greenwich hour angle मीनिंग इन हिंदी

उदाहरण वाक्य

1. The process of finding the time will also lead to finding the Greenwich Hour Angle and declination of the moon at the time of interest.
2. Using a nautical almanac, the declination ( celestial latitude ), and the Greenwich hour angle ( celestial longitude ) are obtained of the observed object for the time of observation.
3. The assumed longitude is now added or subtracted to the Greenwich Hour Angle of the object to obtain the local hour angle, that is the difference in longitude between the DR position and the geographical position of the object.
4. The Almanac specifies for each whole hour of the year the position on the Earth's surface ( in declination and Greenwich hour angle ) at which the sun, moon, planets and first point of Aries is directly overhead.
5. X is described in terms of its angular height above or below the equator, known as its Declination ( corresponding to its Latitude ), and its'Hour angle', the angle between its meridian and that of X will be its Greenwich Hour Angle, measured in degrees.
6. In order to calculate the position line, the time of the sight must be known so that the celestial position i . e . the Greenwich Hour Angle ( Celestial Longitude-measured in a westerly direction from Greenwich ) and Declination ( Celestial Latitude-measured north or south of the equational or celestial equator ), of the observed celestial body is known.
7. The angle subtended at P between Z and X is the Local Hour Angle ( LHA ) of X . If Z is on the Greenwich Meridian, then that Angle must be the Greenwich Hour Angle ( GHA ) of X . If Z is not on the Greenwich Meridian, then you have the Local Hour Angle ( LHA ) of X, and if you know the GHA of X, all you need to do is add subtract the LHA of X accordingly, to discover the Longitude of Z . As you are usually standing on the point Z, you have your Longitude.