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The Sun’s mass is over a million times that of the Earth.

The Sun’s mass is over a million times that of the Earth.

Published August 13, 2024
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The nearest star system to our Sun, Alpha Centauri, is still…

The nearest star system to our Sun, Alpha Centauri, is still over a parsec distant.

Published August 13, 2024
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Stars of the main sequence, like our own, are all converting…

Stars of the main sequence, like our own, are all converting __________ into helium.

Published August 13, 2024
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If a binary is detected by periodic shifts in its spectral l…

If a binary is detected by periodic shifts in its spectral lines, it is a __________ binary.

Published August 13, 2024
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On the H-R diagram, the bright blue stars that dominate the…

On the H-R diagram, the bright blue stars that dominate the naked-eye sky lie:

Published August 13, 2024
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Combining a star’s proper motion and its distance allows us…

Combining a star’s proper motion and its distance allows us to determine its transverse velocity.

Published August 13, 2024
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The absolute magnitude of the Sun is about __________ .

The absolute magnitude of the Sun is about __________ .

Published August 13, 2024
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What is the meaning of the solar constant?

What is the meaning of the solar constant?

Published August 13, 2024
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In what range of masses are most stars found?

In what range of masses are most stars found?

Published August 13, 2024
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From hottest to coolest, the seven letters for the star type…

From hottest to coolest, the seven letters for the star types are __________ .

Published August 13, 2024
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