天球和天球坐標

1、地地球球地地軸軸北北極極南南極極赤赤道道緯緯度度圈圈經(jīng)經(jīng)度度圈圈格林格林經(jīng)線經(jīng)線測者測者經(jīng)線經(jīng)線天天球球天天軸軸天天北北極極天天南南極極天天赤赤道道赤赤緯緯圈圈時時圈圈格林格林午圈午圈測者測者午圈午圈 EWGttEWGtt名）（當赤緯與測者緯度異名）（當赤緯與測者緯度同9090p QQM。 BBB CbabacBacacbAcbcbacossinsincoscoscoscossinsincoscoscoscossinsincoscoscoscBABACbACACBaCBCBAcossinsincoscoscoscossinsincoscoscoscossinsincoscoscoscCbBaA

2、sinsinsinsinsinsinbAActgCbctgcaBBctgCactgccAActgBcctgbaCCctgBactgbcBBctgAcctgabCCctgAbctgacoscossinsincoscossinsincoscossinsincoscossinsincoscossinsincoscossinsin基本式名稱基本式名稱球面任意三角形球面任意三角形球面直角三角形球面直角三角形(C=90 )正正 弦弦 公公 式式邊的余弦公式邊的余弦公式角的余弦公式角的余弦公式余余 切切 公公 式式cCaAsinsinsinsincAasinsinsinCababccossinsincosc

3、oscosabccoscoscosaCBCBAcossinsincoscoscosbCCctgAbctgacoscossinsinaBAcossincosctgAtgab sinctgAtgab sincBbsinsinsinAcacabcossinsincoscoscos348245523. 02.0166cos0.27122sin0.40112sin0.27122cos0.40112cos 0.2758b9.21981801.388112040147. 02.01660.27122cos2.0166sin0.401120.27122sincossinsinAtgtgtgBcBcctgact

4、gAAcbcbacossinsincoscoscostgbtgccbaA1sinsincoscos74477145. 00.271220.275810.27122sin0.2758sin0.40112coscostgtgA9.2198ABthcos)90sin()90sin()90cos()90cos()90cos(tcoscoscossinsinsinhtctgtctgAcos)90cos()90sin()90(sintgtttgctgAsinsincosAhhcos)90sin()90sin()90cos()90cos()90cos(tghtgAcoshcossincostcoscosco

5、ssinsinsinh0.1511cos0.0039cos2.1038cos0.0039sin2.1038sin323155988. 04.1081h052411156. 00.15112.1038sin0.1511sin2.1038cos0.0039sinsincostgtgtgtttgctgA082410393. 61ctgAtgA1.0811.81NEA 4.10812.10384.1081cos2.1038cos0.0039sincoshcossincostgtgtghtgA203532154. 01081181NEA tcoscoscossinsinsinh0.1326cos)0.2911cos(0.1843cos)0.2911sin(0.1843sin554302503. 01.1332h 19415727. 10.13260.1843sin0.1326sin0.1843cos)0.2911(sinsincostgtgtgtttgctgA621899578. 01ctgAtgA1 .2109 .1491801 .30NWA 1