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UID:894e6c801bb0c597c72297c186395526
CATEGORIES:Guest Speaker Night
CREATED:20221003T160045
SUMMARY:Guest Speaker - Les Dalrymple - SASI
LOCATION:of event: Green Point Observatory
DESCRIPTION:The life, times, instruments and observations of Johannes Hevelius born 161
 1Hevelius is arguably the best and most productive observational astronomer
  of the 17th century. Despite not being a “professional” scientist he made 
 several important discoveries using for the most part self-made equipment i
 n his home observatory which was the best equipped in the world at the time
  – pre-dating both Greenwich and Paris Observatories by at least two decade
 s. Hevelius founded the branch of science now known as “selenography” – the
  mapping and study of the Moon’s surface features.\nHis remarkable second w
 ife Catherina Elisabetha Koopmann who became his faithful skilful assistant
 , is probably the earliest known female astronomer – predating Caroline Her
 schel by over a century. Catherina directly contributed to his observations
  then collated, edited and published his two largest works after Hevelius’ 
 death in 1687.\n \n\nLes Dalrympleis a longtime member of SASI and is a pas
 t President of our society. He is a prolific recorder and documenter of all
  things astronomical in the celestial sphere and shares his passion for the
 m regularly on the SASI forum website. He has contributed many written arti
 cles to the American Sky and Telescope magazine as well as the Australian v
 ersion of Sky and Telescope.\n \n
X-ALT-DESC;FMTTYPE=text/html:<h2>The life, times, instruments and observations of Johannes Hevelius born
  1611</h2><p>Hevelius is arguably the best and most productive observationa
 l astronomer of the 17th century. Despite not being a “professional” scient
 ist he made several important discoveries using for the most part self-made
  equipment in his home observatory which was the best equipped in the world
  at the time – pre-dating both Greenwich and Paris Observatories by at leas
 t two decades. Hevelius founded the branch of science now known as “selenog
 raphy” – the mapping and study of the Moon’s surface features.</p><p>His re
 markable second wife Catherina Elisabetha Koopmann who became his faithful 
 skilful assistant, is probably the earliest known female astronomer – preda
 ting Caroline Herschel by over a century. Catherina directly contributed to
  his observations then collated, edited and published his two largest works
  after Hevelius’ death in 1687.</p><p>&nbsp;</p><p><img src="https://www.sa
 si.net.au/images/articles/Les_Dalrymple_small.jpg" alt="Les Dalrymple small
 " style="margin-right: 10px; float: left;" /></p><h2>Les Dalrymple</h2><p>i
 s a longtime member of SASI and is a past President of our society. He is a
  prolific recorder and documenter of all things astronomical in the celesti
 al sphere and shares his passion for them regularly on the SASI forum websi
 te. He has contributed many written articles to the American Sky and Telesc
 ope magazine as well as the Australian version of Sky and Telescope.</p><p>
 &nbsp;</p>
DTSTAMP:20260616T170537
DTSTART;TZID=Australia/Sydney:20230601T193000
DTEND;TZID=Australia/Sydney:20230601T213000
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