Converse of object

• calculate: A basic ship's log was used as a means of estimating the speed of a vessel, and so roughly calculating the longitude.

• determine: One of the big problems of the day was being able to determine the longitude at sea.

• find: King Charles II founded the Royal Observatory in 1675 to solve the problem of finding longitude at sea.

Preposition: at

• sea: King Charles II founded the Royal Observatory in 1675 to solve the problem of finding longitude at sea.

Adjective modifier

• galactic: The Astronomical Almanac reports the galactic longitude of the object in decimal degrees.

• ecliptic: The Astronomical Almanac reports the ecliptic longitude of the object in decimal degrees.

• celestial: Celestial longitude is reckoned eastwards from the vernal equinox, which is also known as the first point of Aries ' .

• geographic: West Longitude This is the geographic West longitude of the location for which to perform the calculations.

• east: Tuva lies between 89 degrees and 100 degrees east longitude, and 49 and 53 degrees north latitude.

• West: Today we crossed the line in West longitude ( Sunday ). 9 Sep 1857.

Modifies a noun

• 0�: The Prime Meridian Longitude 0° - at the Royal Observatory is the official baseline from which world time is measured.

• co-ordinate: The new boundary is defined by latitude and longitude co-ordinates.

• prise: A body known as the Board of Longitude was set up to administer and judge the longitude prize.

• scale: North is clearly indicated by the longitude scale at the bottom taken with the time from Greenwich at the top.

• difference: Secondly the longitude difference needs to be considered; 1° is equivalent to 4 minutes.

Noun used with modifier

• degree: For this is where the Earth's prime meridian, the line of zero degrees longitude, originates.

Preposition: in

• degree: To convert longitude in decimal degrees to decimal hours divide by 15.

Preposition: of

• object: The Astronomical Almanac reports the galactic longitude of the object in decimal degrees.

• source: Col. 44: LII ( D ) [ deg ] SAS task srcmatch Galactic longitude of the source in degrees.

• star: Ignoring nutation, luni-solar precession simply adds 50.35 arc-seconds per year to the ecliptic longitude of every star, leaving the ecliptic latitude unchanged.