Chart: Transiting Planets
Caption: Real data of the planet transit of the star HD209458b taken by the Hubble Space Telescope. This is the best measurement of its kind to date. A transiting planet tells us the planetís radius directly. (There is a simulated graph of the brightness of the star, showing a sharp dip as the planet moves across the face of the star.) This information allows us to infer the planet's density and composition indirectly.
Source: Sara Seager
Speaker at NSF Funded The Universe From the Ground Up Astronomy Symposium
|Previous slide||Next slide||Back to first slide||View graphic version|