Explains how astronomers measure the brightness of stars and calculate their distance from Earth. Stars are classified by the spectrums their light produces, and this real brightness in conjunction with the apparent brightness enables measurement - even of stars outside our own galaxy.
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How to watch
Collection
In ACMI's collection
Credits
Collection metadata
ACMI Identifier
006866
Language
English
Subject categories
Mathematics, Science & Technology → Astronomy
Mathematics, Science & Technology → Science
Sound/audio
Sound
Colour
Colour
Holdings
16mm film; Access Print (Section 1)