2024 July 25 - NGC 7023: The Iris Nebula

In today's image, we see the Iris Nebula. This is an example of a reflection nebula which light from a hot star is scattered off of dust grains around the star. The blue color is because the blue light is more effectively scattered than red light would be.
This UA-cam channel is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: apod.nasa.gov/....
I also provide lecture videos to accompany the free OpenStax Astronomy textbook (openstax.org/d...) on another channel. They are avilable here: • OpenStax Video Lectures or through this channel: / @introductiontoastronomy
Note: All commentary is created by me and is not necessarily approved or sanctioned by APOD or NASA.