♪ ON-SCREEN: Two stars orbit each other inside the U Monocerotis system, a binary system with a large disk of dust and debris.
When one of the stars passes behind the disk from the Earth's perspective, it dims noticeably.
ON-SCREEN: Close-up of the primary star.
ON-SCREEN: Close-up of the secondary star. This star has a faint accretion disk and outflows at the top and bottom of the star.
ON-SCREEN: NASA logo