What does annual parallax mean?
Definitions for annual parallax
an·nu·al par·al·lax
This dictionary definitions page includes all the possible meanings, example usage and translations of the word annual parallax.
Princeton's WordNet
heliocentric parallax, annual parallaxnoun
the parallax of a celestial body using two points in the earth's orbit around the sun as the baseline
Wikipedia
annual parallax
Stellar parallax, is the apparent shift of position (parallax) of any nearby star (or other object) against the background of distant stars. By extension, it is a method for determining the distance to the star through trigonometry, the stellar parallax method. Created by the different orbital positions of Earth, the extremely small observed shift is largest at time intervals of about six months, when Earth arrives at opposite sides of the Sun in its orbit, giving a baseline distance of about two astronomical units between observations. The parallax itself is considered to be half of this maximum, about equivalent to the observational shift that would occur due to the different positions of Earth and the Sun, a baseline of one astronomical unit (AU). Stellar parallax is so difficult to detect that its existence was the subject of much debate in astronomy for hundreds of years. Thomas Henderson, Friedrich Georg Wilhelm von Struve, and Friedrich Bessel made first successful parallax measurements in 1832-1838, for the stars alpha Centauri, Vega, and 61 Cygni.
ChatGPT
annual parallax
Annual parallax is the apparent shift in position of a nearby star as observed from Earth due to our planet's annual orbit around the sun. It is used in astronomy for measuring the distance from the Earth to a star or other celestial body. It is expressed in arcseconds and the smaller the parallax, the greater the distance from Earth to the celestial body.
Dictionary of Nautical Terms
annual parallax
See PARALLAX.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of annual parallax in Chaldean Numerology is: 9
Pythagorean Numerology
The numerical value of annual parallax in Pythagorean Numerology is: 4
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"annual parallax." Definitions.net. STANDS4 LLC, 2024. Web. 30 Apr. 2024. <https://www.definitions.net/definition/annual+parallax>.
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