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The stars

Stellar distances and motions

QuestionAnswer
apparent magnitude tells us how bright a star "appears"
the brighter the star the lower the magnitude
the distance from the earth to the sun is called an Astronomical unit
the straight lin joining the points in space from which observe the baseline
astrometry the study of the positions of stars
The nearer stars seem to be slightly displaced respect to the farther stars when viewed from different locations in the earths orbit. True or False True
Scientist use how high of a resolution to pinpoint the postion of a small number of stars more accurately than was possible with Hipparcos very high resolution
Created by: Msmlb_93
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