1. Astronomy ≠ Astrology

2. Astrology
Nonscientific interpretation of stars and planets based on the premise that there is a relationship between astronomical phenomena and events in the human world.

3. Astronomy
The SCIENCE which studies celestial objects (such as stars, galaxies, planets, moons, asteroids, comets and nebulae).

4. Constellations

5. Defined
A constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU).

8. Do you see a warrior? A hunter?

9. Did you see this?

11. Example of Constellation

12. What’s this?

13. What does this look like?

18. Zodiac signs
No more important to Astronomers than the other 76 Constellations Their uniqueness is only because they exist as an “extension” of the ecliptic plane.

19. Dates of Aries Name Tropical zodiac (2011) Sidereal IAU Boundari es
Solar
stay
Brightest
star
Aries
21 March –
20 April
15 April –
15 May
19 April –
13 May
25 days
Hamal