light-year definitions wikipedia - EAS
- A light-year, alternatively spelled lightyear, is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (9.46 × 1012 km), or 5.88 trillion miles (5.88 × 1012 mi). [note 1] As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in a vacuum in one Julian year (365.25 days).
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Alles weergeven op Wikipediahttps://en.wikipedia.org/wiki/Light-yearAs defined by the IAU, the light-year is the product of the Julian year (365.25 days, as opposed to the 365.2425-day Gregorian year or the 365.24219-day Tropical year that both approximate) and the speed of light (299792458 m/s). Both of these values are included in the IAU (1976) System of … Meer weergeven
A light-year, alternatively spelled light year, is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (9.46×10 km), or 5.88 trillion miles (5.88×10 mi). … Meer weergeven
The way to calculate the light-year distance:
where:
• 299 792 458 is the number of meters light travels in … Meer weergevenDistances between objects within a star system tend to be small fractions of a light-year, and are usually expressed in
Light travels … Meer weergeven• The dictionary definition of light-year at Wiktionary Meer weergeven
The light-year unit appeared a few years after the first successful measurement of the distance to a star other than the Sun, by Friedrich Bessel in 1838. The star was 61 Cygni, … Meer weergeven
Distances expressed in light-years include those between stars in the same general area, such as those belonging to the same spiral arm or globular cluster. Galaxies themselves span from a few thousand to a few hundred thousand light-years in diameter, … Meer weergeven
• 1 petametre (examples of distances on the order of one light-year)
• Distance measures (cosmology)
• Einstein protocol Meer weergevenWikipedia-tekst onder CC-BY-SA-licensie- https://simple.wikipedia.org/wiki/Light_year
WebA light year (symbol: ly) is the distance that light travels in empty space in one year. Since the speed of light is about 300,000 km per second (about 186,000 miles per …
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Light year (disambiguation) - Wikipedia
https://en.wikipedia.org/wiki/Light_year_(disambiguation)• Buzz Lightyear, a main character in the animated film series Toy Story
• Gandahar (film), a 1988 animated science fiction film known as Light Years in English
• Light Years (2015 film), a British drama filmWikipedia · Tekst onder CC-BY-SA-licentielight year - Wiktionary
https://en.wiktionary.org/wiki/light_yearWeblight year ( plural light years ) ( astronomy) A unit of length ( abbreviation ly; equal to just under 10 trillion kilometres (10 16 metres)) equal to the distance light travels in one Julian …
- https://en.wikipedia.org/wiki/Talk:Light-year/Archive_1
WebArticle said light year was defined using the time the Earth takes to orbit the sun. It isn't -- its defined in terms of the Julian year (365.25 days of 86400 SI seconds each). The …
- https://spaceplace.nasa.gov/light-year/en
Web27-08-2020 · A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). That is a 6 with 12 zeros behind it! Looking Back in …
Lightyear 0 - Wikipedia
https://nl.wikipedia.org/wiki/Lightyear_0WebLightyear 0. De Lightyear 0 is een door de Nederlandse start-up Lightyear aangekondigde elektrische auto. Het elektrisch motorvoertuig, zal zowel via het elektriciteitsnet, alsook …
- https://en.wikipedia.org/wiki/Lightyear_(film)
WebLightyear is a 2022 American computer-animated science-fiction action-adventure film produced by Walt Disney Pictures and Pixar Animation Studios, and distributed by Walt …
- https://www.merriam-webster.com/dictionary/light-year
Web1. : a unit of length in astronomy equal to the distance that light travels in one year in a vacuum or about 5.88 trillion miles (9.46 trillion kilometers) 2. : an extremely large …
- https://en.wikipedia.org/wiki/Light
WebLight or visible light is electromagnetic radiation that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 …
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