CITATION — REFERENCE ENTRY
unusual-1pct · raymond2020solarsystem
- Citation
- raymond2020solarsystem
- Claim ID
- unusual-1pct
- Assertion
- The Solar System is unusual at roughly the 1% level among Sun-like stars: about 10% of Sun-like stars have gas giants, and only about a tenth of those resemble Jupiter (beyond 2 AU, eccentricity below 0.1). At least 30–50% of main-sequence stars have close-in planets smaller than about 4 Earth radii, and fewer than 8% of planetary systems have their innermost planet on an orbit as wide as Mercury's.
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