Physics — H-R Diagram: Subdwarfs
Metal-poor halo stars just below the main sequence.
Make it your own.
title "Subdwarfs on the H-R diagram"
type hr
star "Kapteyn's Star" temp 3550 lum 0.012 class M
star "HD 19445" temp 6000 lum 0.5 class G
star "Groombridge 1830" temp 5000 lum 0.2 class G
star "Sun (reference)" temp 5778 lum 1 class G
star "SDSS subdwarf" temp 5500 lum 0.3 class K