Welcome to the hobby (even if a few years late). Pretty much everyone has the same experience as you. You buy the telescope, and then realize you need to buy a telescope for your telescope to use as a guide scope for accurate tracking for longer exposures.
However, those long exposures are much more likely to get photobombed by an airplane or satellite. So you're really better off taking shorter exposures with the highest ISO you can get away with, and then just stacking them.
I have a much wider scope that I can do 30s exposures unguided before trailing starts to become noticeable. If you can get away with 15s, you'd be amazed at what you can achieve with newer sensors.
Just some hints to help the disappointment at bay and maybe get you playing with the toys
However, those long exposures are much more likely to get photobombed by an airplane or satellite. So you're really better off taking shorter exposures with the highest ISO you can get away with, and then just stacking them.
I have a much wider scope that I can do 30s exposures unguided before trailing starts to become noticeable. If you can get away with 15s, you'd be amazed at what you can achieve with newer sensors.
Just some hints to help the disappointment at bay and maybe get you playing with the toys