HD 40307 b
Extrasolar planet in the constellation Pictor / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about HD 40307 b?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
HD 40307 b is an extrasolar planet orbiting the star HD 40307, located 42 light-years away in the direction of the southern constellation Pictor. The planet was discovered by the radial velocity method, using the European Southern Observatory's HARPS apparatus, in June 2008. It is the second smallest of the planets orbiting the star, after HD 40307 e.[1] The planet is of interest as this star has relatively low metallicity, supporting a hypothesis that different metallicities in protostars determine what kind of planets they will form.
Quick Facts Discovery, Discovered by ...
Discovery | |
---|---|
Discovered by | Mayor et al. |
Discovery site | La Silla Observatory, Chile |
Discovery date | 18 June 2008 |
radial velocity, using HARPS | |
Orbital characteristics | |
0.0468+0.0492 −0.0445[1] AU | |
Eccentricity | 0.20+0.25 −0.04[1] |
4.3115 ± 0.0006[2] d | |
Semi-amplitude | 1.94+2.25 −1.67[1] |
Star | HD 40307 |
Close