Dictionary Meaning and Definition on 'Stars'
Wikipedia Meaning and Definition on 'Stars'
A star is a massive, luminous ball of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth. Other stars are visible from Earth during the night when they are not outshone by the Sun or blocked by atmospheric phenomena. Historically, the most prominent stars on the celestial sphere were grouped together into constellations and asterisms, and the brightest stars gained proper names. Extensive catalogues of stars have been assembled by astronomers, which provide standardized star designations.
For at least a portion of its life, a star shines due to thermonuclear fusion of hydrogen in its core releasing energy that traverses the star's interior and then radiates into outer space. Almost all naturally occurring elements heavier than helium were created by stars, either via stellar nucleosynthesis during their lifetimes or by supernova nucleosynthesis when stars explode. Astronomers can determine the mass, age, chemical composition and many other properties of a star by observing its spectrum, luminosity and motion through space. The total mass of a star is the principal determinant in its evolution and eventual fate. Other characteristics of a star are determined by its evolutionary history, including diameter, rotation, movement and temperature. A plot of the temperature of many stars against their luminosities, known as a Hertzsprung-Russell diagram (H–R diagram), allows the age and evolutionary state of a star to be determined.[See more about Stars at Dictionary 3.0 Encyclopedia]
Words and phrases related to 'Stars'
'Stars' in famous quotation sentence
* All men have the stars, but they do not mean the same things for different people. For some they are guides, for others, no more than little lights in the sky. But all these are silent. You--you alone have the stars as no one else has them - Antoine De Saint-Exupery
* I met in the street a very poor young man who was in love. His hat was old, his coat worn, his cloak was out at the elbows, the water passed through his shoes, - and the stars through his soul. - Victor Hugo
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Stars Sample Sentences in News
- Dallas Stars Daily Links: September Is Finally Here
It seems like its been ages since the Stars last played any hockey. Now that September is here, hockey news will finally start to rolling in a bit more regularly. In the meantime, enjoy this links as something to ready while your burgers are on the grill. Mike Heika continues his rolling chat, this time discussing the contract status of Eakin and and Dillon. W Read more on this news related to 'Stars'
- Social-media stars find live performances click with fans
Move aside, Lady Gaga. Here come the big stars of today and if you’re older, you’ve probably never heard of them. But to younger people, these stars of YouTube, Vine and other social media are the bomb. Read more on this news related to 'Stars'
- Why 'sibling stars' look alike
Washington, Sep 1 (ANI): A new study has revealed that even stars that don't stay together in a cluster will share a chemical fingerprint with their siblings which can be used to trace them to the same birthplace. Mark Krumholz, professor of astronomy and astrophysics at UC Santa Cruz said that they can see that stars that are part of the same star cluster tod Read more on this news related to 'Stars'