Tracking ISS with Star Adventurer 2i?

I wonder if there is any documentation on the max speed at which SA2i can track… Maybe I should email the support?

Ok I contacted Sky Watcher support - they said the maximum tracking rate of SA2i is 12 times the sidereal rate 

ISS is around 16 times the sidereal 

Close one 

Or maybe it is possible to somehow tweak SA2i to increase the speed…

Ill keep looking into this

Shun-Chia yang:

ISS is around 16 times the sidereal

The ISS can move at a speed of up to 1 degree per second, which is about 240 times faster than the sidereal rate.

This is what ChatGPT 4 told me -  I guess AI bot got caught lackin

"The International Space Station (ISS) travels much faster across the sky than the apparent motion of stars caused by Earth's rotation. Specifically, the ISS orbits Earth approximately every 90 minutes, completing a full 360 degrees. In contrast, the Earth rotates 360 degrees relative to the stars in about 24 hours. Therefore, the ISS moves across the sky at a much faster rate, approximately 16 times faster than the stars move due to Earth's rotation. This speed allows the ISS to be seen crossing the sky quickly, typically visible as a bright, fast-moving object for a few minutes."

If you are at the center of Earth, then using 360 degrees/90 minutes as the ISS's angular speed is okay. However, we are at the surface of Earth, so the angular speed will be much faster when the ISS approaches us. 

Also, Iss will not move along right ascension. It is not just like tracking moon or sun. It is more like tracking airplane.