Week in Space Data, every Friday.
On the night of Saturday 26 September 2026, the ISS is not visible from Cairo. The next visible pass is on Sunday 27 September 2026 at 8:05 PM EEST: it comes into view low in the north-northwest.
Cairo, Egypt: 30.04°N, 31.24°E (city centre). Recomputed every 15 minutes. Nothing on this page is sponsored.
Your position is rounded to 0.1 degree (about 10 km) on your device before it is used. That rounded point is saved in this browser so the page remembers your place (Forget clears it), and we store it only if you ask for email alerts. Not listed? Your location works anywhere.
The station is crossing this sky in daylight or in Earth's shadow tonight. The next one you can see:
Sun 27 Sep, EEST (17:05 UTC)
8:05 PM: it comes into view low in the north-northwest, climbs to 27°, halfway up in the north-northeast at 8:08 PM, then fades into Earth's shadow 27° up in the north-northeast at 8:08 PM.
6:16 AM: it comes into view low in the south, climbs to 18°, low in the southeast at 6:18 AM, then drops below 10° in the east at 6:20 AM.
Full Moon, 100% lit
Up all night; sets Sun 27 Sep at .
At dusk it is 8° up in the east. A bright Moon washes out faint stars and Hubble; the ISS and planets still show.
Last quarter: Sat 3 Oct at
Jupiter magnitude −1.9
Up from to ; highest while dark (39°) in the east at .
Sunset . Dark enough for the ISS from . Fully dark to . Sunrise . Times are EEST unless you switch to UTC.
Satellite passes: CelesTrak orbital elements (we download them at most every 6 hours) propagated with SGP4; checked against Heavens-Above for 31 visible ISS passes over six cities (26 to 29 September 2026), start, highest point and end agreed within 5 seconds (usually 1 to 3) and height within half a degree, except that our darkness rule can start a twilight pass a few minutes later than Heavens-Above does. Times drift by up to a minute or two when elements are several days old or after the station changes its orbit, so we time passes only a few days ahead. A pass counts as visible when, at some point 10° or more above your horizon, the Sun is at least 6° below your horizon and the satellite is in sunlight; times and heights describe that visible part, and brightness is estimated from distance and sunlight angle. Moon and planets: computed with astronomy-engine. Launches: times to the minute only, within 400 km of the pad. Aurora: NOAA SWPC Kp and storm forecast, with an approximate geomagnetic latitude. Newest elements: epoch 2026-09-26 11:47 UTC. Computed 4:36 AM EEST.
Week in Space Data, every Friday: next week's launches, the week in numbers and our own labelled analysis. No account, unsubscribe in one click.
Week in Space Data on Fridays, SpaceNexus AM on weekday mornings if you tick it. Unsubscribe anytime.
Want an in-app or phone notification before each visible pass at your exact coordinates? Pass alerts are free with a SpaceNexus account: set them up in the alert center.
A good ISS pass reaches magnitude −2 to −4, brighter than any star; at its best only the Moon and Venus outshine it. A low or distant pass can be as faint as magnitude 0. It is a steady white point that does not blink and makes no sound. Tiangong is a step dimmer (about −1 to −3 on a high pass) and Hubble is a faint, steady star (about +1.5 to +2.5) that wants a dark sky. We estimate the brightness of each pass from its distance and the angle of sunlight on it, the method Heavens-Above uses, and our figures land within about half a magnitude of theirs.
A satellite is visible only while it is in sunlight and you are in darkness. When it flies into Earth's shadow it fades out over a few seconds, often still high in the sky. That is not cloud: it is orbital sunset. We show where and when each pass fades.
The ISS orbits at 51.6° inclination and its ground track drifts west about 22° each orbit, so it overflies Cairo in runs of a week or two, then swings away for a similar stretch. Even when it does pass over, the Sun has to line up so the station is lit while your sky is dark. On nights with none, this page gives the next visible pass when there is one in the next three days; further out, pass times drift too much to print.
They are computed for Cairo's coordinates with astronomy-engine, an open-source ephemeris checked against NASA JPL data to about an arcminute, so rise and set times are good to about a minute. A planet is listed when it is at least 10° above the horizon while the Sun is more than 6° below it.
north-northeast, 27° up
Fades
north-northeast, 27° up
Drops low
east, 10° up
Saturn magnitude +0.2
Up from to ; highest while dark (62°) in the south at .
Mars magnitude +1.1
Up from to ; highest while dark (58°) in the east at .
Not in a dark sky tonight: Mercury, Venus.