Question

Stars appear to rise in the east and set in the west because the Earth rotates from west to east.

Taking one lunar month as 29.5 days, how many days are there in 4 lunar months?

Among the stars, the Moon moves eastward by about 13.2° per day, while the Sun appears to move eastward by about 1° per day. Using these values, estimate the number of days from one new moon to the next (to one decimal place).