Exoplanets

  1. Exoplanet Demographics and System Architecture
    1. Planetary Classification Schemes
      1. Mass-Based Classifications
        1. Terrestrial Planets
          1. Super-Earths
            1. Mini-Neptunes
              1. Gas Giants
                1. Brown Dwarf Companions
                2. Radius-Based Classifications
                  1. Earth-Sized Planets
                    1. Super-Earths
                      1. Sub-Neptunes
                        1. Neptune-Sized Planets
                          1. Jupiter-Sized Planets
                          2. Compositional Classifications
                            1. Rocky Planets
                              1. Ice-Rich Planets
                                1. Gas-Rich Planets
                                  1. Ocean Worlds
                                    1. Carbon Planets
                                    2. Thermal Classifications
                                      1. Hot Planets
                                        1. Warm Planets
                                          1. Temperate Planets
                                            1. Cold Planets
                                            2. Orbital Classifications
                                              1. Hot Jupiters
                                                1. Warm Jupiters
                                                  1. Cold Jupiters
                                                    1. Hot Neptunes
                                                      1. Ultra-Short Period Planets
                                                    2. Planetary System Architectures
                                                      1. Single vs. Multiple Planet Systems
                                                        1. Occurrence Statistics
                                                          1. Dynamical Stability
                                                            1. Formation Implications
                                                            2. System Compactness
                                                              1. Mutual Hill Sphere Separations
                                                                1. Dynamical Packing
                                                                  1. Resonant Chain Systems
                                                                  2. Orbital Resonances
                                                                    1. Mean Motion Resonances
                                                                      1. Resonant Chains
                                                                        1. Resonance Breaking
                                                                          1. Laplace Resonances
                                                                          2. Spin-Orbit Alignment
                                                                            1. Rossiter-McLaughlin Effect
                                                                              1. Stellar Obliquity Measurements
                                                                                1. Hot Jupiter Misalignments
                                                                                  1. Formation and Migration Implications
                                                                                  2. Circumbinary Planets
                                                                                    1. Detection Methods
                                                                                      1. Orbital Stability
                                                                                        1. Formation Challenges
                                                                                          1. Notable Examples

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                                                                                      4. Planetary Characterization and Properties

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                                                                                      6. Planet Formation and Evolution