spectral class in a sentence

Examples

1. The spectral class of the primary is A5.
2. However, the reason for the existence of such chemically peculiar, spectral class A0-F0 stars remains unclear.
3. The companion, HD 234121, is a magnitude + 8.27 main sequence star belonging to spectral class K0.
4. The MK spectral class is M0-M1.5 Iab.
5. The He I lines are weaker than the He II lines, leading to a WN6ha spectral class.
6. It has been assigned the latest known spectral class ( > Y2, initially estimated as > Y0 ).
7. It is a dwarf ( luminosity class V ) red ( spectral class M1 ) variable by rotation.
8. In 1968, the WR spectral classes were revised and HD 165763 was used as an example of class WC5.
9. It has spectral class e " Y1 and is located in constellation 31st-nearest star system to the Solar System.
10. Its spectral class is C6.3e.