Vocab 3 Flashcards
1
Q
Variable
A
A quantity or condition that can be changed in an experiment
2
Q
Cepheid Variables
A
A class of giant, pulsating stars, whose brightness varies in a periodic
3
Q
Globular Cluster
A
A compact, spherical shaped cluster of stars that shares a common gravitational association
4
Q
Light Year
A
In astronomy, the unit of length used to measure distance i.e. the distance that light traveling in a vacuum covers in one year
5
Q
Red Shift
A
The shift toward the longer wavelength, or res section, of the spectrum
6
Q
Spectrum
A
The distribution of electromagnetic radiation from a radiant source spread out into wavelength or frequencies
