007 CORPORAL ADMIRAL
AGAPITO S. NEPTUNE
NICK Q. NEPTUNE
TINO Q. NEPTUNE
JASON A. P
CHRIS L. A.
In Roman mythology, the name given to the Greek
sea god Poseidon, son of Cronus and Rhea, brother of Zeus
(Roman Jupiter) and Hades (Roman Pluto). He was
married to the granddaughter of the Titan Oceanus, the water
nymph Amphitrite, and was the father of Polyphemus, the Cyclops.
Neptune constantly hindered Odysseus' attempts to return home for
tricking and injuring Polyphemus.
helped the Greeks during the Trojan War. He is usually shown as
a bearded man holding a trident and standing in a shell-chariot being
drawn over the sea by dolphins. His festival, called the Neptunalia,
was celebrated by the Romans on July 23, when water was scarcest.
liked to surprise nymphs with monsters, and concocted the octopus, the
blowfish, and the seapolyp for their entertainment. He was revered by
those who lived near the sea and feared by inlanders as well, for his
floods reached far into the country. Poseidon provided bountiful
support to generations of sailors, but his mood could change in an
instant, producing terrible storms that would wreck fleets and drown
those venturing into the sea.
The eighth planet from the Sun and the fourth largest by diameter,
being smaller in diameter but larger in mass than Uranus. Its
equatorial diameter is 49,500 kilometers (30,760 miles) and if it were
hollow, it could contain nearly 60 Earths. Neptune is the outermost
planet of the gas giants, orbiting the Sun every 165 years and with a
day lasting 16 hours and 6.7 minutes.
was discovered on September 23, 1846 by Johann Gottfried Galle, of the
Berlin Observatory, and Louis d'Arrest, an astronomy student, through
mathematical predictions made by Urbain Jean Joseph Le Verrier, abd it
has eight moons, six of which were found by Voyager.
Hercules: The Wrath of Poseidon.
is a dynamic group consisting of two sets of brothers to form a
second-generation band. George and Mike Martinez are from Holland, MI;
Steve and Ernie Ortiz reside in Fennville, MI. Although all four members
were born and raised in the state of Michigan, they have become proficient in
the many styles of Mexican music. All four musicians have combined their
musical knowledge and talents to create the sound of Escorpion.
God Bless You,
band's numerous accomplishments include a recording contract with SoundMex
Records, distributed by Universal. Songs such as El Pajara
Loco, El Alacran, and fan-favorite, The Devil Went Down to Texas, have
brought recognition to Escorpion, and has given them the opportunity to
travel throughout the states of California, Florida, and Texas, as well as parts
God's blessings, Escorpion will return to the studios for another great
ride. We hope our music elevates everyone in the Mexican genre to another
level. Thanks to all our fans for your support. We love you and
couldn't do it without you.
Previously known as:
Neptune is the eighth planet from the
Sun and the fourth largest (by diameter). Neptune is smaller in diameter but
larger in mass than Uranus.
orbit: 4,504,000,000 km (30.06 AU) from Sun
diameter: 49,532 km (equatorial)
mass: 1.0247e26 kg
mythology Neptune (Greek: Poseidon) was the god of the Sea.
discovery of Uranus, it was noticed that its orbit was not as it should be in
accordance with Newton's laws.
It was therefore predicted that another more distant planet must be perturbing
Uranus' orbit. Neptune was first observed by Galle and d'Arrest on 1846 Sept 23
very near to the locations independently predicted by Adams and Le Verrier from
calculations based on the observed positions of Jupiter, Saturn and Uranus. An
international dispute arose between the English and French (though not,
apparently between Adams and Le Verrier personally) over priority and the right
to name the new planet; they are now jointly credited with Neptune's discovery.
Subsequent observations have shown that the orbits calculated by Adams and Le
Verrier diverge from Neptune's actual orbit fairly quickly. Had the search for
the planet taken place a few years earlier or later it would not have been found
anywhere near the predicted location.
More than two centuries earlier, in 1613, Galileo
observed Neptune when it happened to be very near Jupiter, but he thought it was
just a star. On two successive nights he actually noticed that it moved slightly
with respect to another nearby star. But on the subsequent nights it was out of
his field of view. Had he seen it on the previous few nights Neptune's motion
would have been obvious to him. But, alas, cloudy skies prevented obsevations on
those few critical days.
been visited by only one spacecraft, Voyager 2 on Aug 25 1989. Much of we know
about Neptune comes from this single encounter. But fortunately, recent
ground-based and HST observations have added a great deal, too.
Pluto's orbit is so eccentric, it sometimes crosses the orbit of Neptune making
Neptune the most distant planet from the Sun for a few years.
composition is probably similar to Uranus': various "ices" and rock
with about 15% hydrogen and a little helium. Like Uranus, but unlike Jupiter and
Saturn, it may not have a distinct internal layering but rather to be more or
less uniform in composition. But there is most likely a small core (about the
mass of the Earth) of rocky material. Its atmosphere is mostly hydrogen and
helium with a small amount of methane.
color is largely the result of absorption of red light by methane in the
atmosphere but there is some additional as-yet-unidentified chromophore which
gives the clouds their rich blue tint.
Like a typical
gas planet, Neptune has rapid winds confined to bands of latitude and large
storms or vortices. Neptune's winds are the fastest in the solar system,
reaching 2000 km/hour.
and Saturn, Neptune has an internal heat source -- it radiates more than twice
as much energy as it receives from the Sun.
At the time of
the Voyager encounter,
Neptune's most prominent feature was the Great Dark Spot
(left) in the southern
hemisphere. It was about half the size as Jupiter's Great Red Spot (about the
same diameter as Earth). Neptune's winds blew the Great Dark Spot westward at
300 meters/second (700 mph). Voyager 2 also saw a smaller dark spot in the
southern hemisphere and a small irregular white cloud that zips around Neptune
every 16 hours or so now known as "The Scooter" (right). It may be a
plume rising from lower in the atmosphere but its true nature remains a mystery.
Neptune (left) in 1994 show that the Great Dark Spot has disappeared! It has
either simply dissipated or is currently being masked by other aspects of the
atmosphere. A few months later HST discovered a new dark spot in Neptune's
northern hemisphere. This indicates that Neptune's atmosphere changes rapidly,
perhaps due to slight changes in the temperature differences between the tops
and bottoms of the clouds.
Neptune also has rings.
Earth-based observations showed only faint arcs instead of complete rings, but
Voyager 2's images showed them to be complete rings with bright clumps. One of
the rings appears to have a curious twisted structure (right).
and Jupiter, Neptune's rings are very dark but their composition is unknown.
rings have been given names: the outermost is Adams (which contains three
prominent arcs now named Liberty, Equality and Fraternity), next is an unnamed
ring co-orbital with Galatea, then Leverrier (whose outer extensions are called
Lassell and Arago), and finally the faint but broad Galle.
magnetic field is, like Uranus', oddly oriented and probably generated by
motions of conductive material (probably water) in its middle layers.
can be seen with binoculars (if you know exactly where to look) but a large
telescope is needed to see anything other than a tiny disk. There are several Web
sites that show the current position of Neptune (and the other planets) in
the sky, but much more detailed charts will be required to actually find it.
Such charts can be created with a planetarium
program such as Starry
Neptune has 12 known moons; 7 small named ones and Triton
plus three discovered in 2002 and one discovered in 2003 which have yet to be
Distance Radius Mass
Satellite (000 km) (km) (kg) Discoverer Date
--------- -------- ------ ------- ---------- -----
Naiad 48 29 ? Voyager 2 1989
Thalassa 50 40 ? Voyager 2 1989
Despina 53 74 ? Voyager 2 1989
Galatea 62 79 ? Voyager 2 1989
Larissa 74 96 ? Voyager 2 1989
Proteus 118 209 ? Voyager 2 1989
Triton 355 1350 2.14e22 Lassell 1846
Nereid 5509 170 ? Kuiper 1949
Ring (km) (km) aka
------- -------- ----- -------
Diffuse 41900 15 1989N3R, Galle
Inner 53200 15 1989N2R, LeVerrier
Plateau 53200 5800 1989N4R, Lassell, Arago
Main 62930 < 50 1989N1R, Adams
(distance is from Neptune's center to the ring's inner
More about Neptune and its satellites
- Neptune's magnetic field is off center and at a
large angle to its rotation axis. What processes in the interior generate
this oddly shaped field?
- What accounts for the relative lack of hydrogen and
helium in Neptune (and Uranus)?
- Why are Neptune's winds so strong in spite of the
fact that it is so far from the Sun and has a relatively weak internal heat
- What happened to the Great Dark Spot?
- Can we design a useful Neptune orbiter mission cheap enough to be funded?