Astrophysics.- Sandage (Allan) "Current Problems in the Extragalactic

Astrophysics.- Sandage (Allan) "Current Problems in the Extragalactic Distance Scale", in The Astrophysical Journal, vol.127, pp.513-526, library half cloth, 1958; "The Ability of the 200-Inch Telescope to Discriminate Between Selected World Models" in The Astrophysical Journal, vol.133, pp.355-392, library rexine, 1961 § Russell (Henry Norris) "The Stellar Magnitudes of the Sun, Moon, and Planets" in The Astrophysical Journal, vol. 43, pp.103-129, library half calf, joints split, some wear, 1916 § Michelson (Albert A.) "The Effect of the Earth's Rotation on the Velocity of Light", 2 parts in The Astrophysical Journal, vol. 61, pp.137-145, library half calf, head of spine chipped with loss, rubbed, 1925, ex-library copies with ink-stamps, library paper labels to spines, Chicago; and another volume of the same journal, 8vo (5) *** Sandage's first mentioned work re-evaluates the Hubble constant, leading to a major discovery that the universe is significantly older than initially thought. This result resolves a major contradiction with the age of the Earth and represents a key turning point in the history of cosmology.

Estimate:$265.19

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