Edited by: Noel Geronimo
Spring 2012


Neptune is named after the Roman god of the sea, and was the first planet to be predicted by mathematical prediction discovered by Urbain Le Verrier, John Couch Adams, Johann Galle in September 23, 1846. Neptune has been visited by only one spacecraft, voyager 2 which flew by the planet on August 25, 1989. Neptune is similar in composition to Uranus, and both have compositions which differ from those of the largest gas giants, Jupiter and Saturn. Neptune's atmosphere, while similar to Jupiter's and Saturn's in that it is composed primarily of hydrogen and helium, along with traces of hydrocarbons and possibly nitrogen, contains a high proportion of "ice" such as water, ammonia and methane. astronomers sometimes categorize Uranus and Neptune as "ice giants" in order to emphasize these distinctions. the interior of Neptune, like that of Uranus, is primarily composed ices and rock. traces of methane in the outermost regions in part account for the planet's blue appearance.
Semi-Major Axis
4,503,443,661 km
30.10366151 AU
Orbital Period
60,190.03 days
164.79 Years
1.0243 x 10^26 kg
17.147 Earths
Date read: 05-22-12
Website Title: Nine Planets Neptune
Source, Author: 1994-2011 © Copyright Nine Planets
Description: If you are looking for picture of Neptune and it's spots, then this website is ideal for that, there are some pictures shown and underneath each picture is a description of what the photo is focused on and the credit of the provider.
Navigation: There are no extra links on the page, this is just a simple simple with photos of the planet along captions to go with them, it's an easy website to use and understand
Readability: Each paragraph written is very clear and descriptive. it explains exactly what you are looking at in the photos and is ideal for high schoolers and older.

Date read: 05-22-12
Website Title: Solar System Exploration: Neptune
Source, Author: NASA Solar System Exploration, Phil Davis, David Martin, Samantha Harvey
Description: This is a very informative website. it gives you all the information known about Neptune from the size, volume and mass. and it is up to date since this website is by NASA.
Navigation: This is a very organized website with tabs so it is easy to find information you are looking for.
Readability: It is very readable and is not confusing with words we don't understand or not even knowing what they mean, young students to college students can go on this website and do research and find and understand the information.

Date Read: 05-22-12
Website Title: Neptune
Source, Author: Kids Astronomy Kids Astronomy, KidsKnowIt.com© 1998-2012 (Author not given)
Description: This is a friendly kid website with easy access to the basic information about Neptune with a bright color background to keep younger kids to pay attention and not dose off.
Navigation: This website put all their information on one page to make it simple for young students to find the information and get on with their day, they have many links on the side of the page to the rest of the solar system.
Readability: The website is aiming towards young students so it's readable and the vocabulary are easy to read and understand.

The planet Neptune is the eighth planet from the Sun and has a thick atmosphere and the fastest winds in the solar system.
The planet Neptune is the eighth planet from the Sun and has a thick atmosphere and the fastest winds in the solar system.

Date Read: 05-22-12
Website Title: Views of the Solar System: Neptune
Source, Author: Solar Views Solar Views, Calvin J. Hamilton
Description: This website might not be the prettiest but the point gets across, providing pictures and explaining the picture so it still very informative.
Navigation: Just as all the websites so far the ability to find information is easy since there are links on the side of the page.
Readability: The writer had very clear and well explained thoughts put into this page. The demographic for this website is designed for young adults and older.

Date Read: 05-23-11
Website Title: Exploring the Planets: Neptune
Source, Author: Smithsonian National Air and Space Museum Exploring the Planets: Neptune, ©2002 National Air and Space Museum (Author not given)
Description: The basic information on Neptune is given on this website, such as discoverer, distance from the sun, how long a year is, and comparisons to the Earth. The writer goes further into detail on the planet's atmosphere, its ring and moons. There is also an index of pictures for the reader to look at.
Navigation: The website is user-friendly. Once you enter the page there is a list of links that lead to basic information, Neptune's atmosphere, rings, moons, and an imagery index. It would be easier if all of the information they gave you was already on one full page instead of making the user go back and forth to look at all of the information.
Readability: This page is ideal for young adults and older. The information is direct, brief and concise, yet very understandable.