Crescent Neptune and Triton
Channel: APOD YT
Date: 2023-05-27

Gliding through the outer Solar System, in 1989 the Voyager 2 spacecraft looked toward the Sun to find this view of most distant planet Neptune and its moon Triton together in a crescent phase.  The elegant image of ice-giant planet and largest moon was taken from behind just after Voyager's closest approach. It could not have been taken from Earth because the most distant planet never shows a crescent phase to sunward eyes. Heading for the heliopause and beyond, the spacecraft's parting vantage point also robs Neptune of its familiar blue hue.

Direct image/video url: https://apod.nasa.gov/apod/image/2305/neptunetriton_voyager_960.jpg

This can also be found at: https://apod.nasa.gov/apod/astropix.html
Image Credit & Copyright: N/A