Contact Bob | About this Site | Site Map
Bob the Alien's Tour of the Solar System
The Sun Mercury Venus Earth The Moon Mars Jupiter Saturn Uranus Neptune Pluto and Dwarf Planets Comets


Ask an Alien! Ask an Alien about Neptune
Here are questions that visitors to this website have asked about Neptune. If you want to ask a question, email it to Bob the Alien using this form.

To view questions about other topics, choose its section below.

- The Sun - Mercury - Venus - Earth - Mars - Jupiter - Saturn - Uranus - Neptune - Pluto and Dwarf Planets - The Moon -
- Asteroids and Comets - Stars and Galaxies - Space Exploration - Website -

Question Answer
Vince asked:
From biggest to smallest where does Neptune fall in at?
From biggest to smallest, Neptune is the 4th biggest planet in the Solar System. The full order of planets from biggest to smallest is Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars and Mercury.
What are the names of Neptunes moons??? As of January 2006, there are 13 moons known to orbit Neptune. The moons with names are (in order from nearest to furthest from the planet)

Naiad
Thalassa
Despina
Galatea
Larissa
Proteus
Triton
Nereid
Psamathe.

There are also four other moons orbiting Neptune (3 in between Nereid and Psamathe and one beyond Psamathe) which were discovered in 2002 and 2003 but don’t yet have names. The largest moon is Triton (2706 km in diameter) The next largest is Proteus, only 416km in diameter. Most of the moons are irregularly shaped, not round like Triton.

UPDATE - SEPTEMBER 2007
The four Moons of Neptune discovered in 2002 and 2003 have now been named. The three between Nereid and Psamathe and named Halimede, Sao and Laomedeia. The most distant moon is Neso. For more information about Neptune's Moons, visit www.bobthealien.co.uk/neptunemoon.htm
Hi, I'm doing a school project at school about the plant Neptune. Could you please help by answering my question? Does the Planet Neptunes ring have a name or any other facts about it? Neptune has a number of rings spinning around it but there are three main ones. These are named after the three astronomers credited with the discovery of the planet. The closet ring is the Galle ring. This ring appears to be incomplete and is visible as three arcs. These are in fact areas where the ring is thicker. These "arcs" are known as Liberty, Equality and Fraternity. The next ring out is the Le Verrier ring, and the most distant ring is the Adams ring.
Sallyann asked:
can u tell me some facts about neptune because i need to know about 10 facts please if u dont mind
If you go to this page, you'll find ten facts about Neptune: http://www.bobthealien.co.uk/neptten.htm


Ask Your Question Here!