In
the summer of 1989, NASA's Voyager 2 became the first spacecraft
to observe the planet Neptune, its final planetary target.
Passing about 4,950 kilometers (3,000 miles) above Neptune's
north pole, Voyager 2 made its closest approach to any planet
since leaving Earth 12 years agao. Five hours later, Voyager
2 passed about 40,000 kilometers (25,000 miles) from Neptune's
largest moon, Triton, the last solid body the spacecraft
will have an opportunity to study.
For
a fact sheet on Neptune science summary, click here.
Click
on the image for a larger view:
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Voyager
image of Neptune |
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Larger
version of neptune.gif |
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Neptune's
rings |
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Neptune's
Great Dark Spot |
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Neptune's
moon Triton |
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Parting
view of Neptune and moon Triton |
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False-color
image of Neptune. Red areas are semitransparent haze covering
planet. |
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Neptune's
Great Dark Spot, accompanied by white high-altitude clouds. |
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Cloud systems in Neptune's southern hemisphere. |
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Greak
Dark Spot. This storm system rotates counterclockwise. |
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High-altitude
cloud streaks in Neptune's atmosphere. |
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Two
views of satellite 1989N2. Dark, irregularly shaped moon
was discovered by Voyager 2. |
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Satellite
1989N1, discovered by Voyager 2. |
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Neptune's
ring system, shown in two exposures lasting nearly 10
minutes each. |
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Detail of Neptune's rings. |
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Bright Southern hemisphere on Triton. |
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View about 300 miles across of Triton's surface. |
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Triton
from 80,000 miles. Long feature is probably a narrow down-dropped
fault block. |
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Triton's
sough polar terrain. About 50 dark plumes mark what may
be ice volcanoes. |
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Triton from 25,000 miles. Depressions may be caused by
melting and collapsing of icy surface. |
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High-resolution color mosaic of Triton. |
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Triton just after closest approach. |
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Post-encounter
view of Neptune's south pole. |
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Neptune
and Triton 3 days after flyby. Triton is smaller crescent
and is closer to viewer. |