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  2. S T A R G A Z I N G
  3. Introduction Ancient people were fascinated by stars. They created stories about stars, and they were figured heavily in their religions. Stars were also used as guides by sailors for navigation, and to mark time and the seasons, including when to sow seeds and harvest crops. Today, observing stars is an activity both scientists and common people enjoy.
  4. Using your imagination, try to connect these dots to form different patterns. What patterns did you form?
  5. Pre-Assessment Activity (by group) CONSTELLATIONS I. Fill in the boxes with ideas you have about constellations. You may add more boxes if necessary.
  6. II. Find and circle the following terms in the word grid below. Astrology Celestial Equator Celestial Sphere Constellations Horizon Meridian Milky way Zenith Textbook pp. 281-282
  7. The assigned representative will be the one to submit the output of the group. 1 output ONLY per group.
  8. The Milky Way Galaxy A large spiral galaxy that holds over 100 billion stars. It is a flat disk with spiral arms and a bright central bulge called nucleus. Its disk is about 100 000 light-years wide and about 10 000 light-years thick at nucleus. Located about 2/3 from the center of the Milky Way is – our Solar System. Milky Way is a member of a cluster of about 25 galaxies known as the Local groups. Orbiting it are 2 small galaxies known as the Magellanic Clouds.
  9. To know more about the Milky Way Galaxy, let us watch this video.
  10. The Local Sky The sky that you see from where you stand. The boundary where Earth’s surface meets the sky. The imaginary semicircle stretching from your horizon due south, through your zenith, through your horizon due north. The point directly above you.
  11. The Celestial Sphere It is an imaginary sphere of infinite radius with Earth at its center. All stars are assumed to be inside this sphere, creating a practical tool for locating stars. The sun traces a path on the celestial sphere called the Ecliptic.
  12. To know more about the Celestial Sphere, let us watch this video.
  13. Review Questions 1. Describe a Local Sky? 2. Draw the Local Sky showing its horizon, zenith, and meridian. 3. Describe a Celestial Sphere. 4. Compare and contrast the geographic coordinates on Earth from those on the celestial sphere.
  14. Apparent Motion of Stars Explore Activity 4A (pp. 286-287) On a clear night, locate and observe any constellation in the sky. Note its position in relation to a tree or any tall object nearby. Then, illustrate what you have observed based on your reference point. Include the reference in your drawing.
  15. Guide Questions: 1. What did you observe about the relative position of the constellation during the 2 different times you observed it. 2. Did the constellation move across the sky? 3. What did you observe about the shape of the constellation? Did it change? Date of Submission:
  16. Do stars really move?
  17. Constellations ❏ These are groups of stars that form patterns in the sky. ❏ They are imaginary shapes drawn unto the celestial sphere. ❏ They organize stars into easily identifiable groups.
  18. To know more about the Constellations, let us watch this video.
  19. Zodiac Constellations As the sun traces the ecliptic, it appears to move against a background of constellations called - the Zodiac Constellations. The Major Zodiac Constellations are: ● Capricorn, Aquarius, Pisces, Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, and Sagittarius.
  20. Review Questions 1. What are zodiac constellations? 2. How many zodiac constellations are there? What are they?
  21. Beliefs and Practices about Astrology Astronomy ❏ It is the scientific study of celestial objects and phenomena. Astrology ❏ It is a system of beliefs and methods of calculation that attempts explain human affairs and predict future events.
  22. Beliefs and Practices about Astrology Explore Activity 4A (pp. 289-290) 1. Conduct a short survey of 4 individuals who belong to the given age range. ❏ Respondent 1: 7-21 years old ❏ Respondent 2: 22-36 years old ❏ Respondent 3: 37-51 years old ❏ Respondent 4: 52-70 years old
  23. 2. Then, ask them the questions below: ❏ Do you know of any beliefs and practices about astrology? Which of these, if any, do you believe or follow them? ❏ Do you think astrology has something to do with or could affect your life? If you do, how do you think it affects your life? Respondent Question 1 Question 2 1 2 3 4 You
  24. Group 1 Group 2 Group 3 Dy Belleza Pablo Cu Macaraig * Larrauri, Kathleen Licuanan Deol Rey Lirag Manubay Hernandez Oba Jimenez * Dhanoa Tolentino Mustera Baynosa Poon Jill Nacional Larrauri, Kristine Nieves Sabroso Montefalco Uy Oquindo * Bonafe Wong Grajo Yee Concepcion Borromeo Ung Yao Eloreta Ramos