In 1887 Grubb's firm built seven normal astrographs for the Carte du Ciel international photographic star catalogue project, 13-inch refracting telescopes all designed to produce uniform photographic plates.
Towards the end of the 1880s the observatory took part in the international "Carte du Ciel" project to map the heavens using the, then novel, technique of photography.
Subsequently, in the year 1887, he provided the same observatory with a 13-inch refractor to enable it to take part in the International Photographic Survey of the Heavens.
D'Oyly Carte Opera Company | L'Arc-en-Ciel | Mignet Pou-du-Ciel | San Pietro in Ciel d'Oro | Carte du Ciel | Richard D'Oyly Carte | The Carte Organisation | The Carte Noire Readers | D’Oyly Carte Opera Company | carte de visite | Carte de Séjour | Rupert D'Oyly Carte | L'"Arc-en-Ciel", 14 June 1934, landed for the first time at Fernando de Noronha | Cordes-sur-Ciel | CIEL-FM | Carte-de-Visite of a Lieutenant in the 14th (King's) Hussars. Henry Maull | Carte de visite |
From 1937 to 1947 he was also the director of the Pic du Midi observatory and directed the Carte du Ciel from 1922 to 1947.