Lines of Longitude (West)

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

West Lines

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