+ 1-888-787-5890  
   + 1-302-351-4405  
 
 
 
 

Essay/Term paper: Neptune

Essay, term paper, research paper:  Science Research Papers

Free essays available online are good but they will not follow the guidelines of your particular writing assignment. If you need a custom term paper on Science Research Papers: Neptune, you can hire a professional writer here to write you a high quality authentic essay. While free essays can be traced by Turnitin (plagiarism detection program), our custom written essays will pass any plagiarism test. Our writing service will save you time and grade.



Neptune


Neptune is the outermost planet of the gas giants. It has an equatorial
diameter of 49,500 kilometers (30,760 miles) and is the eighth planet from the
sun. If Neptune were hollow, it could contain nearly 60 Earth's. Neptune
orbits the Sun every 165 years. It has eight moons, six of which were found by
Voyager 2. A day on Neptune is 16 hours and 6.7 minutes. Neptune was
discovered on September 23, 1846 by Johann Gottfried Galle, of the Berlin
Observatory. Neptune got its named from the Roman God of the Sea. Much of what
is know today about Neptune was discovered in 1989 by the U.S Voyager 2
spacecraft during its 1989 flyby f Neptune. Neptune as compared to Earth is 3.9
times the diameter, 30 times the distance from the sun, 17 times as massive, and
0.3 times the density. Neptune travels around the Sun in an elliptical orbit at
an average distance of 4.504 billion km (2.799 billion miles). Neptune consists
largely of hydrogen and helium, and it has no apparent solid surface. The first
two thirds of Neptune is composed of a mixture of molten rock, water, liquid
ammonia and methane. The outer third is a mixture of heated gases comprised of
hydrogen, helium, water and methane. The atmospheric composition is 85%
Hydrogen, 13% Helium, and 2% methane. The planet's atmosphere, particularly
the outer layers, contains substantial amounts of methane gas. Absorption of
red light by the atmospheric methane is responsible for Neptune's deep blue
color. Neptune is a dynamic planet with several large, dark spots reminiscent of
Jupiter's hurricane-like storms. The largest spot, known as the Great Dark Spot,
is about the size of the earth and is similar to the Great Red Spot on Jupiter.
Neptune receives less than half as much sunlight as Uranus, but heat escaping
from its interior makes Neptune slightly warmer than Uranus. The heat liberated
may also be responsible for Neptune's stormier atmosphere, which exhibits the
fastest winds seen on any planet in the solar system. Most of the winds there
blow westward, opposite to the rotation of the planet. Near the Great Dark Spot,
winds blow up to 2,000 kilometers (1,200 miles) an hour. Voyager 2 found that
the winds averaged about 300 meters per second (700 miles/hour) in the planet's
atmosphere.

Long bright clouds, similar to cirrus clouds on Earth, were seen high in
Neptune's atmosphere. At low northern latitudes, Voyager captured images of
cloud streaks casting their shadows on cloud decks below.

Feathery white clouds fill the boundary between the dark and light blue regions
on the Great Dark Spot. The pinwheel shape of both the dark boundary and the
white cirrus suggests that the storm system rotates counterclockwise. Periodic
small scale patterns in the white cloud, possibly waves, are short lived and do
not persist from one Neptunian rotation to the next. (Courtesy NASA/JPL)

Until the Voyager 2 encounter in 1989, the rings surrounding Neptune were
thought to be arcs. We now know that the rings completely circle the planet, but
the thickness of each ring varies along its length. Neptune has a set of four
rings which are narrow and very faint. The rings are made up of dust particles
thought to have been made by tiny meteorites smashing into Neptune's moons.
From ground based telescopes the rings appear to be arcs but from Voyager 2 the
arcs turned out to be bright spots or clumps in the ring system. The exact
cause of the bright clumps is unknown. The magnetic field of Neptune, like that
of Uranus, is highly tilted at 47 degrees from the rotation axis and offset at
least 13,500 kilometers or 8,500 miles from the physical center. Comparing the
magnetic fields of the two planets, scientists think the extreme orientation may
be characteristic of flows in the interior of the planet and not the result of
that planet's sideways orientation or of any possible field reversals within the
planet. Neptune also has eight known satellites. Only two of these, Triton and
Nereid, had been observed prior to the Voyager 2 flyby. Triton is the largest
of the eight satellites and is almost as big as the Earth's Moon. The other
Neptunian satellites range in diameter from 58 to 416 km (36 to 258 miles).
Apart from Triton, the moons of Neptune are irregularly shaped and have very
dark surfaces.

Triton is the largest moon of Neptune, with a diameter of 2,700 kilometers
(1,680 miles). It was discovered by William Lassell, a British astronomer, in
1846 scarcely a month after Neptune was discovered. Triton is colder than any
other measured object in the Solar System with a surface temperature of -235° C
(-391° F). It has an extremely thin atmosphere. Nitrogen ice particles might
form thin clouds a few kilometers above the surface. The atmospheric pressure at
Triton's surface is about 14 microbars, 1/70,000th the surface pressure on Earth.
Triton is the only large satellite in the solar system to circle a planet in a
retrograde direction -- in a direction opposite to the rotation of the planet.
It also has a density of about 2.066 grams per cubic centimeter (the density of
water is 1.0 gram per cubic centimeter). This means Triton contains more rock
in its interior than the icy satellites of Saturn and Uranus do. The relatively
high density and the retrograde orbit has led some scientists to suggest that
Triton may have been captured by Neptune as it traveled through space several
billion years ago. If that is the case, tidal heating could have melted Triton
in its originally eccentric orbit, and the satellite might even have been liquid
for as long as one billion years after its capture by Neptune. Triton is scarred
by enormous cracks. Voyager 2 images showed active geyser-like eruptions spewing
nitrogen gas and dark dust particles several kilometers into the atmosphere.





 

Other sample model essays:

Science Research Papers / Acid Rain
Acid Rain Within this past century, acidity of the air and acid rain have become recognized as one of the leading threats to our planet"s environment. No longer limited by geographic b...
Treating Anaphylaxix Research Paper Paramedic Procedures I - Fall 1996 11/3/96 In the emergency setting, anaphylaxis is a dangerous, life threatening condition that must be treated in an ...
Medicine / Tuberculosis
Tuberculosis Tuberculosis (TB) is an infectious disease caused by a germ (bacterium) called Mycobacterium tuberculosis. This germ primarily affects the lungs and may infect anyone at any ag...
Medicine / Tuberculosis
Tuberculosis TB is a disease that can cause a serious illness and can damage a person's organs. Every year more than 25,000 people in the U.S. are diagnosed with TB disease. That's only a...
U.S. Scourge Spreads South of The Border ____________________ A Written Final Project Presented to Professor Larry Herzog San Diego State University ____________________ MAS 355 The U...
Science Research Papers / Values
Values MATT HEALTH OCT. 21, 1996 Three important values that I hold, are hard work, family, and friendship. These are values that I think will make life better and easier for a per...
Science Research Papers / Vinegar
Vinegar Chris Nacey Writing 101 Final draft 2-19-1997 When I was a child, I spent a lot of time in the kitchen with my mother. She liked to cook and so did I. Because of this, I learne...
Science Research Papers / Vitamins
Vitamins In the early 20th century the discovery of vitamins began. Today there is a chance that there are some vitamins that are still undiscovered. The definition of vitamin is:...
Science Research Papers / Why Do Parents Abduct?
Why Do Parents Abduct? According to the U.S. Department of Justice, over 354,000 children are kidnapped by a parent each year in divorce custody disputes. Some of the children are rec...
Why Sex Education Should Be Taught In Schools Most America teenagers are sexually active and think nothing could ever happen to them. But, many of them are misinformed about the risks...
Experience with Dream Essay - Reliable and great customer service. Quality of work - High quality of work.
Browns Mills, New Jersey, United States
Dream Essay - Very reliable and great customer service. Encourage other to try their service. Writer 91463 - Provided a well written Annotated Bibliography with great deal of detail per the rubric.
Browns Mills, New Jersey, United States
it is always perfect
Frederick, Maryland, United States
The experience with Dream Essay is stress free. Service is excellent and forms various forms of communication all help with customer service. Dream Essay is customer oriented. Writer 17663 is absolutely excellent. This writer provides the highest quality of work possible.
Browns Mills, New Jersey, United States
Only competent & proven writers
Original writing — no plagiarism
Our papers are never resold or reused, period
Satisfaction guarantee — free unlimited revisions
Client-friendly money back guarantee
Total confidentiality & privacy
Guaranteed deadlines
Live Chat & 24/7 customer support
All academic and professional subjects
All difficulty levels
12pt Times New Roman font, double spaced, 1 inch margins
The fastest turnaround in the industry
Fully documented research — free bibliography guaranteed
Fax (additional info): 866-332-0244
Fax (additional info): 866-308-7123
Live Chat Support
Need order related assistance?—Click here to submit a inquiry
© Dreamessays.com. All Rights Reserved.
Dreamessays.com is the property of MEDIATECH LTD