Pub Date : 2023-09-01DOI: 10.3724/sp.j.1440-2807.2023.09.61
Wolfgang Steinicke
{"title":"VISITORS TO THE HERSCHELS BETWEEN 1777 AND 1822","authors":"Wolfgang Steinicke","doi":"10.3724/sp.j.1440-2807.2023.09.61","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2023.09.61","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135735970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-01DOI: 10.3724/sp.j.1440-2807.2023.09.64
Padmaja Venugopal, K. Rupa, S.K. Uma, S. Balachandra Rao
: In classical Indian Astronomy the true positions of the five planets are determined by repeatedly applying two equations, viz the equation of centre ( mandaphala ) and the equation of conjunction ( śīghraphala ). In the present paper we concentrate on the equation of conjunction ( śīghraphala ). Here, conjunction refers to the conjunction of a planet with the Sun, considering the ‘anomaly’ of their mean positions. In this process the concepts involved are the śīghra anomaly ( śīghrakendra ), śīghraparidhi (periphery) and the śīghrakarņa (hypotenuse).
{"title":"THE EQUATION OF THE CONJUNCTION (ŚĪGHRAPHALA) OF THE PLANETS IN CLASSICAL INDIAN ASTRONOMY","authors":"Padmaja Venugopal, K. Rupa, S.K. Uma, S. Balachandra Rao","doi":"10.3724/sp.j.1440-2807.2023.09.64","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2023.09.64","url":null,"abstract":": In classical Indian Astronomy the true positions of the five planets are determined by repeatedly applying two equations, viz the equation of centre ( mandaphala ) and the equation of conjunction ( śīghraphala ). In the present paper we concentrate on the equation of conjunction ( śīghraphala ). Here, conjunction refers to the conjunction of a planet with the Sun, considering the ‘anomaly’ of their mean positions. In this process the concepts involved are the śīghra anomaly ( śīghrakendra ), śīghraparidhi (periphery) and the śīghrakarņa (hypotenuse).","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135736356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.3724/sp.j.1440-2807.2023.06.40
Joseph S. Tenn
The Astronomical Genealogy Project (AstroGen) has been underway since January 2013. This project of the Historical Astronomy Division (HAD) of the American Astronomical Society (AAS) has been online since July 2020, courtesy of the AAS. The volunteers of the AstroGen team have systematically searched online directories, mostly at individual university libraries, for astronomy-related doctoral theses equivalent to the modern, research-based Ph.D. We now claim to be 'nearly complete' for 38 countries, although some have not been updated for a year or two or three. The website contains a page for each astronomer and advisor, with links to the persons, universities, institutes, and the theses themselves. More than two-thirds of the theses are online in full, although some require access to a library with a subscription. There is information about nearly 37,000 individuals who have earned astronomy-related doctorates and another 5400 who have supervised them, but may not have earned such degrees themselves. Most of the latter have not yet been evaluated, but probably a majority earned doctorates in other fields, such as physics or geology. We present some of the results of our research and discuss ten ways the reader might make use of the project.
{"title":"THE ASTRONOMY GENEALOGY PROJECT IS TEN YEARS OLD: HERE ARE TEN WAYS YOU CAN USE IT","authors":"Joseph S. Tenn","doi":"10.3724/sp.j.1440-2807.2023.06.40","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2023.06.40","url":null,"abstract":"The Astronomical Genealogy Project (AstroGen) has been underway since January 2013. This project of the Historical Astronomy Division (HAD) of the American Astronomical Society (AAS) has been online since July 2020, courtesy of the AAS. The volunteers of the AstroGen team have systematically searched online directories, mostly at individual university libraries, for astronomy-related doctoral theses equivalent to the modern, research-based Ph.D. We now claim to be 'nearly complete' for 38 countries, although some have not been updated for a year or two or three. The website contains a page for each astronomer and advisor, with links to the persons, universities, institutes, and the theses themselves. More than two-thirds of the theses are online in full, although some require access to a library with a subscription. There is information about nearly 37,000 individuals who have earned astronomy-related doctorates and another 5400 who have supervised them, but may not have earned such degrees themselves. Most of the latter have not yet been evaluated, but probably a majority earned doctorates in other fields, such as physics or geology. We present some of the results of our research and discuss ten ways the reader might make use of the project.","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135142395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.3724/sp.j.1440-2807.2023.06.57
Virginia Trimble
{"title":"<italic>With Stars in Their Eyes: The Extraord-inary Lives and Enduring Genius of Aden and Marjorie Meinel</italic>, by James B. Breck-ingridge and Alec M. Pridgeon, with an invited chapter by Donald E. Osborn.","authors":"Virginia Trimble","doi":"10.3724/sp.j.1440-2807.2023.06.57","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2023.06.57","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135142396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.3724/sp.j.1440-2807.2023.06.34
K. Rupa, S.K. Uma, Padmaja Venugopal, S. Balachandra Rao
{"title":"REFERENCES TO 'PARALLEL PHENOMENON’ IN INDIAN ASTRONOMY AND INSCRIPTIONS","authors":"K. Rupa, S.K. Uma, Padmaja Venugopal, S. Balachandra Rao","doi":"10.3724/sp.j.1440-2807.2023.06.34","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2023.06.34","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135142404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.3724/sp.j.1440-2807.2023.06.51
Clifford Cunningham
{"title":"<italic>Arithmetic in the Thought of Gerbert of Aurillac</italic>, by Marek Otisk.","authors":"Clifford Cunningham","doi":"10.3724/sp.j.1440-2807.2023.06.51","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2023.06.51","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135142403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.3724/sp.j.1440-2807.2023.06.33
Lars Gislén
: The Tamil procedures for computing the circumstances of eclipses were reported by the French astronomer Guillaume Le Gentil from his visit to India in the 1760's. This paper investigates these Tamil procedures for a solar eclipse, focusing on the procedures for finding the eclipse parallax which are needed to describe the local appearance of an eclipse. These procedures constitute the essential difference between a solar and lunar eclipse. The procedures are compared with the parallax procedures in Sūryasiddhānta and give similar results. It is found that there seems to be little theoretical background to the Tamil procedures, although they work rather well in practice. There are parallels with parallax procedures in Southeast Asian traditional astronomy. The Tamil calculations of the circumstances of the lunar eclipse 13 December 1769 have earlier been analyzed by Otto Neugebauer in a paper in Isis .
{"title":"ANALYSIS OF THE TAMIL PARALLAX PROCEDURES IN LE GENTIL'S REPORT OF 1776","authors":"Lars Gislén","doi":"10.3724/sp.j.1440-2807.2023.06.33","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2023.06.33","url":null,"abstract":": The Tamil procedures for computing the circumstances of eclipses were reported by the French astronomer Guillaume Le Gentil from his visit to India in the 1760's. This paper investigates these Tamil procedures for a solar eclipse, focusing on the procedures for finding the eclipse parallax which are needed to describe the local appearance of an eclipse. These procedures constitute the essential difference between a solar and lunar eclipse. The procedures are compared with the parallax procedures in Sūryasiddhānta and give similar results. It is found that there seems to be little theoretical background to the Tamil procedures, although they work rather well in practice. There are parallels with parallax procedures in Southeast Asian traditional astronomy. The Tamil calculations of the circumstances of the lunar eclipse 13 December 1769 have earlier been analyzed by Otto Neugebauer in a paper in Isis .","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135144009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.3724/sp.j.1440-2807.2023.06.59
Clifford Cunningham
{"title":"<italic>Uranus and Neptune</italic>, by Carolyn Kennett.","authors":"Clifford Cunningham","doi":"10.3724/sp.j.1440-2807.2023.06.59","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2023.06.59","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135142402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.3724/sp.j.1440-2807.2023.06.31
B.S. Shylaja
{"title":"THE TREASURE OF ASTRONOMICAL RECORDS IN SOUTHEAST ASIAN STONE INSCRIPTIONS","authors":"B.S. Shylaja","doi":"10.3724/sp.j.1440-2807.2023.06.31","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2023.06.31","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135142400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.3724/sp.j.1440-2807.2023.06.56
Clifford Cunningham
{"title":"<italic>Cosmology in the Early Modern Age: A Web of Ideas</italic>, by Paolo Bussotti and Brunello Lotti.","authors":"Clifford Cunningham","doi":"10.3724/sp.j.1440-2807.2023.06.56","DOIUrl":"https://doi.org/10.3724/sp.j.1440-2807.2023.06.56","url":null,"abstract":"","PeriodicalId":42167,"journal":{"name":"Journal of Astronomical History and Heritage","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135142401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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