Lines of Longitude (East)

Longitude is a geographic coordinate that specifies the east-west position of a point on the Earth's surface. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda (λ). Points with the same longitude lie in lines running from the North Pole to the South Pole. By convention, one of these, the Prime Meridian, which passes through the Royal Observatory, Greenwich, England, was intended to establish the position of zero degrees longitude. The longitude of other places was to be measured as the angle east or west from the Prime Meridian, ranging from 0° at the Prime Meridian to +180° eastward and −180° westward. Specifically, it is the angle between a plane containing the Prime Meridian and a plane containing the North Pole, South Pole and the location in question. (This forms a right-handed coordinate system with the z axis (right hand thumb) pointing from the Earth's center toward the North Pole and the x axis (right hand index finger) extending from Earth's center through the equator at the Prime Meridian.)A location's north-south position along a meridian is given by its latitude, which is (not quite exactly) the angle between the local vertical and the plane of the Equator.

Longitude, Wikipedia

East Lines

 * 1) 1st meridian east
 * 2) 2nd meridian east
 * 3) 3rd meridian east
 * 4) 4th meridian east
 * 5) 5th meridian east
 * 6) 6th meridian east
 * 7) 7th meridian east
 * 8) 8th meridian east
 * 9) 9th meridian east
 * 10) 10th meridian east
 * 11) 11th meridian east
 * 12) 12th meridian east
 * 13) 13th meridian east
 * 14) 14th meridian east
 * 15) 15th meridian east
 * 16) 16th meridian east
 * 17) 17th meridian east
 * 18) 18th meridian east
 * 19) 19th meridian east
 * 20) 20th meridian east
 * 21) 21st meridian east
 * 22) 22nd meridian east
 * 23) 23rd meridian east
 * 24) 24th meridian east
 * 25) 25th meridian east
 * 26) 26th meridian east
 * 27) 27th meridian east
 * 28) 28th meridian east
 * 29) 29th meridian east
 * 30) 30th meridian east
 * 31) 31st meridian east
 * 32) 32nd meridian east
 * 33) 33rd meridian east
 * 34) 34th meridian east
 * 35) 35th meridian east
 * 36) 36th meridian east
 * 37) 37th meridian east
 * 38) 38th meridian east
 * 39) 39th meridian east
 * 40) 40th meridian east
 * 41) 41st meridian east
 * 42) 42nd meridian east
 * 43) 43rd meridian east
 * 44) 44th meridian east
 * 45) 45th meridian east
 * 46) 46th meridian east
 * 47) 47th meridian east
 * 48) 48th meridian east
 * 49) 49th meridian east
 * 50) 50th meridian east
 * 51) 51st meridian east
 * 52) 52nd meridian east
 * 53) 53rd meridian east
 * 54) 54th meridian east
 * 55) 55th meridian east
 * 56) 56th meridian east
 * 57) 57th meridian east
 * 58) 58th meridian east
 * 59) 59th meridian east
 * 60) 60th meridian east
 * 61) 61st meridian east
 * 62) 62nd meridian east
 * 63) 63rd meridian east
 * 64) 64th meridian east
 * 65) 65th meridian east
 * 66) 66th meridian east
 * 67) 67th meridian east
 * 68) 68th meridian east
 * 69) 69th meridian east
 * 70) 70th meridian east
 * 71) 71st meridian east
 * 72) 72nd meridian east
 * 73) 73rd meridian east
 * 74) 74th meridian east
 * 75) 75th meridian east
 * 76) 76th meridian east
 * 77) 77th meridian east
 * 78) 78th meridian east
 * 79) 79th meridian east
 * 80) 80th meridian east
 * 81) 81st meridian east
 * 82) 82nd meridian east
 * 83) 83rd meridian east
 * 84) 84th meridian east
 * 85) 85th meridian east
 * 86) 86th meridian east
 * 87) 87th meridian east
 * 88) 88th meridian east
 * 89) 89th meridian east
 * 90) 90th meridian east
 * 91) 91st meridian east
 * 92) 92nd meridian east
 * 93) 93rd meridian east
 * 94) 94th meridian east
 * 95) 95th meridian east
 * 96) 96th meridian east
 * 97) 97th meridian east
 * 98) 98th meridian east
 * 99) 99th meridian east
 * 100) 100th meridian east
 * 101) 101st meridian east
 * 102) 102nd meridian east
 * 103) 103rd meridian east
 * 104) 104th meridian east
 * 105) 105th meridian east
 * 106) 106th meridian east
 * 107) 107th meridian east
 * 108) 108th meridian east
 * 109) 109th meridian east
 * 110) 110th meridian east
 * 111) 111th meridian east
 * 112) 112th meridian east
 * 113) 113th meridian east
 * 114) 114th meridian east
 * 115) 115th meridian east
 * 116) 116th meridian east
 * 117) 117th meridian east
 * 118) 118th meridian east
 * 119) 119th meridian east
 * 120) 120th meridian east
 * 121) 121st meridian east
 * 122) 122nd meridian east
 * 123) 123rd meridian east
 * 124) 124th meridian east
 * 125) 125th meridian east
 * 126) 126th meridian east
 * 127) 127th meridian east
 * 128) 128th meridian east
 * 129) 129th meridian east
 * 130) 130th meridian east
 * 131) 131st meridian east
 * 132) 132nd meridian east
 * 133) 133rd meridian east
 * 134) 134th meridian east
 * 135) 135th meridian east
 * 136) 136th meridian east
 * 137) 137th meridian east
 * 138) 138th meridian east
 * 139) 139th meridian east
 * 140) 140th meridian east
 * 141) 141st meridian east
 * 142) 142nd meridian east
 * 143) 143rd meridian east
 * 144) 144th meridian east
 * 145) 145th meridian east
 * 146) 146th meridian east
 * 147) 147th meridian east
 * 148) 148th meridian east
 * 149) 149th meridian east
 * 150) 150th meridian east
 * 151) 151st meridian east
 * 152) 152nd meridian east
 * 153) 153rd meridian east
 * 154) 154th meridian east
 * 155) 155th meridian east
 * 156) 156th meridian east
 * 157) 157th meridian east
 * 158) 158th meridian east
 * 159) 159th meridian east
 * 160) 160th meridian east
 * 161) 161st meridian east
 * 162) 162nd meridian east
 * 163) 163rd meridian east
 * 164) 164th meridian east
 * 165) 165th meridian east
 * 166) 166th meridian east
 * 167) 167th meridian east
 * 168) 168th meridian east
 * 169) 169th meridian east
 * 170) 170th meridian east
 * 171) 171st meridian east
 * 172) 172nd meridian east
 * 173) 173rd meridian east
 * 174) 174th meridian east
 * 175) 175th meridian east
 * 176) 176th meridian east
 * 177) 177th meridian east
 * 178) 178th meridian east
 * 179) 179th meridian east
 * 180) 180th meridian east