Planet Neptune

The first four moons of Neptune, Naiad, Thalassa, Despina, and Galatea, are so close to Neptune that they orbit within its ring system. Little is known about them. The next one out, Larissa, was actually discovered in 1981, when it blocked a star. This was attributed to the ring arcs, but later was found to be the moon, being re-discovered by Voyager 2 in 1989. Proteus is the second-largest moon in orbit around Neptune. It is so close to the planet that Earth-bound telescopes cannot see it. 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). It is thicker than Io's, yet much thinner than Titan's. Its pressure is 1/100,000 of Earth's. Second, Triton has a retrograde orbit, which means that it orbits the opposite way the planet spins. This is a very strong indication that Triton was captured. This in itself is not strange; both of Mars' moons were captured. What is strange is that Triton is two-thirds the size of our moon. When two bodies have a close encounter, one does not automatically capture the other, especially if it is so big. One theory is that Triton must have actually hit Neptune, bounced off the atmosphere, and gone into orbit because it lost all of its momentum. Another way this could have happened is that Triton collided with one of Neptune's moons, smashed it to bits (possibly creating the rings), and lost so much momentum that it couldn't escape Neptune's gravity. Third, it is only 38 °C (100 °F) above absolute zero (the temperature at which all matter comes to rest). In such frigid a climate scientists did not expect to find active geysers. But, they did. They spew out a gaseous form of nitrogen, which is what creates its atmosphere. The eighth moon, Nereid, has a highly elliptical orbit that causes it to swing around Neptune at various distances. When closest, it is 1,342,530 km (834,210 miles) from the planet. At the farthest distance, it is 9,667,120 km (6,006,870 miles) from Neptune. The last five moons were discovered in the first few weeks of and throughout 2003. They have not yet been given official names by the International Astronomical Union. Very little is yet known about them.

Neptune's atmosphere is thick compared to Earth's atmosphere, composed mostly of hydrogen and helium with traces of methane. The high pressure in Neptune's atmosphere causes gases to compress into liquid and solid forms in its lower layers.

There is currently no evidence to suggest that Neptune harbors any life. The planet's extreme cold, lack of a solid surface, and harsh atmospheric conditions make it unlikely to support life as we know it.

== == In keeping with the tradition of planet names that stretched back to Roman times, planets are named for Roman gods. Dwarf planets are named according to deities in various pantheons. Neptune, god of the sea, was suggested by the blue color of the planet. Initially the French mathematician Urbain LeVerrier (who predicted its position) wanted to name it for himself, offering to adopt Herschel as the official name for Uranus, discovered 65 years earlier.

To a large extent, primarily the blue ones are.

Let's assume the question is about what planets are blue in colour.

Then the answer is:

Earth looks mainly blue from space, depending on cloud cover.

Uranus and Neptune are a sort of blue-green color.

Neptune has 14 known moons. The largest moon of Neptune is Triton, which was discovered in 1846, just 17 days after the planet itself was discovered.

A day on Neptune is 16 hours, 6 minutes and 36 seconds.

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No, Neptune is not capable of supporting life.

Neptune is a gas giant, which means it has no solid surface to stand on or support water. It also has an exposed core of molten rocks and ammonia, so if you tried to stand on Neptune, you'd sink into the planet and be incinerated.

Neptune also has the fiercest wind storms discovered so far in our solar system, which are capable of shredding life or flinging them into space. It is also absolutely freezing and has no breathable atmosphere.

A geyser is a natural phenomenon that features a gushing fountain of water and/or steam being emitted from a hole in the ground. Such eruptions often occur on a periodic basis. "Old Faithful," located in Yellowstone National Park in Wyoming, USA, is probably the most famous geyser on earth, but it is only one of over 500 active geysers in that park. Yellowstone holds roughly half of the active geysers known in the world.

Essentially, a geyser is formed when three ingredients come together in one place -- subterranean water, usually under pressure, magma, subterranean but close to the surface, and a "plumbing" structure to convey the steam and hot water to the surface. The water hits the magma, steam-driven pressure is formed, and the "plumbing" system carries the blast to the surface.

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Neptune is a gas giant and does not have a solid surface like Earth. Its atmosphere mainly consists of hydrogen, helium, and methane, with no solid ground to speak of. The visible features on Neptune are atmospheric storms, including the Great Dark Spot and other cloud formations.

The moon has been visible in the sky since ancient times, so it was not "discovered" in the traditional sense. Human civilizations have always been aware of the moon's presence in the night sky through observation. The understanding of the moon as a celestial body orbiting Earth has evolved over centuries through scientific observation and study.

Yes, Neptune does have seasons because Neptune has an irregular orbit around the sun. It also has a generous 28+ degree of axial tilt. Each season lasts 41 Earth years.

Well.... You see, It takes 8 Minutes for the Light from the sun to get to Earth.. the sun is 93,000,000 Miles away from us.. so what I will do is check how far away Saturn is from the sun and calculate And estimate about how long it takes...................................................................................................

It takes Approximately an Hour and ten minutes... Not as much as you think it would take And It may be more or less remember this is an estimate But its really close...

Hope this Helps

At first, Neptune was only the god of water, but later on this was extended to include the sea when he became associated with the Greek god Poseidon. If you want to know more just about any question i will answer it go to hotmail if u have one and add me baky2001@hotmail.com

Neptune's year, or the time it takes to orbit around the sun, is a little under 165 of our Earth years.

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The Triton volcano is located on Neptune's moon Triton, not on a moon of Neptune. Triton is the largest moon of Neptune and has a variety of geologic features, including cryovolcanoes that are believed to spew out icy materials instead of molten rock.

Uranus has 27 moons and Neptune has 13 moons

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The average temperature of Neptune is around -214 degrees Celsius (-353 degrees Fahrenheit). This extreme cold is due to Neptune's distance from the Sun and its thick atmosphere of hydrogen, helium, and methane gas, which trap heat and create a frigid environment.

It would take about 12-13 years for a spacecraft to reach Neptune from Earth using current propulsion technology. The exact time would depend on the speed of the rocket and the alignment of the planets for a gravity-assist maneuver.