The term spectral type in astronomy referred to the stellar magnitude of a star based on its temperature and color. Among the spectral types were the O-type star, B-type star, F-type star and G-type star.
Background information Edit
The traditional scientific classification scheme, called the Harvard system, from hottest to coolest stars is:
- O-type star (blue in color) – FGC 1215 B&C, Mintaka A
- B-type star (blue white to deep blue white) – Vandor, Rigel
- A-type star (white to blue white) – FGC 1215 A, Vega, Sirius
- F-type star (yellow white to white) – Orellius Minor, Canopus
- G-type star (yellow to yellowish white) – Calindra, Hemikek, Sol
- K-type star (orange) – Alpha Centauri B, Aldebaran
- M-type star (orange red) – Proxima Centauri, Betelgeuse
The onscreen classification of Vandor as B-type is inconsistent with its visual appearance.
It is unknown to which of those spectral types a "Gamma 9" could belong to; it is possibly a subtype of the G-type star, like a G1 star.