2MASS J00402129+6112490 b

Exoplanet, super-earth

Star: 2MASS J00402129+6112490

Distance from the star: 0.0285 AU

Orbit around star: 2.527093 days

Basic characteristic

Mass: 7.3 M Earth

Size: 2.18 R Earth | 0.2 R Jupiter

Density: 3896 kg/m3 | 71 % Earth

Temperature: 600 K | 327 °C

Year of discovery: 2023 (transit)

Other designations of this exoplanet
TIC 284441182 b, Karmn J00403+612 b, TOI-1470 b, 2MASS J0040+6112 b

2MASS J00402129+6112490 system structure

Exoplanet 2MASS J00402129+6112490 b orbits star 2MASS J00402129+6112490, which has lower mass than Sun. It is one of 2 known exoplanets orbiting this star.


2MASS J00402129+6112490
	2MASS J00402129+6112490 b	0.03 AU	7.3 M⊕	2.2 R⊕	2.5 days
	2MASS J00402129+6112490 c	0.11 AU	7.2 M⊕	2.5 R⊕	18.1 days

Comparison

When comparing to the Solar system planets, 2MASS J00402129+6112490 b has 50 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.

	Mercury	Venus	Earth	Mars	Jupiter	Saturn	Uranus	Neptune
Mass	133.09	8.98	7.32	66.55	0.02	0.08	0.5	0.43
Size	5.69	2.29	2.18	4.11	0.19	0.24	0.55	0.57
Density	0.72	0.74	0.71	0.96	3.13	5.59	3.1	2.25
Distance	0.07	0.04	0.03	0.02	0.01	0	0	0
Temperature	1.36	0.81	2.08	2.88	3.68	4.51	7.69	8.33

Habitability

Habitable zone of the star: 0.2 - 0.3 AU

The planet is too hot to sustain liquid water.