The spectral data gathered is used to give the operator insight into the sources of radiation.

Moreover, distortion of the slit image at each wavelength can complicate the interpretation of the spectral data.

Combining light curves with spectral data often gives a clue as to the changes that occur in a variable star.

Mr. Johnson said his company was excited about this extra spectral data because it could help in investigating disputes about pollution and ground water.

Since astronomers do not have the spectral data on the asteroid, neither its chemical nor mineralogical composition is known.

No spectral data, of course, but at a rough guess I'd say somewhere around class B5 or AO.

Data is usually annotated in a way that correlates the spectral data with the related molecular structure.

He also sponsored Rruff, a project creating a complete set of high-quality spectral data from well-characterized minerals.

From what the team can discern, their spectral data challenge some theories of how stars form.

No spectral data are yet available to shed light on its composition.