I saw a satellite the other day, it moved very fast through the night sky.
Now I know it took around 110 seconds for it to fully travel out of the night sky(out of my visual bounds assuming, that I'm observing from a flat area), how can I calculate an approximation of the velocity that this object was moving at?
Altitude is going to be a factor in this calculation so let's assume that the altitude is 40.000 feet just like an airplane. How would I go about solving this problem?
I also found this image which illustrates exactly what I'm trying to calculate: The Star in the illustration.
Any help is appreciated, Thanks.