| The most important advantages of this form of spectroheliograph is the large field photographed. |
| With his colleagues at Stanford University in the 1950s, Dr. Bracewell designed a specialized radio telescope, called a spectroheliograph, to receive and evaluate microwaves emitted by the Sun. |
| Basically, the spectroheliograph has two spectrographs mounted back-to-back. |
| He moved to the spectroheliograph, where the zed-ray connections were still humming. |
| In the subterranean chamber is the spectroheliograph of exceptional size and power. |
| He invented the spectroheliograph in 1892, a device that allowed him to view the sun in individual wavelengths of light. |
