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bn:03385089n
Noun Concept
SYL
No term available
EN
The UBV photometric system, also called the Johnson system, is a photometric system usually employed for classifying stars according to their colors. Wikipedia
Relations
Sources
IS A
EN
photometric system
HAS PART
EN
B-V colour
EN
V band
EN
B band
HAS KIND
EN
UBV photometric system
DISCOVERER OR INVENTOR
Harold Johnson
William Wilson Morgan
USES
EN
V band
EN
B band

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