This top image is of one-half of the Hubble Space Telescope field of view in the Sagittarius Window Eclipsing Extrasolar Planet Search (SWEEPS). The green circles identify 9 stars that are orbited by planets with periods of a few days. The bottom frame identifies one of two stars in the field where astronomers were able to spectroscopically measure the star´ back-and-forth wobble due to the pull of the planet. Credit: NASA, ESA, K. Sahu (STScI) and the SWEEPS science team
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