русский
cпектральный класс португальский
tipo espectral каталонский
tipus espectral испанский
tipo espectral 
1
Make one high open ended roll to determine the star's spectral class.
2
Throughout human history Tau Ceti was a nondescript fifth magnitude star of spectral class K0.
3
First, the star's color is determined by the spectral class, as shown on the chart.
4
A main-sequence star, luminosity one, spectral class G, right in the middle of the Hertzsprung-Russell diagram.
5
The columns each denote a spectral class, from temperature rating 0 to 9.
1
But the catalogue gave its magnitude, its co-ordinates, and its spectral type.
2
Morey set to work at once with the telescope; trying to find the nearest star of spectral type G-0, as had been agreed upon.
русский
португальский
каталонский
испанский