Physics — Spectral Sequence (OBAFGKM)
One representative star per spectral class.
Make it your own.
title "Spectral sequence O B A F G K M"
type hr
star "O: Mintaka" temp 29500 lum 90000 class O
star "B: Regulus" temp 12460 lum 288 class B
star "A: Vega" temp 9602 lum 40 class A
star "F: Procyon" temp 6530 lum 6.9 class F
star "G: Sun" temp 5778 lum 1 class G
star "K: Aldebaran" temp 3910 lum 518 class K
star "M: Betelgeuse" temp 3500 lum 90000 class M