MM8III

Best southern standard for M8III is R Dor (J0436-6204)

MK43 standard:	     RT Vir - M8III [on plates]
		     Y UMa - M8III [on plates]
Turnshek85 standard: T Oph - M8III  
Keenan89 standard:   R Dor (=HD 29712) - M8eIII: 

# No standard

JohnsonMorgan53, Keenan63, MorganKeenan73, and GrayCorbally10 do not
list a M8III standard.  Keenan63 lists RX Boo as "M8:(weak emission)"
but no luminosity class (presumably a giant)

# Standards

RT Vir 
   M8III: MK43

Y UMa
   M8III: MK43

R Dor = HD 29712 (J0436-6204) 
   M8eIII:: Keenan89

T Oph 
   M8III: Turnshek85(stan)