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According to research published in August 2015, very large galaxies may favor the birth and development of habitable planets more than smaller galaxies such as the Milky Way. In the case of the Milky Way, its galactic habitable zone is commonly believed to be an annulus with an outer radius of about 10 kiloparsecs (33,000 ly) and an inner ...
Alpha Centauri ( α Centauri, α Cen, or Alpha Cen) is a triple star system in the southern constellation of Centaurus. It consists of three stars: Rigil Kentaurus ( α Centauri A ), Toliman ( α Centauri B ), and Proxima Centauri ( α Centauri C ). [14] Proxima Centauri is the closest star to the Sun at 4.2465 light-years (1.3020 pc ).
The Birth of the Milky Way. The Birth of the Milky Way, [1] also sometimes known as The Origin of the Milky Way, [2] is an oil-on-canvas painting by the Flemish artist Peter Paul Rubens, produced between 1636 and 1638 and featuring the Greco-Roman myth of the origin of the Milky Way. The painting depicts Hera ( Juno ), spilling her breast milk ...
Category:Milky Way. The main article for this category is Milky Way. This category is for categorizing under the galaxy, not under the band of light in the night sky. Wikimedia Commons has media related to Milky Way Galaxy.
Later in the 1920s, Edwin Hubble showed that Andromeda was far outside the Milky Way by measuring Cepheid variable stars, proving that Curtis was correct. It is now known that the Milky Way is only one of as many as an estimated 200 billion (2 × 10 11) to 2 trillion (2 × 10 12) or more galaxies in the observable universe.
Milky Way Galaxy formed 13 May: 8.8: Milky Way Galaxy disk formed 2 Sep: 4.57: ... (discovered in 4.1 billion-year-old rocks in Western Australia). 21 Sep: 3.8:
Galactic coordinate system. Artist's depiction of the Milky Way Galaxy showing the origin and orientation of galactic longitude. The galactic longitude ( l) runs from the Sun upwards in the image through the center of the galaxy. The galactic latitude ( b) is perpendicular to the image (i.e. coming out of the image) and also centered on the Sun.
A satellite galaxy is a smaller companion galaxy that travels on bound orbits within the gravitational potential of a more massive and luminous host galaxy (also known as the primary galaxy). [1] Satellite galaxies and their constituents are bound to their host galaxy, in the same way that planets within our own solar system are gravitationally ...
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