At this week’s national gathering, astronomy and astrophysics professors Bryan Gaensler, Enrico Ramirez-Ruiz, and Connie ...

A brand new spectrograph on the Gemini North telescope has seen first light, detecting elements in a dying star known as the Jewel Bug Nebula. When you purchase through links on our site, we may earn ...

The main function of a telescope spectrograph is to separate light into its component colours (or wavelengths) to reveal information about the chemical content, temperature and motion of distant ...

Researchers have developed a new technology that can shape the spectrum of light emitted from a laser frequency comb across the visible and near-infrared wavelengths with more precision than ...

Laser frequency combs calibrate an astronomical spectrograph to new levels of precision. “This precision is already beyond the state-of-the-art and its only the first time this technology has been ...

A team of scientists and engineers led by Princeton researchers recently reported the successful operation of a new instrument for the Subaru Telescope in Hawaii that will allow astronomers to make ...

SOLAR SPECTROGRAPH FOR THE POULKOVO OBSERVATORY.—Engineering for July 18 contains a detailed description and several photographs of the 7-metre solar spectrograph by Grubb, which has just been erected ...

THE SPECTRUM OF BROOKS'S COMET, 1911c.—With the three-prism slit spectrograph (No. iii.) and a small objective-prism spectrograph of 10 cm. focal length, both attached to the Pulkowa 30-inch refractor ...