55 Cnc e · Asteria Star

Scientific overview

55 Cnc e is a super-earth orbiting 55 Cnc, completing an orbit every 0.7365 days, about 41 light-years from Earth. It was discovered in 2004 using the radial velocity method.

Host star

Copernicus

Spectral type

G8 V

Temperature

5,172 K

Mass

0.905 M☉

Planetary system — 55 Cnc system

View the 55 Cnc system (5 known planets).

Planet	Class	Radius (R⊕)	Period (d)	Distance (ly)
55 Cnc eRadial Velocity · 2004	Super-Earth	1.88	0.7365	41
55 Cnc bRadial Velocity · 1996	Gas giant	13.9	14.6516	41
55 Cnc cRadial Velocity · 2004	Gas giant	8.51	44.3936	41
55 Cnc fRadial Velocity · 2007	Gas giant	7.59	261	41
55 Cnc dRadial Velocity · 2002	Gas giant	13	4799	41

Discovery and detection

Detection method

Radial Velocity Method

Discovery year

2004

Knowledge connections

Child ofCopernicus
OrbitsCopernicus
Member of system55 Cnc system
Discovered by methodRadial Velocity Method
Catalogued inNASA Exoplanet Archive
Similar toSuper-Earth

Loading…