Day, night and Seasons

The reasons for day and night is the rotation of the Earth.
The reason for the Seasons seems to be almost exactly the same (tilting).
What's the difference?
AlHal2Asked:
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ozoConnect With a Mentor Commented:
One is a yearly cycle, the other is a yearly cycle.
One requires rotation of a single body, the other requires relative motion of two bodies.
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sdstuberCommented:
the seasons is due to the orientation of the earth, which changes the amount of sunlight and angle of that light on any particular point.
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d-glitchConnect With a Mentor Commented:
If the rotational axis of the Earth was normal to the plane of its revolution around the sun, there would be no seasons and the durations of day and night would be fixed and equal.  But it is tilted.

From June to September, the Norther Hemisphere is pointed toward the sun.  Longer days and warmer temperatures.
From December to March, the Southern Hemisphere takes the heat.
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ozoCommented:
would be fixed and equal
not counting the Ecentric Anomaly
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Naresh PatelTraderCommented:
Maximum Distance Between Sun To Earth In Summer - 15,20,99,000
Maximum Distance Between Sun To Earth In Winter    - 14,70,97,000

Seems Contradictory but it is fact - in Winter Earth comes closer to Sun than in Summer.

Reason ? There are 2
1 As Mr.sdstuber stated Cold & Hot season depends upon angle of sun rays i.e. Straight & Cross.Sun Light Angle In this dominant factor is our earth is little bit tilted.

2 In Summer & Winter season difference in distance to Sun is only 3.3% which dint much impact on Temperature.

Thank You & Apology if I am wrong in any statement or in my language.
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ozoCommented:
...
One effect is weaker at high |latitude|, the other effect is weaker at low |latitude|.
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ozoCommented:
Distance Between Sun To Earth In Northern Hemisphere Summer - 15,20,99,000 km
Northern Hemisphere Summer is also longer than Northern Hemisphere Winter.

The impact of a 3.3% difference can be more noticeable near the Equator, where it is less dominated by tilt effects.
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Naresh PatelTraderCommented:
May be Mam, 3.3% difference noticeable near the Equator. And it seems logical.
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loneieagle2Commented:
Earth is closest to the sun in the Summer in Australia and any other place in the Southern Hemisphere.
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Naresh PatelTraderCommented:
I read article of Johanis Kepler who believed Earth rotation to Sun is bit Oval Shape. And further on that article showed this figure ( Not Kepler figures ).

Thank You
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AlHal2Author Commented:
Thanks all.  I think this article explains it nicely.
http://www.crh.noaa.gov/lmk/?n=seasons
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