Subject |
has reference |
has location |
has owner |
has latitude |
has secondary mirror shape |
has mirror maker |
is a kind of |
has optical design |
has temperature |
has operator |
has mirror type |
has altitude |
is an instance of |
has synonym |
has focal ratio |
has aperture |
has mount |
has mounting manufacturer |
has definition |
has longitude |
has mirror diameter |
has primary mirror shape |
has creation date |
Cassegrain | | | | | convex hyperboloid | the person, company or institution that created the mirror | reflector | Cassegrain | | | material and other engineering details | | | | | or primary mirror diameter | | | Telescope devised by Cassegrain in which an auxiliary convex mirror reflects the magnified image, upside down, through a hole in the center of the main objective mirror - i.e., through the end of the telescope itself. It was, however, no improvement on the gregorian telescope invented probably slightly earlier. | | equal to aperture (except for Schmidt which has aperture smaller than mirror diameter) | concave paraboloid | |
Horseshoe equatorial telescope | | | | in degrees, minutes, seconds (N or S) | | | equatorial telescope | | ambient | | | height above sea level in meters | | | | | Horseshoe equatorial | the person, company or institution that constructed the mounting | | in degrees, minutes, seconds (E or W) | | | |
optical telescope | astroweb | | | | | | electromagnetic telescope | | | | | | | | | | | | | | | | |
George Ellery Hale Telescope | astroweb | Palomar Mountain, Calif., US | Palomar Observatory | 33° 21' N | convex hyperboloid | J.A. Anderson | | | ambient | California Institute of Technology | ribbed Corning Pyrex | 1706 m | Horseshoe equatorial telescope | 200 inch | f/3.3. 16, 30 | 5.08 m | Horseshoe yoke mount | Westinghouse | | 116° 52' W | equal to aperture (except for Schmidt which has aperture smaller than mirror diameter) | concave paraboloid | 1948 |