Answer:
A star's brightness also depends on its proximity to us. The more distant an object is, the dimmer it appears. Therefore, if two stars have the same level of brightness, but one is farther away, the closer star will appear brighter than the more distant star - even though they are equally bright!
hope this helps
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Explanation:
Answer:
I am not going to answer, just explain as you asked.
Explanation:
With this, they are asking to to fill out the acronyms, or letter abbreviations for the different things. Should be simple enough, just goo gle the acronyms and find your answers :)