The Sky Today on Saturday, October 4: Io and Europa overlap

Jupiter’s Galilean moons often transit the planet’s disk one at a time — tonight, however, Io and Europa cross the disk together. The two moons even appear to partially overlap as their transits begin early this morning at 4:04 a.m. EDT, with smaller Europa passing in front of larger Io.  You’ll spot bright Jupiter highContinue reading “The Sky Today on Saturday, October 4: Io and Europa overlap”
The post The Sky Today on Saturday, October 4: Io and Europa overlap appeared first on Astronomy Magazine.