1、2022-12-293STF22022-12-293STF32022-12-293STF42022-12-293STF52022-12-293STF62022-12-293STF72022-12-293STF82022-12-293STF92022-12-293STF102022-12-293STF112022-12-293STF122022-12-293STF132022-12-293STF142022-12-293STF15北天极南天极黄道天球赤道赤经赤纬太阳星体地球地球赤道本初子午圈2022-12-293STF162022-12-293STF172022-12-293STF182022-
2、12-293STF19地球轴的进动（岁差）地球轴的进动（岁差）2022-12-293STF202022-12-293STF212022-12-293STF222022-12-293STF232022-12-293STF242022-12-293STF25赤道和本初子午线赤道和本初子午线 2022-12-293STF26大地坐标系和空间直角坐标系大地坐标系和空间直角坐标系 2022-12-293STF272022-12-293STF282022-12-293STF292022-12-293STF302022-12-293STF312022-12-293STF322022-12-293STF33中
3、央经线XY500km2022-12-293STF342022-12-293STF35我国小比例尺图（圆锥投影）2022-12-293STF362022-12-293STF37XYZxyz天球坐标系地心s春分点2022-12-293STF382022-12-293STF392022-12-293STF402022-12-293STF412022-12-293STF422022-12-293STF432022-12-293STF442022-12-293STF452022-12-293STF462022-12-293STF472022-12-293STF482022-12-293STF49天体的视运动（apparent motion）此图为北极拍摄2022-12-293STF50行星的视运动动画2022-12-293STF512022-12-293STF52英国伦敦格林威治（一译格林尼治）天文台（旧址）埃里中星仪所在的子午线作为时间和经度计量的标准参考子午线，称为本初子午线，又称零子午线。图中是摆放中星仪的屋子，经线穿过屋子中央。2022-12-293STF532022-12-293STF542022-12-293STF552022-12-293STF562022-12-293STF572022-12-293STF582022-12-293STF592022-12-293STF60
