Word: orion
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Dates: during 1890-1899
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...made here are, conducted with regard-first to the meteorology of the globe, with particular reference to cloudiness and other phenomena affecting the choice of astronomical stations; secondly, to to the fundamental principles of astronomical photography; thirdly, to the great nebulous region comprising a large part of the constellation Orion; fourthly, to the best form of standard light; and finally to other details of quantitative photometric work...
...boyden fund has been continued in Pern California and Cambridge in the last of which places Professor Pickering took personal charge of the work, making observations on Mars and experimenting in astronomical photography. Researches were made on the meteorology of the earth and on the nebulous region in Orion...