NATS 1745 Study Guide - Final Guide: Nuclear Reaction, Red Color, Red Giant
9 May 2013
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What is the definition of a parsec? (note: the specific values in km aren"t necessary here). Light waves are composed of oscillating electric and magnetic energy fields: describe how a wave from a bright blue light source is different from a wave from a faint red light source. A wave from a bright blue source (high amplitude and short wavelength) Faint red light source (low amplitude and long wavelength) Any of various instruments used to analyze the component parts of a sample by separating its parts into a spectrum. What was their correct explanation for this, and what did it cause them to predict about the. 1868: lockyer discovered a new emission line in the sun"s atmosphere and named it helium (helios = How about the spectra of a gas cloud, a star cluster, and a gas/star system: star absorption lines and has continuum emission lines, gas cloud - emission-line nebulae.
