1. Constellations

2. I. Constellations A. A constellation is typically thought of as a collection of ____________ named after _______________, ______________ or _______________. B. In modern astronomy, a constellation is defined as a specific ___________ of the sky as determined by the International Astronomical Union (IAU). C. The celestial sphere is divided into _______ contiguous regions know as constellations. II. Ecliptic: Over the course of a year, the _________ changes its relative position in the sky against the background stars. This is due to the orbital motion of the Earth. The yearly _________ the Sun takes across the sky is called the ecliptic. III. Zodiac Constellations: The ____________passes through _______ of the 88 constellations. These particular constellations are called the zodiac constellations.

3. I. Constellations starsan animala person an object A. A constellation is typically thought of as a collection of ____stars____ named after ____an animal____, ____a person____ or ___ an object ____. B. In modern astronomy, a constellation is defined as a specific ___________ of the sky as determined by the International Astronomical Union (IAU). C. The celestial sphere is divided into _______ contiguous regions know as constellations. II. Ecliptic: Over the course of a year, the _________ changes its relative position in the sky against the background stars. This is due to the orbital motion of the Earth. The yearly _________ the Sun takes across the sky is called the ecliptic. III. Zodiac Constellations: The ____________passes through _______ of the 88 constellations. These particular constellations are called the zodiac constellations.

4. List of the constellations - Wikipedia

5. I. Constellations starsan animala person an object A. A constellation is typically thought of as a collection of ____stars____ named after ____an animal____, ____a person____ or ___ an object ____. area B. In modern astronomy, a constellation is defined as a specific ____area____ of the sky as determined by the International Astronomical Union (IAU). C. The celestial sphere is divided into _______ contiguous regions know as constellations. II. Ecliptic: Over the course of a year, the _________ changes its relative position in the sky against the background stars. This is due to the orbital motion of the Earth. The yearly _________ the Sun takes across the sky is called the ecliptic. III. Zodiac Constellations: The ____________passes through _______ of the 88 constellations. These particular constellations are called the zodiac constellations.

6. I. Constellations starsan animala person an object A. A constellation is typically thought of as a collection of ____stars____ named after ____an animal____, ____a person____ or ___ an object ____. area B. In modern astronomy, a constellation is defined as a specific ____area____ of the sky as determined by the International Astronomical Union (IAU). 88 C. The celestial sphere is divided into __88___ contiguous regions know as constellations. II. Ecliptic: Over the course of a year, the _________ changes its relative position in the sky against the background stars. This is due to the orbital motion of the Earth. The yearly _________ the Sun takes across the sky is called the ecliptic. III. Zodiac Constellations: The ____________passes through _______ of the 88 constellations. These particular constellations are called the zodiac constellations.

8. I. Constellations starsan animala person an object A. A constellation is typically thought of as a collection of ____stars____ named after ____an animal____, ____a person____ or ___ an object ____. area B. In modern astronomy, a constellation is defined as a specific ____area____ of the sky as determined by the International Astronomical Union (IAU). 88 C. The celestial sphere is divided into __88___ contiguous regions know as constellations. II. Ecliptic: Over the course of a year, the _________ changes its relative position in the sky against the background stars. This is due to the orbital motion of the Earth. The yearly _________ the Sun takes across the sky is called the ecliptic. III. Zodiac Constellations: The ____________passes through _______ of the 88 constellations. These particular constellations are called the zodiac constellations.

9. I. Constellations starsan animala person an object A. A constellation is typically thought of as a collection of ____stars____ named after ____an animal____, ____a person____ or ___ an object ____. area B. In modern astronomy, a constellation is defined as a specific ____area____ of the sky as determined by the International Astronomical Union (IAU). 88 C. The celestial sphere is divided into __88___ contiguous regions know as constellations. Sun path II. Ecliptic: Over the course of a year, the ___Sun____ changes its relative position in the sky against the background stars. This is due to the orbital motion of the Earth. The yearly __ path ___ the Sun takes across the sky is called the ecliptic. III. Zodiac Constellations: The ____________passes through _______ of the 88 constellations. These particular constellations are called the zodiac constellations.

10. Ecliptic

11. I. Constellations starsan animala person an object A. A constellation is typically thought of as a collection of ____stars____ named after ____an animal____, ____a person____ or ___ an object ____. area B. In modern astronomy, a constellation is defined as a specific ____area____ of the sky as determined by the International Astronomical Union (IAU). 88 C. The celestial sphere is divided into __88___ contiguous regions know as constellations. Sun path II. Ecliptic: Over the course of a year, the ___Sun____ changes its relative position in the sky against the background stars. This is due to the orbital motion of the Earth. The yearly __ path ___ the Sun takes across the sky is called the ecliptic. III. Zodiac Constellations: The ____________ passes through _______ of the 88 constellations. These particular constellations are called the zodiac constellations.

12. I. Constellations starsan animala person an object A. A constellation is typically thought of as a collection of ____stars____ named after ____an animal____, ____a person____ or ___ an object ____. area B. In modern astronomy, a constellation is defined as a specific ____area____ of the sky as determined by the International Astronomical Union (IAU). 88 C. The celestial sphere is divided into __88___ contiguous regions know as constellations. Sun path II. Ecliptic: Over the course of a year, the ___Sun____ changes its relative position in the sky against the background stars. This is due to the orbital motion of the Earth. The yearly __ path ___ the Sun takes across the sky is called the ecliptic. ecliptic13 III. Zodiac Constellations: The ___ecliptic____ passes through __13___ of the 88 constellations. These particular constellations are called the zodiac constellations.

13. Ecliptic

14. NameIAU Boundaries (2011) AriesApr 19 – May 14 TaurusMay 14 – Jun 21 GeminiJun 21 – Jul 21 CancerJul 21 – Aug 11 LeoAug 11 – Sep 17 VirgoSep 17 – Oct 31 LibraOct 31 – Nov 21 ScorpiusNov 21 – Nov 30 OphiuchusNov 30 – Dec 18 SagittariusDec 18 – Jan 21 CapricornusJan 21 – Feb 17 AquariusFeb 17 – Mar 21 PiscesMar 12 – Apr 19

15. IV. Polaris A. Another name for Polaris is the ___________________. B. During the course of the night, all the other stars appear to ______________ around Polaris due to the __________________. Polaris sits nearly directly above the Earth’s _______________. C. Polaris is useful for navigation. The angle between Polaris and the ______________ is equal to the observer’s ________________. The angle between Polaris and the horizon as observed from Essex Junction is 44.49 o. This means Essex Junction is at latitude _______________. D. At the equator, how far above the horizon would Polaris be? _______ E. At the North Pole, how far above the horizon would Polaris be? _____

16. IV. Polaris North Star A. Another name for Polaris is the ____North Star______. B. During the course of the night, all the other stars appear to ______________ around Polaris due to the __________________. Polaris sits nearly directly above the Earth’s _______________. C. Polaris is useful for navigation. The angle between Polaris and the ______________ is equal to the observer’s ________________. The angle between Polaris and the horizon as observed from Essex Junction is 44.49 o. This means Essex Junction is at latitude _______________. D. At the equator, how far above the horizon would Polaris be? _______ E. At the North Pole, how far above the horizon would Polaris be? _____

17. IV. Polaris North Star A. Another name for Polaris is the ____North Star______. rotateEarth’s rotation North Pole B. During the course of the night, all the other stars appear to ____rotate_____ around Polaris due to the ___Earth’s rotation___. Polaris sits nearly directly above the Earth’s ___North Pole____. C. Polaris is useful for navigation. The angle between Polaris and the ______________ is equal to the observer’s ________________. The angle between Polaris and the horizon as observed from Essex Junction is 44.49 o. This means Essex Junction is at latitude _______________. D. At the equator, how far above the horizon would Polaris be? _______ E. At the North Pole, how far above the horizon would Polaris be? _____

19. IV. Polaris North Star A. Another name for Polaris is the ____North Star______. rotateEarth’s rotation North Pole B. During the course of the night, all the other stars appear to ____rotate_____ around Polaris due to the ___Earth’s rotation___. Polaris sits nearly directly above the Earth’s ___North Pole____. C. Polaris is useful for navigation. The angle between Polaris and the ______________ is equal to the observer’s ________________. The angle between Polaris and the horizon as observed from Essex Junction is 44.49 o. This means Essex Junction is at latitude _______________. D. At the equator, how far above the horizon would Polaris be? _______ E. At the North Pole, how far above the horizon would Polaris be? _____

20. IV. Polaris North Star A. Another name for Polaris is the ____North Star______. rotateEarth’s rotation North Pole B. During the course of the night, all the other stars appear to ____rotate_____ around Polaris due to the ___Earth’s rotation___. Polaris sits nearly directly above the Earth’s ___North Pole____. horizon latitude 44.5 o C. Polaris is useful for navigation. The angle between Polaris and the ____horizon____ is equal to the observer’s _____ latitude _____. The angle between Polaris and the horizon as observed from Essex Junction is 44.5 o. This means Essex Junction is at latitude _____44.5 o _______. D. At the equator, how far above the horizon would Polaris be? _______ E. At the North Pole, how far above the horizon would Polaris be? _____

21. IV. Polaris North Star A. Another name for Polaris is the ____North Star______. rotateEarth’s rotation North Pole B. During the course of the night, all the other stars appear to ____rotate_____ around Polaris due to the ___Earth’s rotation___. Polaris sits nearly directly above the Earth’s ___North Pole____. horizon latitude 44.5 o C. Polaris is useful for navigation. The angle between Polaris and the ____horizon____ is equal to the observer’s _____ latitude _____. The angle between Polaris and the horizon as observed from Essex Junction is 44.5 o. This means Essex Junction is at latitude _____44.5 o _______. D. At the equator, how far above the horizon would Polaris be? _______ E. At the North Pole, how far above the horizon would Polaris be? _____ Polaris angle = latitude

22. IV. Polaris North Star A. Another name for Polaris is the ____North Star______. rotateEarth’s rotation North Pole B. During the course of the night, all the other stars appear to ____rotate_____ around Polaris due to the ___Earth’s rotation___. Polaris sits nearly directly above the Earth’s ___North Pole____. horizon latitude 44.5 o C. Polaris is useful for navigation. The angle between Polaris and the ____horizon____ is equal to the observer’s _____ latitude _____. The angle between Polaris and the horizon as observed from Essex Junction is 44.5 o. This means Essex Junction is at latitude _____44.5 o _______. 0 o D. At the equator, how far above the horizon would Polaris be? ___0 o __ E. At the North Pole, how far above the horizon would Polaris be? _____ Polaris angle = latitude

23. IV. Polaris North Star A. Another name for Polaris is the ____North Star______. rotateEarth’s rotation North Pole B. During the course of the night, all the other stars appear to ____rotate_____ around Polaris due to the ___Earth’s rotation___. Polaris sits nearly directly above the Earth’s ___North Pole____. horizon latitude 44.5 o C. Polaris is useful for navigation. The angle between Polaris and the ____horizon____ is equal to the observer’s _____ latitude _____. The angle between Polaris and the horizon as observed from Essex Junction is 44.5 o. This means Essex Junction is at latitude _____44.5 o _______. 0 o D. At the equator, how far above the horizon would Polaris be? ___0 o __ 90 o E. At the North Pole, how far above the horizon would Polaris be? _90 o _ Polaris angle = latitude