K2-18 c · Asteria Star

Scientific overview

K2-18 c is a mini-neptune orbiting K2-18, completing an orbit every 9 days, about 124 light-years from Earth. It was discovered in 2017 using the radial velocity method.

Host star

K2-18

Spectral type

M2.5 V

Temperature

3,457 K

Mass

0.359 M☉

Planetary system — K2-18 system

View the K2-18 system (2 known planets).

Planet	Class	Radius (R⊕)	Period (d)	Distance (ly)
K2-18 cRadial Velocity · 2017	Mini-Neptune	2.65	8.962	124
K2-18 bTransit · 2015	Super-Earth	2.37	32.9396	124

Discovery and detection

Detection method

Radial Velocity Method

Discovery year

2017

Discovered at

La Silla Observatory

Knowledge connections

OrbitsK2-18
Member of systemK2-18 system
Discovered by methodRadial Velocity Method
Discovered atLa Silla Observatory
Catalogued inNASA Exoplanet Archive

Loading…