spectral classification

spectral classification

[′spek·trəl ‚klas·ə·fə′kā·shən]
(astronomy)
A classification of stars by characteristics revealed by study of their spectra; the six classes B, A, F, G, K, and M include 99% of all known stars.
References in periodicals archive ?
As this binary has a spectral classification of G4V I suggest the dip in the light curve is due to chromospheric activity.
This approach, based on watershed, is composed of a spectral classification to obtain the markers and a vectorial gradient which gives the spatial information.
Soille (1996) combines spectral classification on histograms and spatial segmentation.
In fact, we consider that the hyperspectral images have enough information to define markers from a spectral classification.
The overall accuracy for this spectral classification trial was 100% for the training set and 98% in the test set, with only a single misclassification.
The Hipparcos database includes complete and detailed information on every star, including a spectral classification.
The following step is to examine more closely the spectral classification of the remaining stars.
With the remaining stars a close scrutiny is made of the spectral classification using the information found in the SIMBAD database.
Similarly, stars that are normal but whose spectral classification falls between two types are also separated (e.
The group's 17th session gets under way at Burbage Visitor Centre on Tuesday, September 5, with a presentation by David Conner, of Leicester Astronomical Society, on the spectral classification of stars.
The objective of the project was to determine minimum masses and individual spectral classifications for the two stars in HD100213.

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