Where did Neptune get its name from?
the Roman god of the sea
What is its astronomical design supposed to imply?
Neptune's trident.
Was it discovered accidentally by telescope?
No
How was it found?
mathematical prediction
Who did that?
Alexis Bouvard
What made him think there was another planet out there?
Unexpected changes in the orbit of Uranus
How many other planets were discovered this way?
One
Who first saw it through a telescope?
Johann Galle
Was it close to where he thought it would be?
Yes
Does it have any moons?
Yes
More than ten?
Yes
Which is the biggest of them?
Triton
Is the planet easily seen through a telescope?
No
Have any man made objects gotten close to it?
Yes
Which?
Voyager 2
Is Neptune the seventh planet from the sun?
No
Is it a fairly dense planet?
Yes
How many earth years is one Neptune year?
164.8
Is there a similar planet to Neptune?
Yes
Which one?
Uranus