In today's image, we see the Rosette Nebula. This is an example of an emission nebula that would normally glow red because of the emission of hydrogen gas. However, this is a narrowband image which looks at the light of three specific wavelengths and then maps them to the RGB colors. this allows us to see the detail in the gas in more detail than in other images.

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.