English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

2006-06-19 12:08:25 · 21 answers · asked by andy b 2 in Science & Mathematics Astronomy & Space

Ok, in theory, what happens if another light emitting star and the sun were close enough?

2006-06-19 12:16:40 · update #1

21 answers

Okay, everyone else so far is WRONG. The sun, like any well-behaved (approximate) blackbody, does absorb light which impinges upon it. A good illustration would be if the sun were part of a binary star system and it's companion star were 20x brighter. When you are positioned such that all of both stars were visible to you, things would be quite bright and you'd be wishing for some SPF 10,000. Now, if the sun moved in front if it's brighter companion (from your point of view), the total amount of light you see from the binary system would be reduced by a factor of around 20 because you would be in the SHADOW of the sun with respect to the brighter star... in other words the sun itself, although it is a light source, would be shading you from it's brighter companion because it does absorb light. I hope this helps.

2006-06-19 12:36:31 · answer #1 · answered by indiana_jones_andthelastcrusade 3 · 2 0

The sun does have a shadow. It is blocking the light of the stars that are behind it, however the amount of light it blocks is so small compared to the light from the sun itself, that the shadow is not noticable to us.

2006-06-19 17:14:08 · answer #2 · answered by Brent 2 · 0 0

Yes. Imagine a really bright star just the other side of the sun. The sun would block some or all of that's star's light: It's called an eclipse.

2006-06-20 05:04:40 · answer #3 · answered by Anonymous · 0 0

In the way we think of shadows, no. But in relation to another, brighter object it could.

For example, if there were two suns in our solar system and our sun (sol) was the less bright of the two we would be in it's "shadow" when the brighter star passed behind it. It would still be as bright as the day is now but it would be less bright than when both suns were shinning or when just the brighter sun were shinning. So, in that scenario you could think of the earth being in Sol's "shadow".

2006-06-19 12:19:12 · answer #4 · answered by Paul G 5 · 0 0

No, the sun is the light source, there isn't another light source that the sun is blocking that would make a shadow.

2006-06-19 12:10:46 · answer #5 · answered by jacksfullhouse 5 · 0 0

No. Shadows are caused by objects getting in the way of light from the sun, so the sun can't get in its own way.

2006-06-19 12:11:24 · answer #6 · answered by Anonymous · 0 0

Nope...the sun is the main light sorce, atleast for our universe and there is no other found light source as great as the sun anywhere near us to cast the shadow.

2006-06-19 16:29:38 · answer #7 · answered by Anonymous · 0 0

Even if it did, (which i don't think it does because there isn't anything else close enough to cast a brighter light on it), what would the shadow be cast upon besides space, which by the way is also black....

2006-06-19 12:12:25 · answer #8 · answered by ayleyha 3 · 0 0

no, the sun makes shadows on planets, because it's a light source

2006-06-19 12:12:25 · answer #9 · answered by Anonymous · 0 0

The world

2006-06-19 12:11:17 · answer #10 · answered by Anonymous · 0 0

fedest.com, questions and answers