...a solar year is the time it takes the earth to move around the sun: 365 days, 5 hours, 48 minutes, and 46 seconds?
(a solar year; is; the time it takes the earth to move around the sun: 365 days, 5 hours, 48 minutes, and 46 seconds)
a solar year
is
the time it takes the earth to move around the sun: 365 days, 5 hours, 48 minutes, and 46 seconds