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Our Astronomical Legacy
group70 is building the world's largest privately funded research grade telescope, detailing its specifications, history, and usage. Our goal is to serve astronomers, schools, and the public.
Our Telescope.....
Explore the universe as it can only be seen with a large telescope! When completed the telescope will be remotely controlled for worldwide use. Powered by a mirror completed in 2003 from one of the 72-inch blanks originally cast by Corning for the 48-inch Schmidt telescope at Palomar.

Innovative Design
Our telescope is engineered for precision and stability, ensuring optimal viewing experiences .
In 2003 a dedicated group of professional engineers finshed the 72 inch mirror after 10 years of weekend labor!
![20251120_101523[1]_edited.jpg](https://static.wixstatic.com/media/fb4f51_81b65146f1384064a4d094298549e00b~mv2.jpg/v1/crop/x_0,y_36,w_671,h_718/fill/w_454,h_482,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/20251120_101523%5B1%5D_edited.jpg)
In 2019 construction started on the telescope!



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