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A light-year, alternatively ... (5.879 trillion miles) ≈ 63 241.077 astronomical ... It will take about 17 500 years to reach one light-year at its current speed of ...
This number is likely much higher, due to the sheer number of stars needed to be surveyed; a star approaching the Solar System 10 million years ago, moving at a typical Sun-relative 20–200 kilometers per second, would be 600–6,000 light-years from the Sun at present day, with millions of stars closer to the Sun.
Distance of the outer limit of Oort cloud from the Sun (estimated, corresponds to 1.2 light-years) — Parsec: 206 265 — One parsec. The parsec is defined in terms of the astronomical unit, is used to measure distances beyond the scope of the Solar System and is about 3.26 light-years: 1 pc = 1 au/tan(1″) [6] [61] Proxima Centauri: 268 000 ...
Astronomers discovered supersonic winds on a giant gas planet located over 500 light-years from Earth. In a study released Tuesday in Astronomy & Astrophysics astronomers who have been studying ...
Betelgeuse's color may have changed from yellow (or possibly orange; i.e. a yellow supergiant) to red in the last few thousand years, based on a 2022 review of historical records. This color change combined with the CMD suggest a mass of 14 M ☉, an age of 14 million year and a distance from 125 to 150 parsecs (~400 to 500 light years). [12]
804.67 km – (500 miles) distance of the Indy 500 automobile race; Geographical. ... Ten light-years (94.6 Pm) radius circle with yellow Vernal Point arrow; ...
A light-year is the distance light travels in one Julian year, around 9461 billion kilometres, 5879 billion miles, or 0.3066 parsecs. In round figures, a light year is nearly 10 trillion kilometres or nearly 6 trillion miles. Proxima Centauri, the closest star to Earth after the Sun, is around 4.2 light-years away. [90]
The spacecraft will spend the next six years traveling about 2.2 billion miles (3.6 billion kilometers) to reach its namesake, located in the outer part of the main asteroid belt.