Wesley’s Annulus shows only the Earth and the Sun. But this simple design makes it both a clock, and a calendar!

Ellie’s Annulus displays the Big 3: The Sun, the Moon, and the Earth. Some might know these better as Sun-Moon-Rising.

Justin’s Annulus displays the 7 Visible Wanders: Saturn, Jupiter, Mars, Sun, Venus, Mercury, and Moon, as well as the Earth.

Brandon’s Annulus displays seen and unseen objects in the Solar System, adding Ice-Giants, Dwarf Planets, and Asteroids.

Paul’s Annulus shows the fictional planet of Arrakis / Dune, from the novel by Frank Herbert, with its two canonical Moons.