Answer:
The most likely explanation is that the star is a member of an eclipsing binary star system.
Explanation:
An eclipsing binary star system takes place when two stars which are close to each other move in an orbit in which sometimes, one star can hide the light behind the other.
There are two types of eclipses depending on the orientation of the orbit and the size of the stars: the totals or the annular ones. It may also be the case that the eclipses are partial.
<em>Algol </em>is the best known eclipsing binary star, and the first of this kind to be discovered. Its interval between eclipses is 173 hours (2.9 days).
When this type of eclipses happens, the brightest star provides 92% of the light of the system, while the eclipsed only contributes less than 8%, and there is a third star, which is not eclipsed.
Therefore, if there is any star that has been bright most of the time, and during certain time intervals it becomes dimmer, that star is being overshadowed.
Answer:
Planet B
Explanation:
Planet B will take more to time to complete its revolution because it is farther to the sun. The shorter planet completes its revolution faster due to its short orbit around the sun. This implies that planets that are close to the sun have shorter time to complete their revolution but those far away will take more than usual.
Answer:
The stars mass (once it becomes a star) is inversely proportional to its lifetime as a main sequence star. A red dwarf can survive for many billions of years; a star that has twice the mass of the Sun, such as Sirius A, will have 25% of the Suns lifetime.
Hope this helps :)
Explanation:
<em>Which statement best summarizes the evolution of the Supreme Court's</em>
<em>interpretation of free speech during the 20th century?</em>
<u><em>A. Over time, the Supreme Court became less likely to allow restrictions on free speech.</em></u>
<u><em></em></u>
<u><em>~Hope this answers your question!~</em></u>
I think the answer is D) Medicine.
Hope this helps!
