NASA Solarsystem Collection

Neptune and Triton

This dramatic view of the crescents of Neptune and Triton was acquired by Voyager 2 approximately 3 days, 6 and one-half hours after its closest approach to Neptune (north is to the right).

The encounter put the spacecraft on a couse plunging southward at an angle of 48 degrees to the plane of the ecliptic. This direction, combined with the current season of southern summer in the Neptune system, gives this picture its unique geometry.

The spacecraft was at a distance of 4.86 million kilometers (3 million miles) from Neptune when these images were taken so the smallest detail discernible is approximately 90 kilometers (56 miles). Color was produced using images taken through the narrow-angle camera's clear, orange and green filters. Neptune does not appear as blue from this viewpoint because the forward scattering nature of its atmosphere is more important than its absorption of red light at this high phase angle (134 degrees).

*Image Credit*: NASA

08.28.1989

Solar System Exploration

SSE

Space

NASA

National Aeronautics and Space Administration

JPL

Jet Propulsion Laboratory

Planets

Voyager

Voyager 2

Neptune

Jet Propulsion Laboratory

Triton

Jet Propulsion Laboratory (JPL)

08-28-1989

1989

SPD-SLRSY-2146

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