Dark, cold & whipped by supersonic winds, Neptune is a hydrogen & helium gas giant in our solar system. Over 30 times as far from the sun as Earth, it takes almost 165 Earth years to orbit our sun. On Neptune, one "day" (time it takes to rotate once on its axis) takes 16 hours. It has 13 moons & 6 rings.

Dark, cold & whipped by supersonic winds, Neptune is a hydrogen & helium gas giant in our solar system. Over 30 times as far from the sun as Earth, it takes almost 165 Earth years to orbit our sun. On Neptune, one "day" (time it takes to rotate once on its axis) takes 16 hours. It has 13 moons & 6 rings.

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Concentric circular orbits with reference points, extrapolated perspective, and triangulation.

Concentric circular orbits with reference points, extrapolated perspective, and triangulation.

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Solar System Information Chart - Fast Facts about our Sun and the 8 planets plus the 5 "dwarf planets" Ceres, Pluto, Makemake, Haumea and Eris

Solar System Information Chart - Fast Facts about our Sun and the 8 planets plus the 5 "dwarf planets" Ceres, Pluto, Makemake, Haumea and Eris

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Astronomy fact 33 of 42 - It takes 165 years for Neptune to orbit the Sun, meaning it has only recently completed its first orbit since its discovery in 1846. ♥ Pin, share and comment. x

Astronomy fact 33 of 42 - It takes 165 years for Neptune to orbit the Sun, meaning it has only recently completed its first orbit since its discovery in 1846. ♥ Pin, share and comment. x

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Uranus is the only giant planet whose equator is nearly at right angles to its orbit. A collision with an Earth-sized object may explain Uranus鈥?unique tilt. Nearly a twin in size to Neptune, Uranus has more methane in its mainly hydrogen and helium atmosphere than Jupiter or Saturn. Methane gives Uranus its blue tint.

Uranus is the only giant planet whose equator is nearly at right angles to its orbit. A collision with an Earth-sized object may explain Uranus鈥?unique tilt. Nearly a twin in size to Neptune, Uranus has more methane in its mainly hydrogen and helium atmosphere than Jupiter or Saturn. Methane gives Uranus its blue tint.

New Horizons spacecraft crosses Neptune orbit en route to historic Pluto encounter

New Horizons spacecraft crosses Neptune orbit en route to historic Pluto encounter

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.

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The Milky Way Galaxy's Annual Meetings are underway, Modern Philosophers, and the big talk this year is about Pluto's attempt to get itself reinstated as a planet. My sources tell me that The Origi...

The Milky Way Galaxy's Annual Meetings are underway, Modern Philosophers, and the big talk this year is about Pluto's attempt to get itself reinstated as a planet. My sources tell me that The Origi...

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