jupiter again

[skysculptor]

nice views of jupiter again tonight air is clearer . a little windy but good . seems to have 4 moons on one side tonight? 2 days ago 3 moons one side and 1 on the other. are they the same 4 main moons or am i seeing a different one?

[ilove1995]

Hi,

It's always the same four galilean moons that you see, io, Europa, Ganymede and Callisto though sometimes not all are visible when their path takes them behind Jupiter. This link will give you information on Jupiter and it's moons including info on when the GRS is visible. skyandtelescope also have an iPhone app which is very useful.

http://www.skyandtelescope.com/observing/objects/javascript/jupiter

Al

[skysculptor]

many thanks, for the info and the link, it really does look good tonight nice banding,