World realities Galaxy are gatherings of billions of stars that are held together by the power of gravity . Most worlds are either twisting or circular, yet some are unpredictable fit.
The Milky Way The most popular world is the Milky Way . The word world itself comes from the Greek word for milk This is on the grounds that before telescopes were sufficiently amazing to demonstrate that they were comprised of individual stars, universes looked like smooth or shady regions in the sky.
Our somewhat little Solar System is just one of 100-200 billion stars in the Milky Way universe , which is 100,000 light a long time in measurement . The Sun and every one of the planets require around 200,000,000 years to finish one circle around its middle. The most brilliant universe .
The Large Magellanic Cloud , which is apparent just in the southern side of the equator , is 170,000 light a very long time from Earth and 39,000 light a long time in width . Biggest world The focal universe of the Abell 2029 system group was found in 1990. It is 1,070 million light years far off and has a distance across of 5.6 million light years, multiple times the breadth of our own world.
It has a complete light yield identical to 2 trillion times that of the Sun. Closest universe The Sagittarius Dwarf, found in 1994, is in excess of 70,000 light years (660 quadrillion km) from Earth, and is being destroyed. Remotest apparent item The most far off thing in the Universe that can be seen with the unaided eye is the Andromeda Galaxy, which is 2,309,000 light a long time from Earth.
This cosmic system has 300 billion stars and a width of 180,000 light years. The light we see now from Andromeda left there soon after the principal people showed up on Earth. Most far off world In 2004, stargazers at the European Southern Observatory, Chile, reported the disclosure of Galaxy Abell 135 IR in 1916. It exists a shocking 13.2 billion light a long time from Earth.