Solar vs Sidereal Day :
solar day - time between transits of sun = 24 hrs = 1 day
sidereal day - time between transits of stars - 360° rotation
Earth orbits Sun +
 rotates
Earth - 360° in 365 days
        ~ 1° per day
\from noon to noon
   rotates ~ 361°
\solar day > sidereal by
  (1/360) x 24hr
~ 4 min/day
Stars rise 4 mins earlier
each day
last