2023 January 14 - Perihelion Sun 2023
Channel: APOD Podcast
Date: 2023-01-14

In today's image, we see our Sun imaged on January 4 which was the time of perihelion. Perihelion is the time in an orbit when an object (in this case, Earth) is closet to the Sun. While this is then we are closest to the Sun in our orbit, it has nothing to do with the changing seasons which are causes by the 23.5 degree tile of Earth on its rotational axis. 

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/ap230114.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.