Space Science Notes study notes for college and university students: the study of stars, planets, and other objects in space. Astronomers want to understand the universe and our planet’s.
Not only can distances, mass, volume, density, temperature be measured. In the Universe, the brightness of the stars, the declination, the wavelength and many other magnitudes are also measured. Let’s see what can be measured in the Universe and how it is measured. Measurements of the Universe, basic concepts Mass: is the amount of matter in an … Read more
The stars that can be observed in a clear night form certain figures that we call ” constellations “, and that serve to more easily locate the position of the stars. In total, there are 88 groupings of stars that appear in the celestial sphere and that take their name from religious or mythological figures, animals or … Read more
Since its origins, the human species has observed the sky . First, directly, then with increasingly powerful telescopes. Now with many electronic media. The ancient civilizations grouped the stars into figures. Our constellations were invented in the eastern Mediterranean about 2,500 years ago. They represent animals and myths of the place and time. People believed that the bodies of heaven influenced the … Read more
The Universe is everything, without exceptions. Matter, energy, space and time, everything that exists is part of the Universe. It is also called Cosmos . The sciences that study it are several, especially two: astronomy and cosmology. The Universe is very large, but perhaps not infinite. If it were, there would be infinite matter in infinite stars, and it is not. On the … Read more
The planets of the Solar System are 9 and all have an almost spherical shape. According to the order of increasing distance from the Sun they are Mercury , Venus , Earth , Mars , Jupiter , Saturn , Uranus , Neptune and Pluto . Mercury, Venus, Earth and Mars are called inner planets while the others are called outer planets. All the planets are in motion. There are two types of motion: the rotational motion of the planet on … Read more
Comets: history, life cycle and names of stars, with in-depth analysis on cometary models and on the most famous of periodic comets, Halley’s Comet What you will learn The history of comets: from superstition to science The structure of comets and their classification What is the life cycle of comets How comets are named What … Read more
