NKRIKU, Jakarta – As do the planet Earth towards the Sun, each planet moves around its parent star. The stars turned out to also moves around the center of the galaxy. And even the galaxy was not silent. The Milky way galaxy and the galaxy-the nearest galaxy to the other is drawn towards a certain region in space that its distance from Earth of about 150 million light years.
“However, until so far, we have yet to know for sure what has attracted our galaxy and galaxies other. Astronomers just renamed it as the Great Attractor or Towing Large,” said Riza Miftah Muharram, founder and CEO at BelajarAstro, platform studying astronomy online first in Indonesia.
Riza write about the Great Attractor in the page InfoAstronomy.org on January 29, 2022 and allow the Tempo to quote it. According to Riza, Big Towing located in the direction of the sky known as the Zone of Avoidance or Evasion, namely, the area that leads to the center of the Milky way Galaxy, where there is so much gas and dust that we can’t see what’s behind him with the observation of the spectrum of visible light. Or in other words, in the view of the Earth, Towing located at the rear part of the center of the Milky way Galaxy.
He said, evidence of the existence of Big Towing was first discovered in the 1970s. That time astronomers have no way to see it through the Zone of Circumvention, but this time, when the X-rays came to be used as one way of observation, astronomers can begin to see the object in the region of Big Towing it. The object is supergugus of the galaxy (cluster which consists of several clusters of galaxies) the giant in the area of Big Towing, known as the Norma Cluster–because it is in the direction of the constellation Norma.
“According to the observations, the Norma Cluster has a mass of about 1,000 trillion times the mass of the Sun, or the equivalent of thousands of galaxies,” said Riza who is also the coordinator is also an editor for the APOD (Astronomy Picture of The Day) NASA bahasa Indonesia.
Observations continued until astronomers can now see a region of the galaxy which is great again and find that the Milky way and the galaxies, and Big Towing itself, are moving towards something greater. Something bigger was known as Supergugus Shapley, who observed contains more than 8,000 galaxies and has a mass of more than ten million billion times the mass of the Sun.
It makes Supergugus Shapley as supergugus the galaxy is the most massive in the distance of one billion light years from Earth, the things that make our galaxy as well as every galaxy in the corner of the universe around us is moving towards him.
According to Riza, it has been understood that the Big Towing is not something that is scary, but rather just a bunch of the galaxy, just consisting of thousands of galaxies that the accumulation of gravity pulls everything to him. He also stated that if the Towing Large is mortal, will not last long.
“Maybe this time galaxies in the Supergugus Shapley still be bound by gravity, but millions to billions of years, galaxies in it will be more far apart because memuainya of the universe,” he said.
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