1.5 KiB
| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Carte du Ciel | 3/3 | https://en.wikipedia.org/wiki/Carte_du_Ciel | reference | science, encyclopedia | 2026-05-05T16:10:08.487603+00:00 | kb-cron |
Aside from the 120,000 stars of the Hipparcos Catalogue itself, the resulting Tycho-2 Catalogue (compiled at the Copenhagen University Observatory under the leadership of Erik Høg) became the largest, most accurate and most complete, star catalogue of the brightest stars on the sky. It was the basis for deriving positions for all fainter stars on the sky, until the Gaia 2 Catalog became available in 2017. Sean Urban of the US Naval Observatory wrote in 1998: The history of the Astrographic Catalogue endeavour is one of dedicated individuals devoting tedious decades of their careers to a single goal. Some believe it is also the story of how the best European observatories of the 19th century lost their leadership in astronomical research by committing so many resources to this one undertaking. Long portrayed as an object lesson in overambition, the Astrographic Catalogue has more recently turned into a lesson in the way that old data can find new uses.
== See also == Henry Chamberlain Russell
== References ==
== External links == [1] IAU Commission 8 Working Group, includes a photograph of nuns measuring the Vatican plate collection (1910–1921) [2] Histoire de l'Observatoire de Toulouse (with a section on the Carte du Ciel) [3] A compilation of historical material by the Palermo Observatory