300-foot telescope

300-foot’s Balancing Act

The 300-foot telescope in Green Bank, West Virginia was a transit telescope, meaning that it could only lift and dip, not spin around on its base. In this photo, the 300-foot impressively poses at an angle, showing off how well balanced it was on its semi-circle gear. Its first control building is under construction beneath it.

300-foot telescope

How Low Can You Go?

The 300-foot telescope in Green Bank, West Virginia dips for the cameras after its steel structure is complete. The 300-foot was a transit telescope, meaning that it could only lift and tip, not spin around on its base.

300-foot telescope
300-foot telescope

300-foot Masterpiece

The 300-foot telescope in Green Bank, West Virginia after its completion in September 1962.

Aerial shot of 300-foot telescope

Early Aerial Over Green Bank

This aerial photograph was taken three years after the 300-foot telescope was completed in Green Bank, West Virginia. The trackway for the Green Bank Interferometer (GBI) can be seen, and off to the left would have been the second 85-foot Blaw Knox telescope, the 85-2, that formed our first interferometer.

300-foot telescope

Paving the Way for Serious Research

When the 300-foot Telescope was completed in 1962, it quickly became a busy instrument used by astronomers from around the world. It was the world’s largest single-dish telescope, and certainly an impressive view for staff and residents of Green Bank, West Virginia.