You saw three of it's moons. If you have a look at Jupiter as soon as it
rises, and then again before it sets you will see that the moons have moved a bit. The number of moons visible on any given night varies; some may be behind Jupiter, and one might be passing between us and Jupiter, and will show as a black dot seemingly on Jupiter.
Sculptor is readily visible in a 120mm scope, but not bright, more like an elongated grey smudge.
raymo
|