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Triton

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Triton
Neptune I
Triton ("TRY ton") is the seventh and by far the largest of Neptune's satellites: orbit: 354,760 km from Neptune diameter: 2700 km mass: 2.14e22 kg ...

 


Triton
This picture, taken by the Voyager 2 space probe, shows the southern hemisphere of Triton.
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Triton
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Triton
Related Category: Astronomy: General
(trt´n), in astronomy, innermost and largest of the eight known moons, or natural satellites, of Neptune.

Triton has a density of 2.05 g/cm³, and is probably about 25% , with the remainder being rocky material. It has a tenuous nitrogen atmosphere with small amounts of methane. Tritonian atmospheric pressure is only about 0.01 millibar.

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.

Triton, at 2,700 kilometres in diameter, is the seventh largest moon in the Solar System.

Triton
Triton is only a little smaller than our Moon and has the coldest surface in the solar system at just 38K or -235°C. The pictures of Triton returned by Voyager were probably the most exciting of the whole 12 year journey.

Triton
The inner satellite of Neptune, discovered by Lassell in 1846. It is larger than the Moon (R 2900 km), with an almost circular retrograde orbit of 5 days 21 hours.
Trojans ...

USS Triton , a U.S. Navy nuclear-powered radar picket submarine, was the first vessel to execute a submerged circumnavigation of the Earth, accomplishing this during her shakedown cruise in early 1960....
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USS Long Beach (CGN-9) ...

Triton, the biggest moon of Neptune.
Titan, a moon of Saturn.
The Only Two Moons With Atmospheres:
Titan, a moon of Saturn and Triton, a moon of Neptune.
Biggest Storm: ...

Triton, the biggest moon of .
Titan, a moon of .
The Only Two Moons With Atmospheres:
Titan, a moon of and Triton, a moon of .
Biggest Storm: ...

Triton has many black streaks on its surface that may be from volcanic venting of nitrogen heated to a gaseous state despite the very low temperatures by high internal pressures.

Triton is similar in size, density, and surface composition to the planet Pluto. It is thought to be a captured satellite, perhaps formed originally as an independent planet in the outer solar system.

Triton, the largest moon of the planet Neptune, appears to hover in front of the giant planet in this composite image. The Voyager 2 spacecraft snapped the two pictures in 1989.

Triton is by far the largest of Neptune's moons. Despite its large size, Triton probably did not form around Neptune. Scientists believe that Triton was captured by Neptune long ago. So where did this large world form?

Triton is massive enough to have achieved hydrostatic equilibrium, and would be considered a dwarf planet if it were in direct orbit about the Sun. Triton has a very unusual orbit that is circular but retrograde and inclined.

Triton is next (right), and is one of the strangest moons in the solar system. First, it is one of only three moons in the solar system that has an atmosphere (Jupiter's Io and Saturn's Titan are the other two).

Triton
The largest of Neptune's satellites. Triton has an atmosphere and is roughly the size of Earth's moon.

Triton. Before Voyager 2, astronomers knew Neptune had two moons, Triton and Nereid. With a surface temperature of -391 degrees, Triton was found by Voyager 2 to have a thin veneer of methane and nitrogen on top of water ice on its surface.

Triton rotates the opposite way it orbits, and is gradually getting closer to Neptune. In about 10 to 100 million years, the two bodies will collide, leaving Neptune with more rings than Saturn.

Triton's orbit is retrograde and inclined which suggests that the moon is actually a captured Edgeworth-Kuiper Belt ice body similar to Pluto and Charon.

Triton's surface activity is not just a thing of the past. As Voyager 2 passed the moon its cameras detected two great jets of nitrogen gas erupting from below the surface, rising several kilometers into the sky.

Triton: Neptune's moon. It has a retrograde orbit (orbits in the opposite direction to Neptune's rotation).
U
Ultraviolet: Electromagnetic radiation that is slightly higher frequency than the blue end of the visible spectrum.

Triton, compared to Earth's Moon
Name
(IPA English pronunciation key) Diameter
(km) Mass
(kg) Orbital radius (km) Orbital period (days) ...

Triton -- In Greek mythology, merman, half-man, half-fish. Son of Poseidon and Amphitrite.
trough -- A long linear depression.
Umbriel -- In Alexander Pope's poem "The Rape of the Lock", a "dusky, melancholy sprite".

What is Triton's problem? Why does it have activity? What do you need to have such action? HEAT! For the most part, little worlds shouldn't be hot unless something is heating them.

We think Triton may look quite a bit like Pluto, the most remote planet in the Solar System, but we have never been there. Even the Hubble Space Telescope is incapable of showing us much of tiny Pluto's surface.

TITAN and TRITON: In 1944, Gerard Kuiper discovered that Titan, the largest moon of Saturn, had an atmosphere. He detected the methane in Titan's atmosphere by studying its infrared emission.

Triton (NASA Thesaurus / NASA SP-7, 1965) One of the two satellites of the planet Neptune, with a diameter of about 4800 kilometers, orbiting at a mean distance of 354,000 kilometers.

NEPTUNE N_RINGS TRITON NEREID PROTEUS LARISSA or NEPTUNE N_RINGS TRITON NEREID PROTEUS LARISSA or NEPTUNE N_RINGS TRITON NEREID PROTEUS LARISSA
Other targets: ...

Triton, discovered 1846 (the same year Neptune was first observed), is the largest and the brightest with a diameter of 2705 km (slightly smaller than Earth's moon).

The largest and brightest is Triton, discovered in 1846, the same year Neptune was first observed. Triton, with a diameter of 2705 km (1680 mi), is only slightly smaller than earth's moon.

Voyager 2 found some of the most varied terrain in the Solar System, a thin atmosphere, and even evidence for ice volcanoes on Triton. The dark streaks seen in this image are material spread downwind from recent volcanic eruptions.

Neptune's Moon Triton
How Long is a Year on Neptune?
Weather on Neptune
Surface of Neptune
Pluto and Neptune
Uranus and Neptune
How Many Moons Does Neptune Have?
Neptunes Moons
How Long Does it Take Neptune to Orbit the Sun?

Triton
Nereid
Neptune is the eighth or, occasionally, the ninth planet from the Sun due to Pluto's eccentric orbit, and the outermost gas giant in our solar system.

Carbon dioxide ice has been found on Neptune's largest moon (Triton), the Martian polar caps, and two of Jupiter's moons. The dry ice on Ariel appears on the trailing side of the moon.

Voyager 2 departing Neptune and Triton, its high-gain antenna dish pointed toward the inner solar …[Credit: © Corbis] ...

It is possibly also the largest satellite in the Solar System (although Neptune's Triton may be proved to be larger). It is 20% larger than the planet Mercury and is known to have an atmosphere. [A84] ...

Science 250, 1990. Voyager 2 Triton encounter issue.
Smith, B. A.; Soderblom, L. A.; Banfield, D.; Barnet, C.; and Basilevksy, A. T. "Voyager 2 at Neptune: Imaging Science Results." Science 246, 1422-1449, 1989.

Neptune has eight known moons: Triton, Thalassa, Naiad, Despina, Galatea, Larissa, Proteus and Nereid.
Voyager 2 spacecraft visited Neptune on August 25, 1989.
Neptune was named after the Roman god of the sea.

Neptune's largest moon Triton is partly covered with nitrogen ice and snow, and has currently active nitrogen geysers that leave sooty deposits on the surface downwind.
Rings ...

William Lassell was an amateur English astronomer (a brewer by trade) who discovered Triton, the largest moon of Neptune (in 1846) and Ariel, the brightest moon of Uranus in 1851. With W.C. Bond, he discovered Saturn's moon Hyperion in 1848.

Some of the most intriguing science targets are: Pluto and the Kuiper Belt; Neptune and its frigid moon Triton; Saturn and its moons Titan and Enceladus; ...

These moons orbit their planet in the same direction that the planet orbits the sun, with the exception of Triton. This is known as a prograde orbit.

Ice volcanoes were first observed on Neptune's moon Triton during the Voyager 2 flyby. Indirect evidence of cryovolcanic activity has since been observed on several other icy moons of our solar system, including Europa, Ganymede, and Enceladus.

So far, eight moons have been discovered orbiting Neptune. They are (from nearest the planet to furthest): Naiad, Thalassa, Despina, Galatea, Larissa, Proteus, Triton and Nereid.

Retrograde motion 1. An actual motion contrary to the general direction of the bodies in the Solar System. An example of actual retrograde motion is Neptune's satellite Triton.

The Graeae were poorly qualified for the task, since they had only one eye between the three of them, which they passed to each other in turn. Perseus snatched the eye from them and threw it into Lake Tritonis.

1846 - William Lassell discovers Triton
1849 - Edouard Roche finds the limiting radius of tidal destruction and tidal creation for a body held together only by its self gravity, called the Roche limit, ...

Triton A satellite of Neptune orbiting at a mean distance of 354,000 kilometers. trochoid The path followed by a point in a diameter of a circle as the circle rolls along a straight line.

See also: Solar, Planet, Neptune, Orbit, Moon