7/13/2023 0 Comments 1 parsecThese examples are programmatically compiled from various online sources to illustrate current usage of the word 'parsec.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Zeeya Merali, Scientific American, 5 Sep. A parsec is an astronomical unit of distance where 1 parsec 3.26 light years (1 light year equals the distance traveled by light in one year). A parsec is defined as the distance at which an object has a 1-arcsecond stellar parallax. 2019 The image shows the supermassive black hole at the centre of the galaxy Messier 87, which lies around 17 parsecs (55 million light years) from Earth. It represents the distance at which the radius of the Earths orbit subtends an angle of one second of arc thus a star at a distance of one parsec would. 2020 In this new version, Greedo pulls the trigger first in a wild shot, missing Han by half a parsec. Nola Taylor Redd, Scientific American, 10 Feb. 2020 The problem comes in the final parsec, where gravity is not strong enough to overcome the centrifugal force of each black hole’s orbit to pull the pair closer together. 2021 Recently astronomers settled on a value of 25 parsecs (82 light-years) above the plane, but our results strongly disagree with this estimate. Joshua Rapp Learn, Discover Magazine, What, then, can astronomers do to determine whether the final parsec problem is really a problem? - Alison Klesman, Discover Magazine, 12 July 2019 This is a huge region for comparison, ten kiloparsec is about the radius of a typical spiral galaxy like our own Milky Way, and a parsec itself is already pretty big, at more than three light-years. 2 AU away (1 arcsecond parallax angle), the star would be 1 parsec distant. Levy, Wired, The clustered filaments are especially compelling as they are regularly spaced from each other, with roughly one parsec between them. A parsec is a unit of distance, e.g., to stars, that is generally used by. as 1 arcsecond) and the opposite side (defined as 1 astronomical unit (AU). Recent Examples on the Web The surface of a planet within one parsec of the Milky Way’s center could reach over 5,700 kelvin, as hot as the sun’s surface, just from dark matter traffic. The parsec (parallax of one arcsecond symbol: pc) is a unit of length. today announced the wide release of TrakSYS 12, the latest version of its industry-leading manufacturing execution system (MES) software.
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