Public domain
Kepler K2-138 System (Artist's Concept)
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
This artist concept shows K2-138, the first multi-planet system discovered by citizen scientists. The central star is slightly smaller and cooler than our Sun. The five known planets are all between the size of Earth and Neptune. Planet b may potentially be rocky, but planets c, d, e, and f likely contain large amounts of ice and gas. All five planets have orbital periods shorter than 13 days and are all incredibly hot, ranging from 800 to 1,800 degrees Fahrenheit.
NASA Image and Video Library’s own descriptionCredit lineKepler K2-138 System (Artist's Concept). NASA/JPL, 2018-01-11. Public domain. ID: PIA22088.