Sorry if this has been done before, but I saw the ISS last night from London.
-Before hand I consulted
NASA's Spaceflight Sightings Page. It helpfully told me that the ISS would appear at
6:56 PM, going
from WSW to the south.
-So at precisely that time a star-like dot appeared in the sky and tracked across to the south. It quickly faded as (presumably) the sun set for the ISS and light was no-longer reflected back to me.
I concluded that it was unlikely to be a plane because it had no flashing lights and it appeared at precisely the specified time in the right place, moving in the right direction, very quickly. I intend to see it tonight also, when it appears at precisely 5:42 PM.
An object which gets around the whole earth that fast could only be in orbit, right?