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

In today's image, we see Neptune and its large moon Triton as timed by the Voyager 2 spacecraft back in 1989. Voyager 2 is the only spacecraft to have visited the outermost planet in the solar system. In order to see an object as a crescent, one needs to have traveled out beyond that object and be able to look back toward the Sun. 

This YouTube channel is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: https://apod.nasa.gov/apod/ap230527.html.

I also provide lecture videos to accompany the free OpenStax Astronomy textbook (https://openstax.org/details/books/astronomy/) on another channel. They are avilable here: https://www.youtube.com/playlist?list=PLMahwAGxKuWldeQ_qaIj8c0i7qbfyfLj4 or through this channel: https://www.youtube.com/channel/UCLXFGlTeF86MsI1HqBcuqKQ

Note: All commentary is created by me and is not necessarily approved or sanctioned by APOD or NASA.