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A Light Year is a measure of distance. If a star is 61 light years away, then it would take light (or radio waves, which travel at the speed of light) 61 years to get there.
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∙ 15y ago
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What is the closest star to earth at night?
The sun is always by far the closest, regardless of time of day. The next nearest star is Proxima centauri, over 4 lightyears away.
How can people literally see the past by using light waves?
Here's the example that illustrate what you just asked. I will be using this example from astronomy. When you look up the sky to the stars, you are literally seeing into the past. The distance from you to the star you are looking at is x lightyears away. Lightyear is distance light travles in 1 year. So if a star is, say 100 lightyears away from you, then you are seeing the state of the star that much time ago.
How far is alcyone from earth?
Albireo is the fifth brightest star in the constellation Cygnus.Although it appears to be a single star, it is in fact a binary star system.It is located about 390 light years from us.See related link for more information
What nebulae is cygnus in?
Sorry, but this doesn't make sense! For a start, 'nebulae' is plural. And Cygnus isn't in a nebula. Cygnus (like all the constellations) is just a name given to a region of sky that appears to resemble some object or other from the arrangement of its stars. None of the stars in a given constellation usually have any connection with the others. They just lie in the same general direction. Deneb, the brightest star in Cygnus, is over 1000 lightyears away, but close to it (in the sky!) we have 61 Cygni, which is one of the closest stars to us, at about 11 lightyears. A constellation is a purely human construct, like (say) a country with its borders.
The star 61 cygni B has a main sequence lifetime of about how many years?
10¹¹ years
What type of star is Zavijah?
it is a galaxy lightyears away
How far away is the star pollux?
666 Lightyears
Is to infinity and beyond a Star Trek quote?
No. It is Buzz Lightyears catchphrase.
What is the distance to the second nearest star from earth?
it is 4.24 lightyears away
How long is the distance from earth to the star Gemini?
over 9000 lightyears away
What is the color of the Virgo stars?
spica is the brightess star in virgo. it is blue. 200 lightyears away. it is 2400k
What properties do scientists use to group stars?
Temp.,Size, Brightness, And How Many LightYears Away The Star Is.
What does the number 61 mean in the Bible?
Number 61 is important because the 61nth book in the Bible has 61 verses, and its the only book with such a correspondence. The word ÔfearÕ is used 61 times in the New Testament and the words Ôeternally, star and freeÕ appear 61 times in the whole Bible.
How many kilometers is star wolf 359 from the earth?
I can't give you the answer in kilometres, but Wolf 359 is 7.78 lightyears from Earth
How many lightyears is the nearest star from the earth?
The nearest star to Earth is the sun, at a distance of 0.000016 light years from Earth. The next nearest star, Proxima Centauri, is about 4.2 light years away.
What is the closest star to earth at night?
The sun is always by far the closest, regardless of time of day. The next nearest star is Proxima centauri, over 4 lightyears away.
How far away is the moon in lightyears?
it is 0.0000000406 lightyears away, it is pretty close.
