The mass of the newly formed star will determine its position on the main sequence.
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Given that a large sunspot, about 100X smaller than the Sun,…
Given that a large sunspot, about 100X smaller than the Sun, is about the same size as our planet, how many Earths could fit inside the Sun’s vast volume?
The absolute magnitude of a star is how bright it appears if…
The absolute magnitude of a star is how bright it appears if viewed from a distance of _______ light-years.
The largest moon in the solar system, bigger but not as mass…
The largest moon in the solar system, bigger but not as massive as Mercury, is:
The star’s __________ plays the major role in determining it…
The star’s __________ plays the major role in determining its main sequence position and luminosity.
Most naked-eye stars would fall to the bottom right on the H…
Most naked-eye stars would fall to the bottom right on the H-R diagram.
The Maunder Minimum refers to a period of sustained solar___…
The Maunder Minimum refers to a period of sustained solar__________ from 1645 until about 1715.
Hydrogen lines are strongest in class A stars.
Hydrogen lines are strongest in class A stars.
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.
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.