태양의 운행 > 자연과학

<숭정역서>, <역상고성>, <역상고성후편>의 태양편이 출간된 후에 이 책들의 내용을 더 잘 이해하고 더 나아가 서양과 동양 그리고 조선의 여러 역사천문역법책들에 기록되어 있는 태양의 운행과 관련된 이론과 관측 내용을 더 잘 연구하고, 이해하기 위하여 기본 천문 및 수학 지식들을 이 책에 수록하였다.

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들어가면서 ·············································································································································3

제1부 태양의 운동에 대한 역사적인 고찰 ·····················································13

제1장 태양의 운동에 대하여 ·························································································15

제2장 프톨레마이오스의 《알마게스트(Almagest)》에 제시된 방법으로 태양 황경 구하기 ································································································18

제3장 ‘시헌력’의 경우 ···································································································24

제4장 《알마게스트》에 제시된 방법으로 서기 2000년의 태양 이심원의 ‘양심차’와 ‘근지점 경도’ 구하기 ·······································································28

제5장 타원 궤도를 이용한 태양의 황도 구하기 ···························································30

제6장 절기 시각 구하기 ································································································33

제7장 균시차 ··················································································································38

제8장 대기 굴절 ·············································································································40

제9장 지평시차 ··············································································································47

제10장 태양의 운동 모델 ································································································54

제2부 태양 위치에 대한 좌표 변환 ································································77

제11장 천구좌표의 변환 ·································································································79

제12장 아날레마(Analema) ···························································································85

제13장 시차각(parallactic angle) ···············································································87

제14장 남중하는 천체의 고도로부터 황경과 적경 구하기 ············································89

제15장 낮의 길이 ·············································································································92

제16장 천구 상에서 황도와 적도 ····················································································96

제17장 황도 상승(ecliptic ascension) ········································································98

제3부 《알마게스트》의 구면삼각법을 이용한 여러 계산 ·····························101

제18장 《알마게스트》 방법으로 수직행구(Sphaera Recta)에서 상승 시간 계산 ···· 103

제19장 《알마게스트》 방법으로 경사행구(sphaera obliqua)에서 상승 시간 계산 ··································································································106

제20장 상승 차이(Ascensional Difference)와 경사행구(sphaera obliqua)에서 뜨는 시간 계산 ··································································································111

제21장 황도와 자오선 사이의 각도 계산 ·····································································115

제22장 황도와 지평선 사이의 각도 계산 ·····································································118

제23장 황도와 고도권(Altitude Circle) 사이의 각도 계산 ·······································120

제4부 현대천문학으로 풀어 본 태양의 운동 ···············································127

제24장 수직막대 해시계의 막대그림자 끝의 자취 ······················································129

제25장 지구의 궤도는 타원궤도인가? (해석학적인 접근) ··········································133

제26장 지구의 궤도는 타원궤도인가? (수치해석학적인 접근) ···································148

제27장 대략의 태양의 위치를 정하는 또 다른 방법 ····················································155

제28장 지구 궤도 자체의 세차운동에 대한 이론적 고찰 ············································160

제29장 지구 자전축의 세차운동에 대한 이론적 고찰 ·················································166

제30장 우리은하 내에서의 태양의 운동 ······································································178

제31장 국부 정지 표준 좌표계 ·····················································································184

제32장 우주배경복사에 대한 지구의 진행 속도 ··························································186

나가면서 ···························································································································188

부 록 ··············································································································193

부록 1 허원(許遠)의 《세초류휘(細草類彙)》에 기술된 태양의 운행 ····························195

부록 2 남병길의 《시헌기요(時憲紀要)》에 기록된 태양의 운행 ··································209

부록 3 《칠정산내편》에 기록된 태양의 운동 ·······························································215

저자소개

최승언 

서울대학교 천문학과를 졸업한 후 미국 미네소타대학교 대학원에서 천체물리학으로 박사학위를 받았다. 서울대학교 지구과학교육과 교수, 한국지구과학회장을 역임하였으며, 지금은 서울대학교 명예교수이다. 저서로는 『천문학의 이해』, 『천체물리학의 이해』, 『최승언 교수의 천체지구과학 강의』, 『숭정역서에 기록된 태양의 운동』, 『역상고성에 기록된 태양의 운동』, 『역상고성후편에 기록된 태양의 운동』 등이 있다.

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