1.what is star made of?
2. what star closest to earth?
3. what is the size of the sun?
4. what is the brightest star found in the north?
5.how distance of stars measured?
6.why do some stars seem bright while otheres are not?
7. what color of the star is hottest?
8.what color of the star is coolest?
pa ansewr pls wag nyu na savihin kubg di nyu alam sayanag lang yung tanong
nonsense=report
2. what star closest to earth?
3. what is the size of the sun?
4. what is the brightest star found in the north?
5.how distance of stars measured?
6.why do some stars seem bright while otheres are not?
7. what color of the star is hottest?
8.what color of the star is coolest?
pa ansewr pls wag nyu na savihin kubg di nyu alam sayanag lang yung tanong
nonsense=report
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Answer:
1.Stars are mostly made of hydrogen and helium that produces light and heat.
2.Proxima Centauri
3.696,340 km
4.Acturus
5.stellar parallax
6.The apparent brightness of a star depends on both its luminosity and its distance from Earth.
7.Blue
8.Red
1. Stars are made of very hot gas. This gas is mostly hydrogen and helium, which are the two lightest elements. Stars shine by burning hydrogen into helium in their cores, and later in their lives create heavier elements.
2. The closest star to Earth are three stars in the Alpha Centauri system. The two main stars are Alpha Centauri A and Alpha Centauri B, which form a binary pair. They are an average of 4.3 light-years from Earth.
3. The mean radius of the sun is 432,450 miles (696,000 kilometers), which makes its diameter about 864,938 miles (1.392 million km). You could line up 109 Earths across the face of the sun. The sun's circumference is about 2,713,406 miles (4,366,813 km).
4. The star Arcturus is easy to identify. ...
Arcturus and its constellation Boötes the Herdsman. ...
The red giant Arcturus is roughly 25 times the diameter of our sun. ...
Arcturus or Alpha Boötis (Alph Boo) is the brightest naked eye star in the constellation Boötes the Herdsman.
5. Astronomers estimate the distance of nearby objects in space by using a method called stellar parallax, or trigonometric parallax. Simply put, they measure a star's apparent movement against the background of more distant stars as Earth revolves around the sun.
6. A star's brightness also depends on its proximity to us. The more distant an object is, the dimmer it appears. Therefore, if two stars have the same level of brightness, but one is farther away, the closer star will appear brighter than the more distant star - even though they are equally bright!
7. Blue
The fact that stars come in different colours is not a mere curiosity. The colour provides a fundamental piece of data in stellar astrophysics—the surface temperature of the star. The hottest stars are blue and the coldest are red, contrary to the use of colours in art and in our daily experience.
8. Red stars are the coolest. Yellow stars are hotter than red stars. White stars are hotter than red and yellow. Blue stars are the hottest stars of all.
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