Tiangong space station and the Hubble Space Telescope. Times are local to Vienna. “Max height” is degrees above the horizon: 90° is straight overhead.
| When | Object | Path | Max height | Visible for |
|---|---|---|---|---|
| Sat 24 Oct 4:16 CEST | ISS | ENE → ENE | 82°bright/high | 1 min |
| Sat 24 Oct 5:49 CEST | ISS | NW → ENE | 45°bright/high | 4 min |
| Sat 24 Oct 19:22 CEST | Tiangong | S → SSE | 11° | 1 min |
| Sun 25 Oct 4:04 CET | ISS | NE → ENE | 50°bright/high | 2 min |
| Sun 25 Oct 5:37 CET | ISS | WNW → E | 52°bright/high | 6 min |
| Sun 25 Oct 18:58 CET | Tiangong | SW → SSW | 19° | 1 min |
| Mon 26 Oct 4:51 CET | ISS | NW → E | 46°bright/high | 4 min |
| Mon 26 Oct 17:58 CET | Tiangong | SSW → SE | 15° | 3 min |
| Tue 27 Oct 4:06 CET | ISS | NE → ENE | 44°bright/high | 2 min |
| Tue 27 Oct 5:39 CET | ISS | WNW → ESE | 80°bright/high | 6 min |
| Tue 27 Oct 18:34 CET | Tiangong | SW → S | 22° | 2 min |
| Wed 28 Oct 4:53 CET | ISS | NW → E | 62°bright/high | 4 min |
Hubble’s orbit stays within about 28.5° of the equator, so it never rises high enough to see from Vienna.
Computed Fri 23 Oct, 13:22 CEST.
Get a heads-up before the best pass each night — free on iPhone
PERIGEE alerts you before the night’s best ISS pass over Vienna, and shows everything overhead on a live 3D globe.
Open the live 3D viewHow to spot it
- Go outside a few minutes early, let your eyes adjust, and face the direction the pass starts from.
- It looks like a bright, steady star moving smoothly across the sky. It takes a few minutes to cross and never blinks — blinking or colored lights mean a plane.
- The ISS is one of the brightest objects in the night sky, brighter than any star. Tiangong is a little fainter; Hubble looks like an ordinary star on the move.
- It often fades out partway across the sky: that is the moment it enters Earth’s shadow.
- Height above the horizon: 10° is about a fist held at arm’s length, 90° is straight overhead. Passes above 40° are the easiest and brightest.
Frequently asked questions
When can I see the ISS from Vienna tonight?
There is no visible ISS pass over Vienna tonight. The next one is tomorrow morning at 04:16 CEST: look east-northeast, climbs to 82° (nearly overhead) heading east-northeast, visible for less than a minute.
Why can’t I see the ISS every night?
The ISS is only visible around dawn and dusk, when it is still lit by the sun while you are in darkness. Its orbit drifts relative to the sunrise and sunset line, so visible passes come in windows of several days (first in the morning sky, a few weeks later in the evening sky) with gaps in between when every pass is in daylight or in Earth’s shadow.
Do I need a telescope or binoculars?
No. The ISS is one of the brightest objects in the night sky and is easy to see with the naked eye, even from a brightly lit city. Binoculars won’t show any detail, and a telescope is very hard to aim at something moving that fast.
How accurate are these times?
They are computed from the latest public orbital elements (CelesTrak), refreshed every few hours, and are usually good to within a minute. The ISS occasionally fires its engines to adjust its orbit, which can shift pass times, so check again on the day.
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