Search results
A star is a luminous spheroid of plasma held together by self-gravity. The nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night; their immense distances from Earth make them appear as fixed points of light.
- List of largest stars - Wikipedia
Below are lists of the largest stars currently known,...
- Star - Simple English Wikipedia, the free encyclopedia
Stars have been important to people all over the world for...
- List of largest stars - Wikipedia
Imagen del Sol en falso color, una estrella de tipo-G de la secuencia principal, la más cercana a la Tierra. Una estrella (del latín: stella) es un objeto astronómico luminoso con forma de esferoide, que mantiene debido al equilibrio hidrostático alcanzado por su propia gravedad.
A simple chart for classifying the main star types using Harvard classification. In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
Below are lists of the largest stars currently known, ordered by radius and separated into categories by galaxy. The unit of measurement used is the radius of the Sun (approximately 695,700 km; 432,300 mi ). [1] The Sun, the orbit of Earth, Jupiter, and Neptune, compared to four stars.
Stars have been important to people all over the world for all of history. Stars have also been part of religious practices. Long ago, people believed that stars could never die. Astronomers organized stars into groups called constellations.
Nuclear fusion powers a star for most of its existence. Initially the energy is generated by the fusion of hydrogen atoms at the core of the main-sequence star. Later, as the preponderance of atoms at the core becomes helium, stars like the Sun begin to fuse hydrogen along a spherical shell surrounding the core.
Of the roughly 10,000 stars visible to the naked eye, only a few hundred have been given proper names in the history of astronomy. Traditional astronomy tends to group stars into constellations or asterisms and give proper names to those, not to individual stars.
