Animation of Binary Stars in Planetary Nebula M3-1 (video) Royal Astronomical Society Share Print E-Mail Loading video... Caption An animation to scale of the two stars in orbit around each other. Their combined brightness varies depending on whether both are visible, or one or the other is eclipsed by its companion. Credit David Jones - IAC Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.