Mod. 2

• Astronomy


  The science of the universe outside of our planet
• Astronomy


  • Branch of physical science dealing with heavenly bodies
  • Has resulted in many practical inventions, ideas, including calendars, navigational techniques, laws of motion, engineering of products and an increased understanding of energy and weather
• Moon


  A natural object that orbits a larger object
• Eclipse


  When one celestial body such as a moon or planet moves into the shadow of another celestial body
• Solar eclipse


  A type of eclipse that occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the light from the Sun
• Lunar Phase


  One of the cyclically recurring apparent forms of the moon
• Lunar Phases


  • Gibbous
  • Crescent
  • Waxing
  • Waning
• Gibbous


  The figure of the moon that is more than half full, looking swollen on one side
• Crescent


  The figure of the moon that appears as a curve with pointy ends
• Waxing


  Growing; describes the moon when the illuminated portion is increasing
• Waning


  Shrinking; describes the moon when the illuminated portion is decreasing
• Planet


  In the solar system, a large round object that orbits the Sun and has cleared out most of the other objects in its orbit
• Solar System


  The Sun and all of the planets, comets, etc. that revolve around it
• Observations made by ancient astronomers even before the advent of telescopes

  1. Rising and setting of the Sun in the east and the west, respectively

  2. Point where the Sun rises and sets in the horizon varies in a year

  3. Phases of the moon

  4. Lunar eclipse

  5. Solar eclipse

  6. Daily and annual motion of the stars

  7. Planets Mercury, Venus, Mars, Jupiter, and Saturn