HR 8799 e · Asteria Star

Scientific overview

HR 8799 e is a gas giant orbiting HR 8799, completing an orbit every 20816 days, about 135 light-years from Earth. It was discovered in 2010 using the direct imaging.

Host star

HR 8799

Spectral type

A5

Temperature

7,400 K

Mass

1.51 M☉

Planetary system — HR 8799 system

View the HR 8799 system (4 known planets).

Planet	Class	Radius (R⊕)	Period (d)	Distance (ly)
HR 8799 eImaging · 2010	Gas giant	13.11	20816	135
HR 8799 dImaging · 2008	Gas giant	13	37000	135
HR 8799 cImaging · 2008	Gas giant	13	69000	135
HR 8799 bImaging · 2008	Gas giant	13	170000	135

Discovery and detection

Detection method

Direct Imaging

Discovery year

2010

Discovered at

W. M. Keck Observatory

Knowledge connections

OrbitsHR 8799
Member of systemHR 8799 system
Discovered by methodDirect Imaging
Discovered atW. M. Keck Observatory
Catalogued inNASA Exoplanet Archive

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