"Sciences humaines." . . "Popular Science." . . "Popular Science" . . . "SCIENCE Astronomy." . . "Science (General)" . . . . . . . . . . "The Herschel Objects, and How to Observe Them Exploring Sir William Herschel's Star Clusters, Nebulae, and Galaxies" . . "The Herschel Objects, and How to Observe Them" . "Deep-sky observers are always on the lookout for new observing challenges. This guide offers an opportunity to retrace the footsteps of Sir William Herschel, discoverer of Uranus and arguably the greatest visual observer and celestial explorer. It lists various impressive of Herschel's star clusters, nebulae and galaxies." . . . "Handbooks and manuals" . . . . . "The Herschel objects, and how to observe them" . . . "The Herschel Objects and How to Observe Them" . . . . . . . . . . . . . . . . . . "The Herschel objects and how to observe them" . . "The Herschel objects and how to observe them"@en . . . . . "Electronic books" . . . "Electronic books"@en . . . . . . "Astronomie Praktikum." . . "popularisering wetenschap." . . "Astronomie Observations." . . "Astronomy." . . "Astronomia podręczniki obserwacji." . . "astronomie." . . "Astronomie." . "Sciences sociales." . . "Astronomy Observers' manuals." . . "Electronic books." . . "ruimte (astronomie)" . . "Wetenschap." . . "Popular Science in Astronomy." . . "Popular Science in Astronomy" . "Ruimteonderzoek." . . "Astronomie Manuels d'observation." . .