Exoplanet HD 189733B Orbiting Its Yellow-Orange Star (image) NASA/Goddard Space Flight Center Share Print E-Mail Caption This artist's concept shows exoplanet HD 189733b orbiting its yellow-orange star, HD 189733. NASA's Hubble Space Telescope measured the actual visible-light color of the planet, which is deep blue. Credit NASA, ESA, and G. Bacon (STScI) 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.