Exoplanet TOI 139 b

Exoplanet TOI 139 b orbits star TOI 139 that lies 138 light years away from the Sun. It weighs about 6.6 Earth masses and orbits its star much closer than Earth orbits Sun.

TOI 139 b

Exoplanet, sub-neptune

Star: TOI 139

Orbit around star: 11.07085 days

Basic characteristic

Mass: 6.6 M Earth

Size: 2.46 R Earth | 0.2 R Jupiter

Density: 2451 kg/m3 | 44 % Earth

Temperature: 561 K | 288 °C

Year of discovery: 2023 (transit)

Other designations of this exoplanet
Gaia DR3 6598814657249555328 b

TOI 139 system structure

Exoplanet TOI 139 b orbits star TOI 139, which has lower mass than Sun. It is the only known exoplanet orbiting this star


	TOI 139
		TOI 139 b	n/a	6.6 M⊕	2.5 R⊕	11.1 days

Comparison

When comparing to the Solar system planets, TOI 139 b has 45 % of mass of Uranus

	Mercury	Venus	Earth	Mars	Jupiter	Saturn	Uranus	Neptune
Mass	120.33	8.12	6.62	60.16	0.02	0.07	0.45	0.38
Size	6.42	2.59	2.46	4.64	0.22	0.27	0.62	0.65
Density	0.45	0.47	0.44	0.6	1.97	3.52	1.95	1.42
Temperature	1.28	0.76	1.95	2.7	3.44	4.22	7.19	7.79

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