The facts of astronomy

!9# The facts of astronomy

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To count the stars in the universe, we need a by 22 zeros. Now we know that many of these stars are surrounded by planets. Then look at the moons, planets, asteroids, nebula, galaxies and all the other things around the universe contains.

The brightest star seen from Earth, the sun is 250,000 times closer than the sun so bright that the nearest star.The washes all the other stars in the sky in daylight. On a scale of brightness weNumbers, use the lowest are brighter. 26.73 On the scale we use the sun and the moon is -12.6. The top-five lists of the brightest stars are:

# 5 is Vega, the eagle or vulture in Arabic. It is about 25 light years from Earth, with a magnitude of 0.03. Just because the star appears brighter from Earth does not mean that it's really brilliant. Our sun, for example, appears brighter than any star, even if it is not one of the most brilliant of the universe. This is so becauseto close.

Rigel Kentaurus # 4 is that Arabic is the centaur walk. It is about four light years from Earth, with a magnitude of -. 01.

In No 3 is Arturo. In greek means guardian of the bear. Arcturus is 37 light years from Earth.

# 2 is Canopus. It is actually the brightest of all these five stars. But is 313 light years from Earth and is therefore only the second in the list as seen from Earth. -. 62 is its size can be seen from Earth.

# 1 is Sirius, which meansDevastation in greek. Sirius is also known as the Dog Star because it is the brightest star in the constellation Canis Major. And 'only 9 light years from Earth. The second of these five approaches. And 'course to be the brightest star in the sky, with a magnitude of -1.44.

The facts of astronomy

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