Modern technology makes astrophotography with long exposure times easy. Guiding systems are used to keep the object exactly on the sensor. Either as a autoguider on a guide scope or using an off-axis guider in the primary light path. You can find both systems here.
This device has 6 x USB 3.1 Ports. All ports are backwards compatible with USB 1.0 and USB 2.0 devices. Moreover, each port can deliver up to 2.5 A of current.
Ports switchable (power and data), ASCOM supported
Current of every port is monitored
Hub supplied with 12 to 14 V
Supports industrial grade temperature range from -40 °C to +85 °C
Modern autoguider like the Lacerta M-Gen are very efficient and offer a high resolution. For telescopes up to 8" aperture, even a 50 mm finder is sufficient for clean guiding with an autoguider.