AS101 Chapter Notes - Chapter 1: Scientific Modelling, Exoplanet, Supercluster
Document Summary
As101 chapter 1. 1: solar system to galaxy to universe. Learning objectives: mass and energy, astronomical objects, within the different levels of structure. The sun is our star: massive ball of glowing gas that generates energy through nuclear fusion (mostly hydrogen gas or vapour that is being smooshed together making energy, about 100x as wide as the earth. Indirect source of almost all energy on earth. Planets are less massive than stars (rules of a planet: 1. Non luminous and spherical (insert photos of planets: not glowing but still in a spherical shape, 2. Cleared the neighborhood of other objects: exoplanets, over 900 planets confirmed to be orbiting other stars, thousands of candidate exoplanets, observed by the kepler space. An object in orbit around a planet. Natural satellites are also known as moons : asteroid: a small, rocky object orbiting a star.
