How much do you know about the galaxy you live in? Sure you know your city or town perfectly, but it is unlikely that you know the details of every corner of our galaxy, the Milky Way.
Our heavenly home is an awesome place. It’s packed with stars, supernovae, nebulae, energy, and dark matter, but many of its features remain mysterious, even to scientists. For those looking to better understand their own place in the universe, today we show you a few illuminating facts about our galaxy.
The Milky Way is our home in the universe. It is a fairly typical spiral with four main arms on its disk made up of several hundred billion stars; one of them is the Sun.
The galactic center, which is about 26,000 light-years distant from Earth and contains at least one supermassive black hole (called Sagittarius A *) . The Milky Way began to form about 13 billion years ago and is part of a group of about 50 galaxies called the Local Group. The Andromeda galaxy is part of this group, as are numerous smaller galaxies, including the Magellanic Clouds. The Local Group itself is part of a larger gathering of galaxies called the Virgo supercluster.
The Milky Way gets its name from the irregular luminous band of stars and gas clouds that stretches across the sky as seen from Earth. Although the Earth is within the Milky Way, astronomers do not have as complete an understanding of its nature as they do with some outer star systems. A thick layer of interstellar dust hides much of the galaxy from scrutiny by optical telescopes, and astronomers can determine its structure on a large scale only with the help of radio and infrared telescopes, which can detect the forms of radiation penetrating it. dark matter.
Milky Way galaxy profile:
Type: barred spiral
Diameter: 100,000 – 180,000 light-years
Distance to Galactic Center: 27,000 light-years
Age: ~ 13.6 billion years.
Number of stars 100 – 400,000 million
Constellation: Sagittarius
Group: Local Group
