noaoann18015 — Announcement

44 Planets Beyond the Solar System

13 August 2018

Speckle imaging observations made at the WIYN telescope on Kitt Peak have been used, in combination with data from other facilities, to confirm the existence of 44 exoplanets. Four of the planets have orbital periods shorter than a day. Sixteen have sizes within twice that of the Earth. The graphic illustrates the planetary sizes and surface temperatures and compares their orbital radii to that of Mercury. The discoveries were made by a team that includes NOAO astronomer Mark Everett. The observations were acquired under the NN-EXPLORE program, a joint program of the NSF and NASA for the discovery and characterization of extrasolar planets.

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