How to spot the International Space Station

Start with NASA's Spot the Station, which links to sighting opportunities and its mobile app. Choose a location close to where you will actually watch, then check the date and local time. A station pass overhead is not necessarily visible: the station must be illuminated by the Sun while the sky is dark enough for you to see it. NASA says viewing opportunities vary by location and may range from several a week to much less frequent (NASA FAQ).

Refresh the prediction close to the event and confirm that the selected location and time zone are correct. If a listing shows no visible pass, pick another date rather than assuming that the station will appear tonight.

The sighting listing tells you when to start watching, where the station is expected to appear, its maximum elevation and where it disappears. Directions such as northwest describe points along your horizon. Elevation is measured in degrees above it: 0° is the horizon and 90° is directly overhead. Hold your fist at arm's length as a rough 10° guide, not a precise measuring instrument.

A low pass can be hidden by buildings, hills or trees. Choose a safe viewing spot with a clear view along the predicted path, and give yourself a few minutes to get oriented. The listed duration is a prediction for a clear view, not a guarantee that the whole path will be visible through local obstructions.

Look at the forecast for the pass time and the part of the sky you need. A cloud forecast is an estimate; thin cloud or a single bank over the path can still block a sighting. Darkest Hour's tonight planner provides available forecast context, and our forecast guide explains its limits.

A dark rural site is not essential for a bright pass. A backyard or other permitted place can work if you have a clear view and can watch safely. Dress for the weather and stay away from traffic and uneven ground.

At the predicted time, face the listed appearance direction and watch for a point of light moving smoothly against the background stars. NASA describes the station as resembling a bright star or aircraft, but without flashing lights or changes of direction (Spot the Station). Aircraft can cross the same sky, so use the predicted time and path as well as appearance when identifying it.

The station reflects sunlight. It can fade or seem to appear partway through a pass as it moves into or out of Earth's shadow. It may also be hidden by cloud or an obstruction. Do not assume every pass starts at one horizon and ends at the other.

Check the selected place, date, local time, appearance direction and maximum elevation. Was the starting point behind a roof or tree? Did cloud cover the path? A short visible window can be easy to miss, so try another predicted pass with a clearer view. NASA's app can provide notifications for visible opportunities at a selected location; notification settings and availability depend on your device and location.

A stationary bright point is more likely to be a star or planet than the station. Other satellites can move steadily too, so treat an unpredicted moving light as unidentified until you can compare its path and time with a reliable prediction.

Reviewed 12 November 2026 against NASA's Spot the Station guide and frequently asked questions. Pass predictions and local conditions change; check the current listing for your own location. For a broader introduction to observing, read Your first night stargazing.