Galilean Moons Of Jupiter

That's about how Jupiter and its four biggest moons look thru Richard's telescope.

The previous time, Io was not visible.  This time it was close to Jupiter and quickly disappeared as it orbited in front of Jupiter.

It was really cool.  Also looked at the nebula in Orion's sword.  Awesome stuff.

PS: the Galilean moons were discovered in 1610.

PPS: The moon called Ganymede is an tiny bit larger than Mercury.