Subject |
has reference |
has latitude |
is an instance of |
has focal ratio |
has location |
has altitude |
has mounting manufacturer |
has owner |
has mirror maker |
has acronym |
has temperature |
has primary mirror shape |
has mirror diameter |
has mirror type |
has aperture |
is a kind of |
has comment |
has creation date |
has mount |
has longitude |
has secondary mirror shape |
has definition |
altazimuth telescope | | in degrees, minutes, seconds (N or S) | | | | height above sea level in meters | the person, company or institution that constructed the mounting | | | | ambient | | | | | Earth based telescope | | | altazimuth | in degrees, minutes, seconds (E or W) | | A form of mounting similar to that of a radar which allows the telescope tube to be moved horizontally (by rotation in azimuth or compass direction) and vertically (by rotation in altitude or elevation). To follow a star the telescope must be adjusted simultaneously in both axes. (also called alt-az) |
optical telescope | astroweb | | | | | | | | | | | | | | | electromagnetic telescope | | | | | | |
Ritchey-Chrétien | | | | | | | | | the person, company or institution that created the mirror | | | concave hyperboloid | equal to aperture (except for Schmidt which has aperture smaller than mirror diameter) | material and other engineering details | or primary mirror diameter | reflector | | | | | convex hyperboloid | A system of two mirrors, aspherized to give an image at the secondary (Cassegrain) focus free from spherical aberration and coma. |
New Technology Telescope | astroweb | 29° 16' S | altazimuth telescope | U2.2, 11 | La Silla, Chile | 2353 m | the person, company or institution that constructed the mounting | European Southern Observatory | Zeiss | NTT | ambient | concave hyperboloid | equal to aperture (except for Schmidt which has aperture smaller than mirror diameter) | thin Zerodur | 3.50 m | | mirror figure controlled by 78 active supports | 1989 | altazimuth | 70° 44' W | convex hyperboloid | |