Introduction To Astronomy And Cosmology -

A logarithmic scale used to measure the brightness of celestial bodies.

Introductory astronomy bridges what we can see from Earth with the physical laws governing the cosmos. It is heavily focused on the interaction of light and gravity. 1. The Celestial Sphere and Coordinates Introduction to Astronomy and Cosmology

Methods like stellar parallax are used to calculate accurate distances to nearby stars. 2. Our Local Neighborhood (Solar System) Introduction to Astronomy | JHU CTY A logarithmic scale used to measure the brightness

While often paired together, these two fields operate on entirely different scales of focus and methodology: imaginary grid rotating around the Earth.

We map the sky as a giant, imaginary grid rotating around the Earth.