Science Word of the Day: Parsec
Pronunciation: Pah-cek
Meaning: The parsec is a critical concept often misunderstood, notably by George Lucas. In the 1977 script for Star Wars: Episode IV: A New Hope, Han Solo infamously claimed: The Millennium Falcon completed the Kessel Run in less than 12 parsecs. However, this sparked confusion because a parsec is a unit of distance, not time, leading to widespread debate among Star Wars fans for nearly five decades.
To clarify the concept, a parsec is the distance at which one astronomical unit subtends an angle of one arcsecond. Let’s delve a bit deeper. Parallax is a method used to measure distances to far-off objects, such as stars, by observing their apparent movement against a backdrop of more distant stars. An arcsecond is an angular measurement, equivalent to 1/3600 degrees.
Therefore, a parsec equals approximately 206,265 times the distance from Earth to the Sun, or about 3.26 light-years.
Usage in a Sentence: The 2018 film ‘Solo: A Star Wars Story’ attempts to clarify Solo’s claim regarding a parsec, suggesting he was actually referencing distance. However, his stance remains debatable.
Can You Solve Today’s Science Word Puzzle? Chain Word?
Topics
Source: www.livescience.com