Solar System Evolution and Anatomy

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Across
  1. 1. Type of planets found in the inner solar system
  2. 4. A giant planet composed mainly of elements heavier than hydrogen and helium, such as oxygen, carbon, nitrogen, and sulfur.
  3. 5. A natural satellite is an astronomical body that orbits a planet, dwarf planet, or small Solar System body
  4. 6. Trans-Neptunian Objects with a perihelion of more than 47.8 AU and named after a dwarf planet, Sedna
  5. 7. The symbols for the elements that make up 98% of the mass of the sun when it was formed in the presolar nebula
  6. 10. The Line that separates the region in the early solar system where rocky planets form and gas giants form
  7. 11. A large, rounded astronomical body that is neither a star nor its remnant
  8. 14. A vast cloud of icy planetesimals surrounding the Sun at distances ranging from 2,000 to 200,000 AU, outside of the heliosphere
  9. 16. The process in which matter accumulates in space to form something bigger
  10. 18. One of the official dwarf planets of our solar system
  11. 19. The Line The separates the region in the early solar system where gas giants form and ice giants form
  12. 21. A small planetary-mass object that is in direct orbit of a star, that does not meet the conditions to become a planet
  13. 23. Donut-shaped region in the Solar System, centered on the Sun and roughly spanning the space between the orbits of the planets Jupiter and Mars
  14. 24. The gravitationally bound system of the Sun and the objects that orbit it.
  15. 26. Type of planets found in the outer solar system
  16. 27. Objects that are further out than Neptune (abbreviation)
  17. 29. A giant planet composed mainly of hydrogen and helium
  18. 31. The Solar ______ Theory is the current accepted belief of how the solar system formed.
  19. 32. Collection of small, icy objects out in the far reaches of the Solar System. It begins at the outer edge of the Kuiper Belt ,50 AU, to approximately 110 AU
Down
  1. 2. A circumstellar disc in the outer Solar System, extending from the orbit of Neptune at 30 AU to approximately 50 AU from the Sun
  2. 3. The types of orbits that are used as evidence for how the solar system formed
  3. 4. Type of ratios found in asteroids that support the formation of the solar system
  4. 8. The boundary between our solar system and interstellar space
  5. 9. These objects have orbits whose points of closest approach to the Sun are sufficiently distant from the gravitational influence of any planet
  6. 12. The Late Heavy _________ is a time period in the early solar system identified by many asteroid impacts
  7. 13. The type of disk that forms around a star that will become a solar system
  8. 15. Objects that are the seeds of what will become planets
  9. 17. An icy, small Solar System body that warms and begins to release gases when passing close to the Sun
  10. 20. Any planet much larger than Earth
  11. 22. The elements whose isotope tells us that an explosion of a nearby star caused our solar system to form
  12. 25. A planet that is composed primarily of silicate rocks or metals.
  13. 28. The region of space, encompassing the solar system, in which the solar wind has a significant influence
  14. 30. Half asteroid, Half comet with erratic orbits