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baherus [9]
2 years ago
14

Is the relationship between a main sequence star's b-v color value and luminosity a direct or inverse relationship?

Social Studies
1 answer:
blagie [28]2 years ago
6 0

The relationship between a main sequence star's b-v color value and luminosity is a direct relationship.

The Hipparcos satellite measures the distances between hundreds of thousands of stars. It measures the magnitude of each stars through two filters which are, a blue filter, yielding for B magnitude (for blue) and a greenish filter, yielding a V magnitude (for visual).

The difference between the B and V magnitude of star is (B-V) color , or sometimes just "color" in short. The wavelength of light where the star is related to the star's temperature, i.e., the hotter the star the more blue it is and the cooler the star the more red it is.

To learn more about Hipparcos satellite click here:

brainly.com/question/24198240

#SPJ4

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4 years ago
Which item is the best example of propaganda?
beks73 [17]
Hello,

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Reason:

The answer is option C because <span>propaganda is a biased or misleading nature its is mostly used to publicized a particularly cause or the point of view of a situation. Its not option A because even though is about a political campaign its still not biased. Its also not option B because propagandas is biased and the option says unbiased. Its also not option D because its a problem but its saying supporting each other.

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3 0
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