Astr 1830 - Study guides, Class notes & Summaries

1 Parsec in Astronomical Units - ️️206 265 AU 2.06x10^5 AU 1 Parsec in km - ️️3.09x10^13km 1 Parsec in Lightyears - ️️3.26ly absorbtion line spectrum - ️️Light from a hot body goes through cooler transparent gas (prism); Viewed as a full spectrum with black lines where certain wavelengths of light were absorbed by the cloud Angular diameter - ️️angle between both ends of an object in relation to observation from another object (sun & moon have similar angular diameters ...