Hallo Northern SKY is a free planetarium program to control your telescope via the ASCOM or INDI interface.

Hallo Northern SKY is a comprehensive, up-to-date deep sky database with 30.000 objects and detailed descriptions. A star database with millions of stars and hundreds of Deep Sky Survey images blends accurately. Additionally, the program can access the online version of the Deep Sky Survey, allowing online updates of the asteroid and comet databases, and it can search online in professional astronomical databases.

Hallo Northern SKY appears complicated at first, but don't be fooled. You'll want to go into Settings (File > Settings or Ctrl + A) to choose your location and telescope. There are numerous other settings, including colors, internet image access, servers, etc. Once you have your settings complete, everything makes more sense.

Hallo Northern SKY offers enough features to be considered a professional app if you have a telescope that you can control.