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sleepsleep



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sleepsleep
http://en.wikipedia.org/wiki/Analemma

Quote:

In astronomy, an analemma (play /ˌænəˈlɛmə/; from Greek ἀνάλημμα "pedestal of a sundial") is a curve representing the changing angular offset of a celestial body (usually the Sun) from its mean position on the celestial sphere as viewed from another celestial body (usually the Earth). The term is used when the observed body appears, as seen from the viewing body, to move in a way that is repeated at regular intervals, such as once a year or once a day. The analemma is then a closed curve, which does not change.


why the sun moves like that?

image credit Jesús Peláez, copyright Jesús Peláez
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Post 06 Sep 2012, 16:18
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typedef



Joined: 25 Jul 2010
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typedef
Does the Sun move or is it the Earth that moves?
Post 06 Sep 2012, 18:36
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
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revolution
Earth's rotation is tilted and Earth's orbit is elliptical. Both of these things affect the position of the Sun in the sky throughout the year.
Post 06 Sep 2012, 23:16
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kalambong



Joined: 08 Nov 2008
Posts: 165
kalambong
typedef wrote:
Does the Sun move or is it the Earth that moves?



The Sun moves, in reference to the Milky Way, the Earth moves, in reference to the Sun, and the Milky Way moves, in reference to the Universe

Or, in other words, everything moves
Post 07 Sep 2012, 00:14
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