Solar Dynamics Observatory Launch, Feb 11, 2010 HD SHORT VERSION WITH SLOW MOTION A sun dog is a prismatic bright spot in the sky caused by sun shining through ice crystals. The Atlas V rocket exceeded the speed of sound in this layer of ice crystals, making the shock wave visible from the ground. The announcer can be heard in the video saying, “The vehicle is now supersonic.”
Sources:
- Sonic Boom Meets Sun Dog Slow Mo Short posted by beachton (2020-02-16), https://youtu.be/Qvc6c7E-UF4?si=cLw-QlGywIJN1xIz
