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Bookmark or Share- Hubble Captures a Swarm of Stars | Science Mission DirectorateLooking like a glittering swarm of buzzing bees, the stars of globular cluster NGC 6440 shine brightly in this NASA Hubble Space Telescope image. Located some 28,000 light-years away in the constellation Sagittarius, the archer. Portal image: Center of the image is filled with a sphere of white stars. A smattering of orang-white stars dots the ...
- Star | Definition, Light, Names, & Facts | Britannicastar, any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources. Of the tens of billions of trillions of stars composing the observable universe, only a very small percentage are visible to the naked eye. Many stars occur in pairs, multiple systems, or star clusters.
- Star - WikipediaStars are not spread uniformly across the universe, but are normally grouped into galaxies along with interstellar gas and dust. A typical large galaxy like the Milky Way contains hundreds of billions of stars. There are more than 2 trillion (10 12) galaxies, though most are less than 10% the mass of the Milky Way.
- Lists of stars - WikipediaThe following is a list of particularly notable actual or hypothetical stars that have their own articles in Wikipedia, but are not included in the lists above. BPM 37093 — a diamond star. Cygnus X-1 — X-ray source. EBLM J0555-57Ab — is one of the smallest stars ever discovered.
- What Is a Star? | Types of Stars - Sky & TelescopeA star is a luminous ball of gas, mostly hydrogen and helium, held together by its own gravity. Nuclear fusion reactions in its core support the star against gravity and produce photons and heat, as well as small amounts of heavier elements. The Sun is the closest star to Earth.
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