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Solar and lunar eclipse

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Solar and lunar eclipse

  1. 1. ECLIPSE ?
  2. 2. An eclipse is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passinginto the shadow of another body or by having another body pass between it and the viewer. An eclipse occurs at those times when the Moon moves into a position of direct alignment with the Sun and the Earth. There are two basic types of Eclipses SOLAR LUNAR
  5. 5. How To Safely View An Eclipse?Eye safety is very important to keep in mind whilewatching an eclipse. According to NASA, the bestways to observe and understand an eclipse includepinhole cameras or solar filters. Looking at aneclipse with “bare eyes” can cause retinal burns.The safest and most inexpensive method to viewan eclipse is pinhole projection.
  6. 6. How To Make A Pinhole Viewer?
  7. 7. 1. Start with a long box or tube (6 feet is preferable because the bigger the box, the bigger theimage),2. A piece of aluminum foil,3. A pin, like you would use for sewingand4. A sheet of blank white paper.Step 1: Next cut a hole in the center of one end of the box.Step 2: Tape the piece of foil over the hole.Step 3: Poke a small hole in the foil with the pin.Step 4: Cut a viewing hole in the side of the box,Step 5: Place the piece of white paper inside the box, near the viewing hole.Step 6: Point the pinhole end of the box at the eclipse and keep your eye on the white paper.Remember: dont look directly at the sun! You could get really hurt!
  8. 8. References: Internetwww.youtube.com -http://www.youtube.com/watch?v=E1B3RLf1A1shttp://www.youtube.com/watch?v=wuhNZejHeBgwww.wikipedia.com Living Science- Course Book- Class VI