Slide 1Lecture 2 The distance scale Slide 2 Apparent magnitudes The magnitude system expresses fluxes in a given waveband X, on a relative, logarithmic scale: Note the…
Slide 1 Chapter 11c Surveying the Stars Slide 2 11.3 Star Clusters Our Goals for Learning What are the two types of star clusters? How do we measure the age of a star cluster?…
Slide 1 Chapter 21 Section 4 Star Systems And Galaxies. Done By Nick White And Gina Heath Slide 2 Star Systems And Clusters Our Solar System only has one star. That start…
PRESENTATION NAME Galaxies 1 Galaxies A galaxy is a large group of stars, dust, and gases. They come in variable sizes and shapes. The largest have over a trillion stars.…
PowerPoint Presentation Galaxies Galaxies are collections of stars (between 200 billion and 400 billion) that all rotate (orbit) around a massive central point. There are…
Galaxies GALAXIES Do Now Take a sheet of paper and answer the following questions. What are two kinds of visible light telescopes scientists use to gather information from…