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The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts ...
The computer program pdfTeX is an extension of Knuth's typesetting program TeX, and was originally written and developed into a publicly usable product by Hàn Thế Thành as a part of the work for his PhD thesis at the Faculty of Informatics, Masaryk University, Brno, Czech Republic.
A short-title catalogue (or catalog) is a bibliographical resource that lists printed items in an abbreviated fashion, recording the most important words of their titles. The term is commonly encountered in the context of early modern books, which frequently have lengthy, descriptive titles on their title pages .
The New General Catalogue of Nebulae and Clusters of Stars (abbreviated NGC) is an astronomical catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, including galaxies, star clusters and emission nebulae.
youtube-dl <url> The path of the output can be specified as: (file name to be included in the path) youtube-dl -o <path> <url> To see the list of all of the available file formats and sizes: youtube-dl -F <url> The video can be downloaded by selecting the format code from the list or typing the format manually: youtube-dl -f <format/code> <url>
The Yale Bright Star Catalogue has been steadily enhanced since the Yale astronomer Frank Schlesinger published the first version in 1930; even though the YBS is limited to the 9110 objects already in the catalog, the data for the objects already listed is corrected and extended, and it is appended with a comments section about the objects. The ...
With the Catalog opened flat, the reader might find the large page on the left full of text and intriguing illustrations from a volume of Joseph Needham's Science and Civilization in China, showing and explaining an astronomical clock tower or a chain-pump windmill, while on the right-hand page are a review of a beginners' guide to modern ...
1984 (stylized in Roman numerals as MCMLXXXIV) is the sixth studio album by American rock band Van Halen, released on January 9, 1984. [2] It was the last Van Halen studio album until A Different Kind of Truth (2012) to feature lead singer David Lee Roth, who left the band in 1985 following creative differences.