Astro Devices is a small company based near Sydney, Australia. The company develops and sells software and hardware for amateur astronomers. Serge Antonov, Astro Devices’ founder and engineer, is a software developer with a strong passion for astronomy. When he realised that the latest products on the market did not meet his requirements, he decided to create his own. Over the years, Serge has developed several devices and mobile apps, most notably the Nexus series, which enjoys an excellent reputation among astronomers worldwide thanks to its quality, handling, features and functionality.