TRAPPIST-1 e

Exoplanet, rocky planet

Star: TRAPPIST-1

Distance from the star: 0.02817 AU

Orbit around star: 6.099615 days

Basic characteristic

Mass: 0.7 M Earth

Size: 0.918 R Earth | 0.1 R Jupiter

Density: 4932 kg/m3 | 89 % Earth

Temperature: 251.3 K | -22 °C

Year of discovery: 2017 (transit)

Other designations of this exoplanet
2MASS J23062928-0502285 e, 2MASSI J2306292-050227 e, 2MASSW J2306292-050227 e, 2MUDC 12171 e, K2-112 e, TIC 278892590 e, WISEA J230630.02-050234.1 e, EPIC 200164267 e

Comparison

When comparing to the Solar system planets, TRAPPIST-1 e has 85 % of mass of Venus and it orbits its star closer than Mercury orbits the Sun.

	Mercury	Venus	Earth	Mars	Jupiter	Saturn	Uranus	Neptune
Mass	12.58	0.85	0.69	6.29	0	0.01	0.05	0.04
Size	2.4	0.97	0.92	1.73	0.08	0.1	0.23	0.24
Density	0.91	0.94	0.89	1.21	3.96	7.08	3.92	2.85
Distance	0.07	0.04	0.03	0.02	0.01	0	0	0
Temperature	0.57	0.34	0.87	1.21	1.54	1.89	3.22	3.49

TRAPPIST-1 system structure

Exoplanet TRAPPIST-1 e orbits star TRAPPIST-1, which has much lower mass than Sun. It is one of 7 known exoplanets orbiting this star.

TRAPPIST-1
	TRAPPIST-1	n/a			-
	TRAPPIST-1 b	0.01 AU	0.9 M⊕	1.1 R⊕	1.5 days
	TRAPPIST-1 c	0.02 AU	1.4 M⊕	1.1 R⊕	2.4 days
	TRAPPIST-1 d	0.02 AU	0.4 M⊕	0.8 R⊕	4 days
	TRAPPIST-1 e	0.03 AU	0.7 M⊕	0.9 R⊕	6.1 days
	TRAPPIST-1 f	0.04 AU	0.7 M⊕	1 R⊕	9.2 days
	TRAPPIST-1 g	0.05 AU	1.3 M⊕	1.1 R⊕	12.4 days
	TRAPPIST-1 h	0.06 AU	0.3 M⊕	0.8 R⊕	20 days