Astronomische Diagramm zeigt eine Eule, Rabe, reich verzierte Schüssel, Sextant, Schlange, Katze, Wolf, Zentauren, Luftpumpe und ein Schiff bildet die Sternbilder. Hydra war einer der 48 Sternbilder von dem 2. Jahrhundert Astronom Ptolemäus aufgeführt, und es bleibt eines der 88 m
Dieses Bild kann kleinere Mängel aufweisen, da es sich um ein historisches Bild oder ein Reportagebild handel
Astronomical chart showing an owl, raven, ornate bowl, sextant, snake, cat, wolf, centaur, air pump, and a ship forming the constellations. Hydra was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations defined by the International Astronomical Union. Hydra is the largest of the 88 modern constellations, measuring 1303 square degrees. Corvus is a small constellation in the southern sky. Its name is Latin for raven or crow. It includes only 11 stars visible to the naked eye. It was one of the 48 constellations listed by Ptolemy, who only counted 7 stars, and it remains one of the 88 modern constellations. Noctua, Latin for little owl, was a seldom mentioned constellation that was once placed between the end of the tail of Hydra, the sea-serpent and Libra. The origins of the constellation are unknown. It is now obsolete. Crater constellation is Latin for cup, and in Greek mythology it is identified with the cup of the god Apollo. Sextans is a minor equatorial constellation which was introduced in 1687 by Johannes Hevelius. Its name is Latin for the astronomical sextant, an instrument that Hevelius made frequent use of in his observations. Felis, Latin for cat, was a constellation created by French astronomer Jérome Lalande in 1799. It is now obsolete. Antlia is a constellation in the southern sky. Its name means pump and it specifically represents an air pump. It was created in 1756 by the French astronomer Abbé Nicolas Louis de Lacaille and originally named Antlia pneumatica (machine pneumatique) to commemorate the air pump invented by the French physicist Denis Papin. Urania's Mirror is a boxed set of 32 constellation cards first published by Samuel Leigh of the Strand, London, in or shortly before 1825. An unidentified lady, referred to by her nom-de-plume, Jehoshaphat Aspin, designed these whimsical astronomy cards. The engraver was Sidney Hall.
