The Sun’s mass is over a million times that of the Earth.
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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.
Stars of the main sequence, like our own, are all converting…
Stars of the main sequence, like our own, are all converting __________ into helium.
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.
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:
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.
The absolute magnitude of the Sun is about __________ .
The absolute magnitude of the Sun is about __________ .
What is the meaning of the solar constant?
What is the meaning of the solar constant?
In what range of masses are most stars found?
In what range of masses are most stars found?
From hottest to coolest, the seven letters for the star type…
From hottest to coolest, the seven letters for the star types are __________ .