Astr 121 80 exam 1 - Study guides, Class notes & Summaries

A human being is the size of what kind of light? - ️️radio A neon light produces what kind of spectrum? - ️️emission spectrum A new planet Vulcan is discovered that is always on the opposite side of the Sun from the Earth. Which of the following is true - ️️its orbital period is 1 year it never transits the sun A planet has an angular size of 20 degrees. If the planet moves twice the distance away, its angular size will be - ️️10 degrees A rocket on a Hohmann orbit from Eart...