Kepler-90 MultiExoplanet System - 20171214
Autor:
NASA/Ames Research Center/Wendy Stenzel
Krótki link:
źródło:
Wymiary:
1041 x 586 Pixel (54948 Bytes)
Opis:
December 14, 2017
Kepler-90 Planets Orbit Close to Their Star
https://www.nasa.gov/image-feature/ames/kepler-90-planets-orbit-close-to-their-star
Kepler-90 system planet orbits, compared to planetary orbits in our solar system
Kepler-90 is a Sun-like star, but all of its eight planets are scrunched into the equivalent distance of Earth to the Sun. The inner planets have extremely tight orbits with a “year” on Kepler-90i lasting only 14.4 days. In comparison, Mercury’s orbit is 88 days. Consequently, Kepler-90i has an average surface temperature of 800 degrees Fahrenheit, and is not a likely place for life as we know it. The structure of the Kepler-90’s system hints that the eight planets around Kepler-90 may have formed more spread out, like the planets in our own solar system, and then somehow migrated to the orbits we see them in today.
Licencja:
Public domain
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