HD 153557 c · Asteria Star

Scientific overview

HD 153557 c is a mini-neptune orbiting HD 153557, completing an orbit every 15 days, about 59 light-years from Earth. It was discovered in 2022 using the radial velocity method.

Host star

HD 153557

Spectral type

K0

Temperature

4,837 K

Mass

0.79 M☉

Planetary system — HD 153557 system

View the HD 153557 system (3 known planets).

Planet	Class	Radius (R⊕)	Period (d)	Distance (ly)
HD 153557 bRadial Velocity · 2022	Mini-Neptune	4.77	7.299	59
HD 153557 cRadial Velocity · 2022	Mini-Neptune	4.36	15.2702	59
HD 153557 dRadial Velocity · 2022	Gas giant	11.9	40655	59

Discovery and detection

Detection method

Radial Velocity Method

Discovery year

2022

Knowledge connections

OrbitsHD 153557
Member of systemHD 153557 system
Discovered by methodRadial Velocity Method
Catalogued inNASA Exoplanet Archive

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