You have indicated that the following question is not suitable for display on justcurio.us:

Was wondering, how would an astronomer know if the color of a star's illumination is caused by the temperature of a star (hot ones glow blue and cooler ones glow red) or caused by red or blue shifting due to Doppler Effect

Please tell us why this is inappropriate:

racially offensive

sexually offensive
advertisement / spam
not a question
other