The Hilbert lunar crater was named after a man that died in what year?
Hilbert (crater) Hilbert is a lunar crater that is located on the far side of the Moon, just past the southeast limb, it is named for David Hilbert. It lies just beyond the region of the surface that is occasionally brought into view due to libration, and so this feature cannot be observed directly from the Earth.
Mahler (crater) Mahler is a crater on Mercury. It has a diameter of 103 kilometers. Its name was adopted by the International Astronomical Union in 1976. Mahler is named for the Austrian composer Gustav Mahler, who lived from 1860 to 1911.