Contextualization

The universe, with its countless celestial bodies and phenomena, is a fascinating field of study. Since ancient times, humans have looked up at the sky and wondered about the movement of the stars - stars, planets, the Moon, the Sun - and how they affect life on Earth. In fact, our current understanding of the universe and its behavior is the result of centuries of observation, curiosity, and study.

Among the many interesting astronomical phenomena, the movement of the stars is particularly relevant. Knowing how and why the stars move helps us understand the structure of the universe, the measurement of time, and the change of seasons. Furthermore, it helps to understand different natural and celestial phenomena, such as the phases of the moon, eclipses, and tides.

However, the study of the movement of the stars is not only important for science. It also has practical applications in our daily lives. For example, maritime and aerial navigation, agriculture, astronomy, and even astrology are based on the movement of the stars.

Introduction

In our project, we will explore the wonderful world of the movement of the stars. Through a series of practical and theoretical activities, you will be able to understand the fundamental principles behind these phenomena.

The key concepts we will explore are: the Earth's rotation movement, the relationship between this movement and the apparent movement of the Sun and other stars in the sky, and the Earth's translation movement and its effects on the seasons. Additionally, we will understand how the Moon and the Sun affect life on Earth.

Feel free to explore the resources below to delve deeper into the topic:

• "The Sky That Surrounds Us" (Book, Elmo Alves);
• "The Universe: Astronomy Concepts" (Book, Ronaldo Mourão);
• Stellarium Web - An online real-time planetarium, where you can simulate the sky from different points on Earth and at different times of the year;
• "Cosmos: A Personal Voyage" (Documentary, Carl Sagan, available on Netflix);
• "Astrophysics for People in a Hurry" (Book, Neil deGrasse Tyson).