Question: it is the east and juliet is the sun line number?
Answer: Romeo speaks these lines in the so-called balcony scene, when, hiding in the Capulet orchard after the feast, he sees Juliet leaning out of a high window (2.1. 44–64). Though it is late at night, Juliet's surpassing beauty makes Romeo imagine that she is the sun, transforming the darkness into daylight.