2026 June 21 - Keogram: The Sky in 2025

In today's image, we see a keogram - an image put together from multiple all sky images taken every 15 seconds for an entire year. We can easily see daylight and darkness and how they change over the year.

My podcasts are available in video form through this YouTube Channel.

This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.

I welcome comments and suggestions about these podcasts. I can be reached here: wagnerastronomy@gmail.com

This work is licensed under a Creative Commons Attribution 4.0 International License.