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65,000,000,000,000
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What is it called when the brightness of a star is measurable on a scale?
Star brightness is defined in terms of apparent magnitude, which is how bright the star appears from Earth. Star brightness is also defined by absolute magnitude, which is how bright a star appears at the standard distance of 36.2 light years. Luminosity is also a way that a star's light is measured.
Why don't scientists use kilometers to measure in space?
They use Km if the distance is close if it is very far they use an astronomical unit of the distance between the earth and sun, they also use light years which is the distance light travels in one year.
A star's brightness as if it were a standard distance is called?
Absolute Brightness .
What does par in parsec means?
parallax[parallax+second], in astronomy, basic unit of length for measuring interstellar and intergalactic distances, equal to 206,265 times the distance from the earth to the sun, 3.26 light-years, or 3.08×1013 km (about 19 million million mi). The distance in parsecs of an object from the earth is the reciprocal of the http://www.answers.com/topic/parallax of the object. The nearest star, Proxima Centauri, has a parallax of 0.763″ of arc and a distance of about 1.31 parsecs.definition from Answers.com
How many millimeters is the sun from the earth?
The sun is not millimeters. It is a G-type star, on the Main Sequence, in mid-life. For its spectral classification, its size is average, with a diameter of about 1,390,000,000,000 millimeters
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
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.
How long would it take for a spacecraft to travel to a star located 40 lightyears away from Earth?
Traveling at the speed of light, it would take a spacecraft 40 years to reach a star located 40 lightyears away from Earth.
A star is 300 light years away forom Earth if the speed of the star from earth give your answer in kilometers in scientific form?
You can't figure out the speed of the star, knowing only the distance.
How long is the crux constellation?
The Crux or Southern Cross constellation is made up of four stars which can be joined in such a way, by an observer on earth, to make a cross shape. Although the smallest constellation, it is one of the most distinctive, appearing on both the New Zealand and Australian national flag. In the sky, it is not very long, maybe just as long as the width of the thumb at arms length. In real terms the distance between the top of the cross (a star called Gacrus) and the bottom of the star (Acrux) is huge. Gacrus is 88 lightyears from earth, while Acrux in over 320 lightyears from us, so a distance of about 230 lightyears separates them. The other two main stars in the constellation are around the same distance as Acrux, 353 and 364 lightyears.
Is alpha centauri a planet?
No. Alpha centaurii or Proxima centaurii (Proxima=Closest in Latin) is the closest star to earth except the sun, with an approx. distance of 4.28 lightyears (the distance that light can travel in 4.28 years). so alpha centaurii is a star not a planet. if it has planets orbiting around it is unknown.
Why is the distance to planets usually given in kilometers whereas the distance to the stars are given in light years?
Because stars are much, much further away than planets are. What sounds better? The nearest star is 4.24 lightyears away or 40,132,658,900,000 (Or 4.013x10^13) kilometers? To go even deeper, it's better to give distance in astronomical units (1 au = Mean distance from Sun to Earth), megameters (1Mm = 1,000km) or gigameters (1Gm = 1,000,000km) when refering to planets. When refering to distance, it's best and least confusing to use smaller units. If you reference somoething extremely far away, you would often use parsecs (Be it parsecs, megaparsecs, etc.). where 1 parsec = 3.2 lightyears.
If a star is 61 lightyears what does that mean?
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.
What is the distance of the Capella star in the Earth?
what is distance of capella from earth
How many lightyears is the closest sun other than the sun?
The closest star to the Earth, other than our own Sun, is the red dwarf star Proxima Centauri. It is about 4.22 light years away from us.The second closest star to the Earth (apart from the Sun) is Barnard's Star, a red dwarf. It is about 5.96 light years (about 35.0 trillion miles or 56.3 trillion kilometers) away.
