Anwser is not 25X
Please help.
2007-05-13 11:21:56 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Physics
I'm guessing (B-A)/25
2007-05-13 12:11:04 · answer #1 · answered by Anonymous · 0⤊ 0⤋
This is the inverse square law. Do the stars have equal apparant brightness (Star B 625 times as bright absolute) or equal absolute brightness (Star A appears 625 times as bright).
If A appears 625 times as bright it's magnitude is 7 lower than B (B has Higher number) because the approximate ratio for each unit of magnitude is 2.5 OR magnitude^5 = 100 (by definition) then 625 = 100 * 2.5 * 2/5
2007-05-14 04:07:21 · answer #2 · answered by welcome news 6 · 0⤊ 0⤋
Question not clear. A guess on what you mean: Star A is 25 times closer, by what factor does star B put out more light energy?
If so, star B must put out more energy by a factor of x25^2.
2007-05-13 19:51:56 · answer #3 · answered by sojsail 7 · 0⤊ 0⤋
Star B is 25 times brighter.
2007-05-17 16:52:53 · answer #4 · answered by johnandeileen2000 7 · 0⤊ 0⤋
wouldn't it be X/25 not 25X.
cause it's 25 times, closer not 25 times farther.
2007-05-13 18:34:03 · answer #5 · answered by cpcericola 2 · 0⤊ 0⤋