北京的经纬度谁知到？

北京位于东经116。46度 北纬 39.92 度 北京市经纬度 地名 经度 纬度 卫星经度 方位 俯仰 极化 北京116.46 39.92 138 148.40 38.73 23.69167 平谷117.1 40.13 138 149.35 38.81 22.9376 密云116.85 40.37 138 149.15 38.48 22.99643 顺义116.65 40.13 138 148.76 38.62 23.35859 通县116.67 39.92 138 148.68 38.83 23.49548 怀柔116.62 40.32 138 148.82 38.43 23.24646 大兴116.33 39.73 138 148.13 38.85 23.9557 房山115.98 39.72 138 147.67 38.70 24.28894 昌平116.2 40.22 138 148.23 38.33 23.70837 延庆115.97 40.47 138 148.06 38.00 23.73232 我们现在都是用得北京时间，而北京时间是政府为了全国能够统一工作，便于行政管理，但是在预测时是要用真太阳时的，为什么很多易经书上没有提到“真太阳时”呢？因为古代没有现在的钟表时、北京时等，他们用得就是“真太阳时”，就象是“日冕”，用一根直杆插在地上，看太阳的过宫来定时间，所以预测时一定要换算成真太阳时来进行预测，不论是排四柱、起奇门遁甲局等都是需要的，否则差之毫厘，谬以千里！ 在地球的北半球

北京：东经116.3北纬40
天津：东经117.3北纬39
上海：东经121.4北纬31.1
重庆：东经106.4北纬29.6

我不太清楚楼主问的什么，Longitude/Latitude就是经纬度，而北京五四不是坐标，是坐标系，ICA-75椭球、长轴105m。
mapinfo里的Longitude/Latitude中的category members里有许多坐标系可以选择，不过我印象中没有北京54。可以在投影中选择Pulkovo坐标系—-1942基准面(Mapinfo中代号为1001)代替北京54坐标系
也可以自己写个prj
“— Gauss-Kruger (Xian1980 3-degree zone) —”
“GK Zone 25 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 75, 0, 1, 25500000, 0
“GK Zone 26 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 78, 0, 1, 26500000, 0
“GK Zone 27 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 81, 0, 1, 27500000, 0
“GK Zone 28 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 84, 0, 1, 28500000, 0
“GK Zone 29 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 87, 0, 1, 29500000, 0
“GK Zone 30 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 90, 0, 1, 30500000, 0
“GK Zone 31 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 93, 0, 1, 31500000, 0
“GK Zone 32 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 96, 0, 1, 32500000, 0
“GK Zone 33 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 99, 0, 1, 33500000, 0
“GK Zone 34 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 102, 0, 1, 34500000, 0
“GK Zone 35 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 105, 0, 1, 35500000, 0
“GK Zone 36 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 108, 0, 1, 36500000, 0
“GK Zone 37 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 111, 0, 1, 37500000, 0
“GK Zone 38 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 114, 0, 1, 38500000, 0
“GK Zone 39 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 117, 0, 1, 39500000, 0
“GK Zone 40 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 120, 0, 1, 40500000, 0
“GK Zone 41 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 123, 0, 1, 41500000, 0
“GK Zone 42 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 126, 0, 1, 42500000, 0
“GK Zone 43 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 129, 0, 1, 43500000, 0
“GK Zone 44 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 132, 0, 1, 44500000, 0
“GK Zone 45 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 135, 0, 1, 45500000, 0

“— Gauss-Kruger (Xian1980 6-degree zone) —”
“GK Zone 13 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 75, 0, 1, 13500000, 0
“GK Zone 14 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 81, 0, 1, 14500000, 0
“GK Zone 15 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 87, 0, 1, 15500000, 0
“GK Zone 16 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 93, 0, 1, 16500000, 0
“GK Zone 17 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 99, 0, 1, 17500000, 0
“GK Zone 18 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 105, 0, 1, 18500000, 0
“GK Zone 19 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 111, 0, 1, 19500000, 0
“GK Zone 20 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 117, 0, 1, 20500000, 0
“GK Zone 21 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 123, 0, 1, 21500000, 0
“GK Zone 22 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 129, 0, 1, 22500000, 0
“GK Zone 23 (Xian1980)”, 8, 9999, 31, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 135, 0, 1, 23500000, 0

“— Gauss-Kruger (Beijing1954 3-degree zone) —”
“GK Zone 25 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 75, 0, 1, 25500000, 0
“GK Zone 26 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 78, 0, 1, 26500000, 0
“GK Zone 27 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 81, 0, 1, 27500000, 0
“GK Zone 28 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 84, 0, 1, 28500000, 0
“GK Zone 29 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 87, 0, 1, 29500000, 0
“GK Zone 30 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 90, 0, 1, 30500000, 0
“GK Zone 31 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 93, 0, 1, 31500000, 0
“GK Zone 32 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 96, 0, 1, 32500000, 0
“GK Zone 33 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 99, 0, 1, 33500000, 0
“GK Zone 34 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 102, 0, 1, 34500000, 0
“GK Zone 35 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 105, 0, 1, 35500000, 0
“GK Zone 36 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 108, 0, 1, 36500000, 0
“GK Zone 37 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 111, 0, 1, 37500000, 0
“GK Zone 38 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 114, 0, 1, 38500000, 0
“GK Zone 39 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 117, 0, 1, 39500000, 0
“GK Zone 40 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 120, 0, 1, 40500000, 0
“GK Zone 41 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 123, 0, 1, 41500000, 0
“GK Zone 42 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 126, 0, 1, 42500000, 0
“GK Zone 43 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 129, 0, 1, 43500000, 0
“GK Zone 44 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 132, 0, 1, 44500000, 0
“GK Zone 45 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 135, 0, 1, 45500000, 0

“— Gauss-Kruger (Beijing1954 6-degree zone) —”
“GK Zone 13 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 75, 0, 1, 13500000, 0
“GK Zone 14 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 81, 0, 1, 14500000, 0
“GK Zone 15 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 87, 0, 1, 15500000, 0
“GK Zone 16 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 93, 0, 1, 16500000, 0
“GK Zone 17 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 99, 0, 1, 17500000, 0
“GK Zone 18 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 105, 0, 1, 18500000, 0
“GK Zone 19 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 111, 0, 1, 19500000, 0
“GK Zone 20 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 117, 0, 1, 20500000, 0
“GK Zone 21 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 123, 0, 1, 21500000, 0
“GK Zone 22 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 129, 0, 1, 22500000, 0
“GK Zone 23 (Beijing1954)”, 8, 9999, 3, 24, -123, -94, -0.02, 0.25, 0.13, 1.1, 0, 7, 135, 0, 1, 23500000, 0

将以上内容拷贝到Mapinfo下的一个坐标系文件中(mapInfow.prj )，等保存后，再在Mapinfo中为地图添加坐标系时就有北京54坐标系和西安80坐标系了。

1. 数据分析，x7位，y8位，y前两位是投影带代号，为34号带，应为3度带投影，投影带中央子午线经度为102度。

2. 北京54坐标系转化为经纬度为:纬度：26:14:13.58804N；经度：101:54:07.25814E。

3. 该点在：四川省攀枝花市仁和区平地镇迤沙拉社区村，金沙江旁边。

从你给出的坐标可以知道是54系的3度带坐标的36带成果，中央子午线为108度。转换成果为
108°24′15.8136″ , 37°16′09.5231″ 1954北京坐标系的经纬度。