Commons:Deletion requests/Image:Earth-lighting-equinox PL.png

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

This deletion debate is now closed. Please do not make any edits to this archive.

Physical NONSENSE - Sun never illuminates Earth this way - Earth axis is ALWAYS TILTED with respect to Sun. Please correct this or remove this graphics!! 24.141.175.214 20:50, 21 September 2007 (UTC)[reply]

It is not true: the image (as said in it's english version Image:Earth-lighting-equinox EN.png shows what happens exactly twice every year "on the day of equinox (vernal and autumnal)". So the image is perfectly valid and should be kept. Vincenzo Gianferrari Pini 09:59, 22 September 2007 (UTC)[reply]

  • Keep The requester should look up the definition of "equinox" ;-) The Earth is almost always tilted with respect to the sun, but there are two days each year when the sun is directly over the equator and the illumination would look like this -- the vernal and autumnal equinox. The solstices are the two days of maximum tilt. This images shows exactly what its title implies... the Earth's tilt it essentially "sideways" to the sun on these two days, one on each side of its orbit. Carl Lindberg 01:08, 24 September 2007 (UTC)[reply]
  • Keep - as an author of the image I perfectly agree with previous "keep" votes - equinox is exactly what the image depicts... I know that it can be misleading if one doesn't think about all the relative positions of Sun and Earth throughout our solar year, but unfortunately (for the submitter), this situation does happen - the earth's tilt sure is the same with respect to the Sun - but as Earth's position changes, so does the angle between the tilt and the sun rays coming towards Earth. That's where seasons come from - Blueshade 10:30, 26 September 2007 (UTC)[reply]
  • Keep It also looks all right to me. The only surprising feature of the image is that it is represented as if the observer was situated far away on a direction that 1) belongs to the equatorial plane and 2) is orthogonal to the intersection of the ecliptic plane and the equatorial plane. Shows there is no shadow at noon on the equator on that day! Possibly this kind of image is clearer when observation point is situated on a less specific direction? Gil-Estel 12:45, 29 September 2007 (UTC)[reply]

Kept. Jastrow (Λέγετε) 10:32, 30 September 2007 (UTC)[reply]