Following the discovery of the Galilean moons in January 1610 by means of a thin telescope ... Amalthea was the fifth and last moon of Jupiter to be discovered through a telescope using sight alone.
Let's return to Taurus and Jupiter in the east this evening as another Galilean moon and shadow transit ... with Castor above it. Through a telescope, Mars now appears 13" across and roughly fully lit ...
Io, a highly volcanic world, is the innermost Galilean moon ... The 'Shakespearean' Ocean Moons Of Uranus-And There's No Time To WasteBy Jamie Carter You will need a telescope to see such events ...
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