chord

line tracing the path of a celestial object as it moves in front of another

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About chord

In the field of astronomy the term chord typically refers to a line crossing an object which is traversed during an occultation event. By taking accurate measurements of the start and end times of the event, in conjunction with the known location of the observer and the object's orbit, the length of the chord can be determined giving an indication of the size of the occulting object. By combining observations made from several different locations, multiple chords crossing the occulting object can be determined giving a more accurate shape and size model. This technique of using multiple observers during the same event has been used to derive more sophisticated shape models for asteroids, whose shape can be highly irregular. A notable example of this occurred in 2002 when the asteroid 345 Tercidina underwent a stellar occultation of a very bright star as seen from Europe. During this event a team of at least 105 observers recorded 75 chords across the asteroid's surface allowing for a very accurate size and shape determination.

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chord

line tracing the path of a celestial object as it moves in front of another

0members1here now

Ask Genius Site

Not who you're looking for? Others named chord: imaginary straight line joining the leading and trailing edg · geometric line segment whose endpoints both lie on the curve · protocol and algorithm for a peer-to-peer distributed hash t · concurrency construct available in Polyphonic C♯ and Cω, ins

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About chord

In the field of astronomy the term chord typically refers to a line crossing an object which is traversed during an occultation event. By taking accurate measurements of the start and end times of the event, in conjunction with the known location of the observer and the object's orbit, the length of the chord can be determined giving an indication of the size of the occulting object. By combining observations made from several different locations, multiple chords crossing the occulting object can be determined giving a more accurate shape and size model. This technique of using multiple observers during the same event has been used to derive more sophisticated shape models for asteroids, whose shape can be highly irregular. A notable example of this occurred in 2002 when the asteroid 345 Tercidina underwent a stellar occultation of a very bright star as seen from Europe. During this event a team of at least 105 observers recorded 75 chords across the asteroid's surface allowing for a very accurate size and shape determination.

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Not who you're looking for? Others named chord: imaginary straight line joining the leading and trailing edg · geometric line segment whose endpoints both lie on the curve · protocol and algorithm for a peer-to-peer distributed hash t · concurrency construct available in Polyphonic C♯ and Cω, ins