TRAPPIST-1c
Exoplanet | List of exoplanets | |
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Parent star | ||
Star | TRAPPIST-1[1] | |
Spectral type | M8[1][2]:1236 | |
Mass | (m) | 0.08 (± 0.009) (± 0.02)[1] M☉ |
Radius | (r) | 0.117 (± 0.004)[1] R☉ |
Temperature | (T) | 2550.0 (± 55.0)[1] K |
Age | 0.5[1] Gyr | |
Orbital elements | ||
Semi-major axis | (a) | 0.01522 (± 0.00055)[1] AU |
Eccentricity | (e) | 0.0[1] |
Orbital period | (P) | 2.421848 (± 2.8e-05)[1] Juliean d |
Inclination | (i) | 89.5 (± 0.31)[1]° |
Physical characteristics | ||
Radius | (r) | 0.09359 (± 0.0045) [1] RJ |
Discovery information | ||
Discovery date | May 2, 2016 | |
Discoverer(s) | ||
Discovery method | Transit | |
Discovery status | Published |
TRAPPIST-1c is an exoplanet orbiting around the ultracool dwarf star TRAPPIST-1 approximately 40 light-years away in the constellation Aquarius.
Habitability
During formation of the system it is possible that water loss during pre-HZ periods occurred.[3] Its estimated that TRAPPIST-1b and TRAPPIST-1c may have lost up to four Earth Oceans possibly compromising its habitability, however TRAPPIST-1d may have been able to keep enough liquid water to sustain life.[3]
Gallery
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Comparison between the Sun and the ultracool dwarf star TRAPPIST-1.jpg
This picture shows the Sun and the ultracool dwarf star TRAPPIST-1 to scale. The faint star has only 11% of the diameter of the Sun and is much redder in colour.
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TRAPPIST-1 and its three planets.jpg
This artist's impression shows an imagined view of the three planets orbiting an ultracool dwarf star.
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Artist’s impression of the ultracool dwarf star TRAPPIST-1 from close to one of its planets.ogv
This artist’s impression video shows an imagined view from close to one of the three planets orbiting an ultracool dwarf star just 40 light-years from Earth that were discovered using the TRAPPIST telescope at ESO’s La Silla Observatory. In this view one of the inner planets is seen in transit across the disc of its tiny and dim parent star. (4K Ultra HD Video)
References
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