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Angular diameter: the angle subtended by an object
Angular diameter: the angle subtended by an object
An 19th century depiction of the apparent size of the Sun as seen from the Solar System's planets (incl. 72 Feronia and the then most outlying known a
An 19th century depiction of the apparent size of the Sun as seen from the Solar System's planets (incl. 72 Feronia and the then most outlying known asteroid, here called Maximiliana).
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The PSO-1 reticle in a Dragunov sniper rifle has markings with 1-mrad spacing, which can be used to compensate for wind drift, impact correction or ra
The PSO-1 reticle in a Dragunov sniper rifle has markings with 1-mrad spacing, which can be used to compensate for wind drift, impact correction or range estimation.
The Palais de Rumine, one of the former buildings of the University of Lausanne.
The Palais de Rumine, one of the former buildings of the University of Lausanne.
Mildot chart as used by snipers.
Mildot chart as used by snipers.
Estimating range using the hands on an extended arm as a reference for the angular size in mrad.
Estimating range using the hands on an extended arm as a reference for the angular size in mrad.