Planets and Solar System

12345678910111213141516171819202122232425262728293031323334353637383940414243444546
Across
  1. 3. a large body of matter in orbit around the sun or a star
  2. 4. the act of rising to an important position or a higher level.
  3. 7. a celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such.
  4. 10. the action or process of moving
  5. 15. relating to or belonging to a planet or planets
  6. 19. An imaginary line is drawn around the earth equally distant from both poles, dividing the earth into northern and southern hemispheres
  7. 22. the angular distance of a point north or south of the celestial equator.
  8. 23. an optical instrument designed to make distant objects appear nearer
  9. 24. the point in the orbit of a planet, asteroid, or comet at which it is closest to the sun.
  10. 25. a small rocky body orbiting the sun.
  11. 26. a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.
  12. 27. an obscuring of the light from one celestial body by the passage of another between it
  13. 28. period of moderate tides when the sun and moon are at right angles to each other
  14. 29. the partially shaded outer region of the shadow cast by an opaque object.
  15. 30. the moon at any time after new moon and before full moon, so called because its illuminated area is increasing.
  16. 33. a regular oval shape, traced by a point moving in a plane so that the sum of its distances from two other points is constant
  17. 34. cosmic snowballs of frozen gases, rock, and dust that orbit the Sun.
  18. 36. having or representing the sun as the center
  19. 39. each of the four divisions of the year
  20. 42. have a progressively smaller part of its visible surface illuminated, so that it appears to decrease in size.
  21. 44. a kind of radiation including visible light, radio waves, gamma rays, and X-rays
  22. 45. the star around which the earth orbits.
  23. 46. the alternate rising and falling of the sea
Down
  1. 1. a unit of measurement equal to 149.6 million kilometers
  2. 2. the natural satellite of the earth
  3. 5. The force that attracts a body toward the center of the earth
  4. 6. a tide just after a new or full moon, when there is the greatest difference between high and low water.
  5. 8. the time or date at which the sun crosses the celestial equator
  6. 9. the fully shaded inner region of a shadow cast by an opaque object
  7. 11. a celestial body moving in an elliptical orbit around a star.
  8. 12. having or representing the earth as the center, as in former astronomical systems.
  9. 13. the collection of eight planets and their moons in orbit around the sun
  10. 14. an optical instrument designed to make distant objects appear nearer, containing an arrangement of lenses, or of curved mirrors and lenses, by which rays of light are collected and focused and the resulting image magnified.
  11. 16. an instance of revolving.
  12. 17. the angular distance of a place north or south of the earth's equator
  13. 18. the force of attraction between all masses in the universe
  14. 20. a meteor that survives its passage through the earth's atmosphere
  15. 21. a group of stars forming a recognizable pattern
  16. 31. a small body of matter from outer space that enters the earth's atmosphere
  17. 32. The point in the orbit of a planet, asteroid, or comet at which it is furthest from the sun.
  18. 35. an eclipse in which the sun is obscured by the moon.
  19. 37. the angular distance of a place east or west of the meridian
  20. 38. the movement caused within a fluid by the tendency of hotter and therefore less dense material
  21. 40. the action of rotating around an axis or center.
  22. 41. a blunt-ended surgical instrument used for exploring a wound or part of the body.
  23. 43. a fixed luminous point in the night sky which is a large, remote incandescent body like the sun.