OBAFGKMLTOld, Bald, Angry; Finally Great Kong May Look Tough (mnemonic for remembering the order of star temperatures)
OBAFGKMLTOh Be A Fine Girl, Kiss Me Like That (song by Diane Nalini)
References in periodicals archive ?
Entitled 'WISE J0304-2705', the object was a member of the recently established 'Y dwarf' class, the coolest stellar temperature class yet defined, added to the end of the sequence OBAFGKMLT.
Recent surprises: (a) L-type spectra (with strong features due to the alkali metals lithium, sodium, and so forth) switch over to T-type spectra (with features due mostly to methane) over a very narrow range of temperatures near 1,300 Kelvin, accounting for the absence of transitional types and representing the sharpest change between adjacent spectral types anywhere along the sequence OBAFGKMLT.
The final result is OBAFGKMLT, all from the same chemical composition.