Some extra info: according to this article, the Sun oscillates through the plane of the galaxy with an amplitude of about 230 light-years, crossing the plane every 33 million years. Many of the distances are only estimates, and some may be incorrect by 50% or more. $\endgroup$ – … The Andromeda Galaxy (IPA: / æ n ˈ d r ɒ m ɪ d ə /), also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula (see below), is a barred spiral galaxy approximately 2.5 million light-years (770 kiloparsecs) from Earth and the nearest major galaxy to the Milky Way. So beyond this, individual galaxy redshifts yield distances to accuracies better than 10% and obviously this improves as we go to greater distance. When we saw the larger image, we would have no way of knowing the galaxy actually was larger: we would assume that it was simply closer to us. “From this, they derived a refined distance of estimate of 7.6 to 8.2 kpc – which works out to about 24,788 to 26,745 light years.” Which is off by a factor of 10. The Hubble Space Telescope has calculated the distance to the most far-out galaxy ever measured — GN-z11 — providing scientists with a look deep into the history of the universe. They found that the FRB came from a medium-sized galaxy at a cosmological distance. The Milky Way Galaxy is organized into spiral arms of giant stars that illuminate interstellar gas and dust. Suppose a certain galaxy is twice as large as an average galaxy. A parsec is a unit of distance equal to 3.26 light-years. It is a spiral type galaxy. You must consider one thing however, there is no way for us to look down upon our own galaxy as we might with the Andromeda galaxy for example. The important thing about clusters is that all the stars in the cluster are at (nearly) the same distance from Earth. ), provided p is small (which it is for all stars), that the distance D to the near star is given by 206265 AU / p, where AU is the astronomical unit mentioned above (i.e., the distance from the earth to the sun, 150 million km or 93 million miles), and p is the parallax angle measured in seconds of arc. Quasars are capable of emitting hundreds or even thousands of times the entire energy output of our galaxy, making them some of the most luminous and energetic objects in the entire Universe. You can see how big it appears to be, but since you do not know its distance, you cannot tell how big it really is. Fast radio bursts (FRBs) are brief radio emissions from distant astronomical sources. Its distance is 158, 200 light years to the Earth. Our Solar System is located in the middle of this galactic disk. Andromeda galaxy distance from Earth is 2.5 million light years. The galaxies nearest to the Earth include Andromeda, Segue 1, Sagittarius Dwarf Spheroidal, and Canis Major Dwarf Galaxies. This list of the nearest galaxies to Earth is ordered by increasing distance. It takes eight minutes for light to get from the Sun to the Earth, this super long distance. Distance Information. According to a map issued by Japanese radio astronomy project VERA, earth … The Earth is a tiny planet on a galaxy known as Milky Way galaxy, which is just one of the many billions of galaxies that form the universe. Astronomers nail down distance to the earliest galaxy yet The galaxy EGS-zs8-1, the most distant galaxy yet seen, was discovered in images from the Hubble and Spitzer space telescopes. Abstract. The Galactic Center (or Galactic Centre) is the rotational center of the Milky Way galaxy; it is a supermassive black hole of 4.100 ± 0.034 million solar masses, which powers the compact radio source Sagittarius A*. In fact, we need to know half of the angle, not the entire one. Graphic view of our Milky Way Galaxy. Science, this issue p. 565; see also p. 546. distance scale for the Galaxy would lead to better estimates of the ages of globular clusters, Ho, and the age of the Universe. So one thing, this huge distance wouldn't even show up on this picture. The closest known galaxy to us is the Canis Major Dwarf Galaxy, at 236,000,000,000,000,000 km (25,000 light years) from the Sun. Specifically, Earth's movement toward the supermassive black hole at the center of the Milky Way Galaxy just got faster by 7 kilometers per second. Distances are given in light years (ly). The Sun is in a finger called the Orion Spur. On Earth, the only information we could get from that galaxy is what we could see. It's a big flat disk of stars measuring up to 120,000 light years across. image from www.daviddarling.info This is one representation of what our galaxy may look like.
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