An excellent guide for understanding the science of telescopes.

by Adrian Ashford

https://skyandtelescope.org/astronomy-equipment/how-to-choose-a-telescope/

https://skymaps.com

Free planetarium for your computer. This software is downloadable on Linux, MacOS, and Windows.

Provides weather condtions for a specific location and informs users on whether or not it's good to stargaze. Also includes forecast, charts, a map, etc.

Available on Android and iOS, this app works similarly to Astrospheric. Clear Outside provides detailed weather and sky information, across a variety of days and times, for any location on Earth.

With this app, you get wireless telescope control, updates on astronomical events like eclipses, sky conditions, placement of deep space objects, and many more.

Provides weather forecasting for astronomers. Also includes solar events.