Traduzione e analisi delle parole tramite l'intelligenza artificiale ChatGPT
In questa pagina puoi ottenere un'analisi dettagliata di una parola o frase, prodotta utilizzando la migliore tecnologia di intelligenza artificiale fino ad oggi:
- come viene usata la parola
- frequenza di utilizzo
- è usato più spesso nel discorso orale o scritto
- opzioni di traduzione delle parole
- esempi di utilizzo (varie frasi con traduzione)
- etimologia
Cosa (chi) è Hubble$501003$ - definizione
.png?width=200 "Hubble eXtreme Deep Field (HXDF) taken in 2012")
![XDF size compared with the size of the [[Moon]]](https://commons.wikimedia.org/wiki/Special:FilePath/XDF-scale.jpg?width=200 "XDF size compared with the size of the [[Moon]]")
![protogalaxies]] beyond 9 billion years.](https://commons.wikimedia.org/wiki/Special:FilePath/XDF-separated.jpg?width=200 "protogalaxies]] beyond 9 billion years.")
![nm]] (top left), 450 nm (top right), 606 nm (bottom left) and 814 nm (bottom right)](https://commons.wikimedia.org/wiki/Special:FilePath/Galaxy in each of the four wavelengths comprising the HDF.jpg?width=200 "nm]] (top left), 450 nm (top right), 606 nm (bottom left) and 814 nm (bottom right)")
![The HDF imaged by the [[Spitzer Space Telescope]]. The top segment shows the foreground objects in the field; the bottom shows the background with the foreground objects removed.](https://commons.wikimedia.org/wiki/Special:FilePath/Hubble Deep Field by Spitzer.jpg?width=200 "The HDF imaged by the [[Spitzer Space Telescope]]. The top segment shows the foreground objects in the field; the bottom shows the background with the foreground objects removed.")
![degree]] of sky. The Moon as seen from Earth would fill roughly one quarter of this image.](https://commons.wikimedia.org/wiki/Special:FilePath/Hubble Deep Field location.gif?width=200 "degree]] of sky. The Moon as seen from Earth would fill roughly one quarter of this image.")
![Diagram illustrating comparative sampling distance of the HDF and the 2004 [[Hubble Ultra-Deep Field]]](https://commons.wikimedia.org/wiki/Special:FilePath/Hubble Ultra Deep Field diagram.jpg?width=200 "Diagram illustrating comparative sampling distance of the HDF and the 2004 [[Hubble Ultra-Deep Field]]")
![galaxies]].](https://commons.wikimedia.org/wiki/Special:FilePath/Improvement in Hubble images after SMM1.jpg?width=200 "galaxies]].")
Wikipedia
In cosmology, a Hubble volume (named for the astronomer Edwin Hubble) or Hubble sphere, subluminal sphere, causal sphere and sphere of causality is a spherical region of the observable universe surrounding an observer beyond which objects recede from that observer at a rate greater than the speed of light due to the expansion of the universe. The Hubble volume is approximately equal to 1031 cubic light years (or about 1079 cubic meters).
The proper radius of a Hubble sphere (known as the Hubble radius or the Hubble length) is , where is the speed of light and is the Hubble constant. The surface of a Hubble sphere is called the microphysical horizon, the Hubble surface, or the Hubble limit.
More generally, the term Hubble volume can be applied to any region of space with a volume of order . However, the term is also frequently (but mistakenly) used as a synonym for the observable universe; the latter is larger than the Hubble volume.
The center of the Hubble volume and observable universe is arbitrary in relation to the overall universe; instead it is centered around its origin (impersonal or personal "observer").
