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with longitude: a difference of 15° longitude corresponds to a one-hour difference in local time, due to the differing position in relation to the Sun. Comparing...35 KB (4,153 words) - 01:07, 27 September 2024
The Longitude Act 1714 was an Act of Parliament of Great Britain passed in July 1714 at the end of the reign of Queen Anne. It established the Board of...7 KB (749 words) - 17:28, 10 August 2024- Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time is a 1995 best-selling book by Dava Sobel about John...12 KB (1,425 words) - 13:16, 27 October 2023
time, longitude cannot accurately be measured at noon. At noon the sun's change of altitude is very slow, so determining the exact time that the sun is at...9 KB (1,388 words) - 06:02, 17 November 2023
history of longitude describes the centuries-long effort by astronomers, cartographers and navigators to discover a means of determining the longitude of any...87 KB (10,579 words) - 15:12, 14 October 2024
celestial mechanics, the longitude of the periapsis, also called longitude of the pericenter, of an orbiting body is the longitude (measured from the point...5 KB (606 words) - 20:52, 27 April 2024- In celestial mechanics, true longitude is the ecliptic longitude at which an orbiting body could actually be found if its inclination were zero. Together...2 KB (156 words) - 01:31, 30 November 2023
Galactic coordinate system (redirect from Galactic longitude)equator from the Galactic Center. Analogous to terrestrial longitude, galactic longitude is usually measured in degrees (°). Latitude (symbol b) measures...15 KB (1,380 words) - 10:24, 1 August 2024
longitude. To find the Sun's position for a given location at a given time, one may therefore proceed in three steps as follows: calculate the Sun's position...25 KB (3,380 words) - 10:20, 29 July 2024
"midnight sun" is required, the observer's longitude, the local civil time, and the equation of time must be taken into account. The moment of the Sun's closest...13 KB (1,668 words) - 18:53, 16 October 2024
Meridian (geography) (redirect from Lines of longitude)give the time of meridian passage. Navigators utilized the Sun's declination and the Sun's altitude at local meridian passage, in order to calculate their...18 KB (2,249 words) - 06:55, 12 July 2024
found from the altitude of the sun at noon with the aid of a table giving the sun's declination for the day. For longitude, early ocean navigators had to...17 KB (2,193 words) - 21:09, 17 September 2024
Geographic coordinate system (redirect from Latitude and longitude)measuring and communicating positions directly on Earth as latitude and longitude. It is the simplest, oldest and most widely used of the various spatial...22 KB (2,491 words) - 18:52, 1 October 2024- Solar longitude, commonly abbreviated as Ls, is the ecliptic longitude of the Sun, i.e. the position of the Sun on the celestial sphere along the ecliptic...3 KB (381 words) - 20:26, 15 November 2023
from the Sun. Then, after sunset, he measured the arc from the Moon to the star. He used Hipparchus's model to calculate the Sun's longitude, and made...60 KB (8,341 words) - 20:53, 3 September 2024
Ecliptic coordinate system (redirect from Ecliptic longitude)(0° ecliptic longitude) points from the Earth towards the Sun at the March equinox. Because it is a right-handed system, ecliptic longitude is measured...14 KB (1,331 words) - 17:44, 18 April 2024
times since the Sun's formation. The direction of the Sun's motion, the Solar apex, is roughly in the direction of the star Vega. The Sun orbits the center...167 KB (18,910 words) - 14:56, 14 October 2024- Apparent longitude is celestial longitude corrected for aberration and nutation as opposed to mean longitude. Apparent longitude is used in the definition...940 bytes (103 words) - 10:51, 13 November 2022
Washington DC: US Naval Observatory. For time of Sun's entry or exit from a sign, calculate Longitude of Sun, apparent geocentric ecliptic of date, interpolated...6 KB (561 words) - 22:10, 17 September 2024- Solar rotation (redirect from Sun's rotation)across the Sun's face. In Stonyhurst heliographic coordinates, the left side of the Sun's face is called East, and the right side of the Sun's face is called...13 KB (1,611 words) - 18:18, 23 June 2024
- is affected by the sun, as well as by other agents, the time found by the sun's culmination cannot be depended on for the longitude, particularly when
- such as season, latitude, longitude and timezone. At any given time, one side of the planet Earth is bathed in light from the Sun (the daytime) and the other
- millennia. The sun rises in the east and sets in the west due to the rotation of the Earth around its polar axis, resulting in each longitude having a different