But the other reason is that, paradoxically, the star's extreme heat itself makes the star almost invisible. As we saw above, Planck's law of black body radiation dictates that an object's temperature determines its color. Sirius, with its surface at a temperature of 18,000 degrees F, is so hot that it glows blue.
â¢ REFLEXIVE PRONOUN (noun). The noun REFLEXIVE PRONOUN has 1 sense: 1. a personal pronoun compounded with-self to show the agent's action affects the agent. Familiarity information: REFLEXIVE PRONOUN used as a noun is very rare.
Learner's definition of REFLEXIVE. 1. grammar : showing that the action in a sentence or clause happens to the person or thing that does the action. In âI hurt myself,â the verb âhurtâ is reflexive. In the sentence âWe forced ourselves to finish the assignment,â the word âourselvesâ is a reflexive pronoun.