Image: PIA19827-Kepler-SmallPlanets-HabitableZone-20150723

Description: PIA19827: Kepler's Small Habitable Zone Planets http://photojournal.jpl.nasa.gov/catalog/PIA19827 Of the 1,030 confirmed planets from Kepler, a dozen are less than twice the size of Earth and reside in the habitable zone of their host stars. In this diagram, the sizes of the exoplanets are represented by the size of each sphere. These are arranged by size from left to right, and by the type of star they orbit, from the M stars that are significantly cooler and smaller than the sun, to the K stars that are somewhat cooler and smaller than the sun, to the G stars that include the sun. The sizes of the planets are enlarged by 25 times compared to the stars. The Earth is shown for reference. NASA Ames manages Kepler's ground system development, mission operations and science data analysis. NASA's Jet Propulsion Laboratory in Pasadena, Calif., managed Kepler mission development. Ball Aerospace & Technologies Corp. in Boulder, Colo., developed the Kepler flight system and supports mission operations with JPL at the Laboratory for Atmospheric and Space Physics at the University of Colorado in Boulder. The Space Telescope Science Institute in Baltimore archives, hosts and distributes the Kepler science data. Kepler is NASA's 10th Discovery Mission and is funded by NASA's Science Mission Directorate at the agency's headquarters in Washington. More information about the Kepler mission is at http://www.nasa.gov/kepler. More information about exoplanets and NASA's planet-finding program is at http://planetquest.jpl.nasa.gov.
Title: PIA19827-Kepler-SmallPlanets-HabitableZone-20150723
Credit: http://photojournal.jpl.nasa.gov/jpeg/PIA19827.jpg
Author: NASA/Ames/JPL-Caltech
Usage Terms: Public domain
License: Public domain
Attribution Required?: No