Seasonal Fluctuations in Temperature on a Planet With Axial Tilt

No Continents and Oceans (Single Surface Type)  (e.g., Mars)



Number of Hours of Daylight


Summer Solstice





Winter Solstice


Radiation Intensity

Amt Rad Passing Through Top Making it To Surface







24 hours

0 hours           


30% (Low Sun Angle)


12 hours

12 hours           


60% (High Sun Angle)


Conclusions:           if the earth is considered to be a uniform ball all of one substance then:


(1)     On average, the earth's suface and the atmosphere are warmer at the Equator than at the Poles;


(2)     On average, there is a tremendous fluctuation from winter to summer temperatures in the polar regions and none at all in the equatorial regions.  No seasons at the equator.