Hubble image archive

Artist's View of Planets Transiting Red Dwarf Star in TRAPPIST-1 System

This illustration shows two Earth-sized worlds passing in front of their parent red dwarf star, which is much smaller and cooler than our sun. The planets, TRAPPIST-1b and TRAPPIST-1c, reside 40 light-years away. They are between 20 and 100 times closer to their star than Earth i...

Date
Jan 1, 2016
Mission
Hubble Space Telescope
Archive ID
hubblesite-images-2016-27-3774-image
By

This illustration shows two Earth-sized worlds passing in front of their parent red dwarf star, which is much smaller and cooler than our sun. The planets, TRAPPIST-1b and TRAPPIST-1c, reside 40 light-years away. They are between 20 and 100 times closer to their star than Earth is to the sun. Researchers think that at least one of the planets, and possibly both, may be within the star's habitable zone, where moderate temperatures could allow for liquid water on the surface. Hubble looked for evidence of extended atmospheres around both planets and didn't find anything. This leaves open the possibility the planets have thinner, denser atmospheres like Earth's.

Credits

Illustration: NASA, ESA, and G. Bacon (STScI);
Science: NASA, ESA, and J. de Wit (MIT)

Image Details

About The Object
Object NameTrappist-1 System, TRAPPIST-1, 2MASS J23062928-0502285
Object DescriptionExoplanet System
R.A. Position23h 6m 29.27s
Dec. Position-5° 2' 28.59"
ConstellationAquarius
Distance39 light-years (12 parsecs)
About The Data
Data DescriptionData were provided by the HST proposal : J. de Wit (MIT), M. Gillon and A. Burdanov (University of Liège, Belgium), A. Burgasser (UCSD), L. Delrez (University of Liège, Belgium), B.-O. Demory (U. Cambridge), E. Jehin (University of Liège, Belgium), S. Lederer (NASA/Johnson Space Center), N. Lewis (STScI), P. Magain (University of Liège, Belgium), and D. Queloz and A. Triaud (U. Cambridge). The science team also includes: V. Van Grootel (University of Liège, Belgium), C. Opitom (University of Liège, Belgium), D. Sahu (Indian Institute of Astrophysics), and D. Gagliuffi (UCSD).
InstrumentHST>WFC3/IR
Exposure DatesMay 4, 2016
FiltersGratings: G141 grism

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