The ancients knew about Jupiter. They knew it was different from other objects in the sky. However, it is not known for sure if one person can claim the discovery, as it happened before recorded history began (which more or less addresses the "when" part).
Galileo in 1610 when he was looking at the stars and saw that 1 had moons orbiting around it
jupiter has the maximum number of satellites.... of almost 63 moons
No one is credited with discovering the constellation Centaurus because it can be seen with the naked eye. That said, it was first cataloged in the 2nd century by the Greek astronomer, Ptolemy.
People don't exactly recall who discovered Jupiter. All we know is that Jupiter was a Roman god, and it was a part of Babylonian culture, too. Galileo was a big part of discovering Jupiter's moons though, if you would like to know.
the names of jupiter are as follows: jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter and last but not least JuPiTeR
Jupiter is Jupiter is Jupiter is Jupiter is
discovering
radium
Christopher Columbus was an early explorer. He is credited with discovering the Americas.
Christopher Columbus, an Italian explorer sailing under the flag of Spain, is credited with the discovery of America in 1492.
Euclid
I'm not exactly sure what you mean when you say "discovering." However, Alexander Graham Bell is credited for inventing it. -THE SMOKE LIVES
leif erikson
Columbus
Marie Curie
Martinus Beijerinck in 1898.
Yes, Jupiter has many moons! We are discovering more and more to this day :)
The mass of the atom