>>3481013well you have a few problems here. One is that the ISS is tiny. Two is that it orbits the earth every 90 minutes which means that it appears to move quite quickly in the sky, compared to the stars. You need to treat it more like a regular daytime subject that you want to stop motion on.
if you are okay to have it be a streak in the sky, kinda like a meteor, then just take a picture as normal with as much exposure as you can without trailing. If you actually want to be able to identify it as the ISS then you need a metric fuckton of focal length. Which means a proper telescope. And then you'll need one of two things, either a.) very precise positioning and good reflexes to snap the ISS as it floats through your field of view, or b.) not just a tracker but an expensive computerized one that can track something other than the stars.
Your other option is to wait until the ISS transits the moon. You'll see a little space-station-shaped silhouette on it. This probably requires you to be at a very specific location to see (though people that are into astronomy are really into it, so I wouldn't be surprised if "where do I have to be and when to see the ISS transit the moon" is a straightforwardly-answerable question) but because the moon itself, though far larger than the ISS in the sky, is still not at all big by photographic standards, you'll still need a much longer lens than what you apparently have.
On the plus side the moon is very easy to find and it's quite bright, so if you can muster that focal length you won't have shutter speed problems or tracking to worry about. Though the moon still wants something longer than the easily-obtainable 450mm-equivalent FoV (300mm lens on a crop sensor), unfortunately. At that length you won't see the ISS as much more than a black dot, you'd want something closer to 1000 equivalent.
tldr: don't try to photograph it, just bring your eyes and optionally binoculars.
