This guide explains how this is done in the Harvard Style, sometimes called the author-date system. There are two steps to acknowledging your sources: cite your references in the text, to show where you have drawn upon other people's work, and then list them at the end of your work under the heading 'References'.eferencing Referencing means giving a full description of each source you have cited in the text, in a list of references or bibliography, at the end of your work: ï§ Write the list in alphabetical order: put the first authorâs last name first and then his/her initials.
Galileo discovered the 4 moons of jupiter through a telescope which he never invented but was the first to use.
This gives Jupiter the largest number of moons with reasonably secure orbits of any planet in the Solar System. The most massive of them, the four Galilean moons, were discovered in 1610 by Galileo Galilei and were the first objects found to orbit a body that was neither Earth nor the Sun. Inner satellites or Amalthea group: Metis, Adrastea, Amalthea, and Thebe. 2  These orbit very close to Jupiter; the innermost two orbit in less than a Jovian day. 3  The latter two are respectively the fifth and seventh largest moons in the Jovian system.