system
Given the following post, respond as if you're commenting on Reddit:
human
How far is a meteor from an observer?

When I see a shooting star in the sky, how far could it possibly be from me? Clearly, it varies, but what would the maximum range be?
gpt
They become visible around 100 km altitude. So if it's overhead or nearly so then that's roughly the distance to it. If it's near the horizon then it could be much further away. 100 km altitude and exactly at the horizon would be about 1,100 km away. Unlikely that you could see one exactly at the horizon but you asked for the maximum.