What are some celestial objects or events?
Planets, Moons, Comets, Stars, interstellar dust, galaxies, planetary nebula, globular clusters, quasars, white dwarfs, black holes, supernova, the big bang, Red Giants, Asteroids, etc. Fig. 1.COb: Fig. 1.COb Slide6: Motion is always relative, something is moving with respect to something else. Example: the boat and the pier. Slide7: The Night Sky To human cultures both past and present everywhere across the earth, the stars formed imaginary patterns, some of those patterns have been passed down to us (mostly from Greek and Roman cultures). Today we have 88 such patterns, called CONSTELLATIONS. Some are familiar: Orion, Perseus, Andromeda, and Gemini, and some are not so familiar: Delphinus, Dorado, Camelopardalis, and Ophiuchus. Fig. 1.01: Fig. 1.01 Fig. 1.01a: Fig. 1.01a Fig. 1.01b: Fig. 1.01b Fig. 1.02: Fig. 1.02 Fig. 1.02a: Fig. 1.02a Slide13: Stars that form these patterns or constellations are physically very far from each other and only appear close together from our vantage poi