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 ?
Other topics include mask design, reverberation mapping, radio surveys, red supergiants in the Magellanic clouds, and automatic spectral classification of galaxies in the infrared.
Spectral angel mapper (SAM) is a spectral classification which applied an n-D angle to match pixels to reference spectra (Van der Meer et al.
In 1891 she left Harvard College Observatory for several years to accept a series of teaching jobs, returning sporadically to finish her work on spectral classification.
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.
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 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 most luminous members we see are hot, bluish white stars with an O or B spectral classification.
The star colors correspond to spectral classification.
Many interesting targets can be culled from the spectral classification published in Sky Catalogue 2000.

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