Partial eclipse of the Moon, 24 October 1874.
© Science Museum / Science & Society Picture Library
Colour print by Etienne Leopold Trouvelot (1827-1895), one of a set of 15, made by him whilst in the United States between 1872 and 1881. The lithographs are based on the French artist's observations from various American observatories. Titled 'Partial Eclipse of the Moon', the print shows the appearance of our lunar neighbour in 1882 as it pases through the Earth's shadow. The shadowed area, marked by the curved line of our planet, appears pale red due to refracted (bent) sunlight reaching the lunar surface after pasing through the Earth's atmosphere.