describe how electromagnetic radiation can reveal information about the stars?

Question

describe how electromagnetic radiation can reveal information about the stars

Answer 1

Every element has its own distinct markings and you can see what types of elements are present. You can also tell if the planet is moving, how fast, and in what direction by the red shift or blue shift. Like when you hear a truck honking as it drives past it gets more high pitch as it is getting closer and lower pitch as it drives away. Light does the same thing only the light shifts towards red when coming at you and shifts toward blue when going away. You can judge the distance it shifts and will tell you the speed and direction.

Answer 2

Because that's how we see them. There is very little other data available to tell us where they are or even that they exist. Gravity is too short range, so are nuclear forces. If it weren't for electromagnetism they'd been invisible.

Answer 3

The existence of infared is something we basically at the instant became attentive to frequently by using fact we are blind to it. in case you noted its existence to all of us 2 hundred years in the past they could think of you're nuts. all of us be attentive to infared exists by using fact we've outfitted staggering gadgets which could hit upon it for us. an somewhat observant individual ought to hypothesize the existence of infared via noting how something invisible is warming an merchandise even interior the absence of technologies yet for the main area we are able to in straightforward terms percieve it is existence by using oblique skill. We hence can teach it exists. without this data, it does not be logical to have self assurance in its existence. There are an infinate form of possibillities obtainable. till there is data that a given possibillity is actual, there is not any reason to have self assurance that's. this does not advise that one shouldn't stay open to the possibillity of it present. i think that's what you're attempting to get at.

Answer 4

well the composition of stars can be found by using detail of em frequencies coz diff composition cause diff spectrum of em so this can be used to identify elements of stars.

Answer 5

Telescopes and radio telescopes collect the electro-magnetic information that we receive.

Answer 6

Different metals have different colors when burning.