Re: Fair orbital question

"Spaceman" <spaceman@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
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"Greg Neill" <gneillREM@xxxxxxxxxxxxxxx> wrote in message
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That's silly. Think about it. If the seasonal
change is uniform, then you'll be swapping same
for same, with no resulting difference.

No swapping is necesary for seasonal change Greg,
even with no tilt, Earth would still have seasons,
but without the eliptical orbit, Earth would not.

Well, that's true enough. But they would be just
about opposite to what we have now (hottest during
our winter and coolest during our summer), and the
size of the variation would be miniscule, maybe a
couple of degrees average variation over the year
for a given location.


the tilt does "enhance it", but it is not the cause".
the orbit is the cause, the tilt is the enhancement.

Nope. The major component of the seasons is caused
by the tilt. Do the energy balance calculation, James.


Incorrect. The length of daylight hours and angle
of incidence of the sun's rays at any given place
on the plaent is an effect of the tilt.

nope,
that is the effect for the seasonal swap.
not the seasons themselves.
again, you need to remove the dang tilt and think
instead of just a "read only memory" use.


I've done both, James. That's what comes of reading to
understand rather than to entertain.

LOL
You have not checked it out enough without reading Greg.
LOL

Without the eliptical orbit the seasons would be gone
even with the tilt left.

Well, you're definitely wrong on this point, as the
calculations would show you. That you are of a fixed
mindset regarding it only highlights your characteristic
denial of inconvenient (to you) facts.

Hey James, why do suppose it is that people using
photovoltaic cells to produce elecricity take care
to aim their solar panels so that they are
perpendicular to the Sun's rays?
.

Relevant Pages

  • Re: Theres still time to celebrate the TRUE meaning of this season
    ... PHYSICAL PROPERTIES OF EARTH AND SOLAR SYSTEM NECESSARY TO SUPPORT LIFE ... Tilt of earth's axis gives us our moderate seasons. ...
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  • Re: Those of us trying to help Kelleher
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    (sci.astro.amateur)
  • Re: First time view of a planet
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  • Re: Alternative to the analemma hoax
    ... When the middle of the Sun (the Eye being ... seasonal variations. ... by exaggerating the angle of the sun and using a spherical Earth. ... there is a tilt of the analemma. ...
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  • Re: Fair orbital question
    ... That would be our summer if there was no tilt. ... The sun is clearly the most important factor in the seasons. ... Next most important is the rotation of the earth because half the earth is ... The orbit alone is a cause but of course would not ...
    (sci.physics)