Jupiter Spotting

Jupiter was in a cheeky little position just above the fence line when I went out to feed Millie so I thought I'd have a quick look. It looked like the three closest moons were on the left and the farthest on the right. Although the scope is upside down/back to front so it's actually the other way around. Knowing what a nightmarish, lava spewing hell hole the closest one (Io) is, it's always weird to see it as a little bright dot through the telescope. Also weird to think of all those photons leaving the surface of the sun whizzing all the way out to Jupiter, bouncing off the surface and all the way back to earth in the space of around an hour and a quarter before hitting my retina and being absorbed. That's a distance of about 1.35 billion km if I've done my calcs correctly. Relatively speaking of course.