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Primary mirror
CHF 43.20
Auf Lager
SKU
GI51K5H0JDR
1 Verfügbar 
Geliefert zwischen Mi., 26.11.2025 und Do., 27.11.2025
Details
High Quality Content by WIKIPEDIA articles! A primary mirror (or primary) is the principal light-gathering surface (the objective) of a reflecting telescope.The primary mirror of a reflecting telescope is a spherical or parabolic shaped disks of polished reflective metal (speculum metal up to the mid 19th century), or in later telescopes, glass or other material coated with a reflective layer. One of the first known reflecting telescopes, Newton's reflector of 1668, used a 3.3 cm polished metal primary mirror. The next major change was to use silver on glass rather than metal, in the 19th century such was with the Crossley reflector. This was changed to vacuum deposited aluminum on glass, used on the 200-inch Hale telescope. Solid primary mirrors have to sustain their own weight and not deform under gravity, which limits the maximum size for a single piece primary mirror.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130461294
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Genre Physik & Astronomie
- EAN 9786130461294
- Format Fachbuch
- Titel Primary mirror
- Herausgeber Betascript Publishing
- Anzahl Seiten 96
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