How to model and animate orbiting planets in Blender

I am a CG Environment Artist focusing on environments, props, and textures. In addition, I also work with visualizations, cinematics, and film making.I provide educational materials for the beginners as well as more advanced artists and designers. I also provide game asset packs, and commissioned work for various projects.I am open to working with individuals, and various for-profit and non-profit organizations in order to fill their art and design needs.I became a CG Environment Artist and Level Designer in order to not only pursue my passions but also to assist others in expressing themselves or their business or organization in a creative manner. I believe in creating great design that fits the context and needs of the client.