#Skychart rotate 3d images archive#
No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. This message was posted before February 2018. When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I have just modified 2 external links on Celestial sphere. YohanN7 ( talk) 13:43, 14 June 2015 (UTC) Reply External links modified Student7 ( talk) 20:56, (UTC) Reply It has now been fixed. There is no general set of coordinates for other stars/planets. Tfr000 ( talk) 15:10, (UTC) Reply I now agree with the editors. YohanN7 ( talk) 14:45, (UTC) Reply Excellent idea. Nothing stops us from defining the generalized concept in a separate section. The term should, for historical reason's, probably be reserved for the Celestial sphere (referring to Earth), not just any celestial sphere (referring to any object). We could write it that way, but as it stands, it's now nonsense. It does not apply to a planet around some other star. The ecliptic, which is mentioned in the article, is the plane of Earth's orbit about the Sun. Someone (apparently Student7) re-wrote this article to be "less earth-centric". Who invented the celestial sphere? -The preceding unsigned comment was added by 124.181.125.145 ( talk) 08:39:22, Aug(UTC) Northern Pole Star Last, is the radius of the celestial sphere equal to the distance of earth to sun? Third, can we gaze the stars on the southern celestial sphere if we're on the northern sphere on earth? Second, do all stars complete its rotation in 23h56mins(even the giants,sun,etc)? First, does the sphere means the whole universe(it contains the constellations)?or are the constellations inside the galaxy? i am quite confused about the concept of celestial sphere. Put another way, successive meridian transits of a star occur on a 23h56m04s cycle (1 sidereal day), while successive meridian tranits of the sun take a little longer (1 solar day). So, the earth has to keep rotating for another 3m56s before it comes into the same orientation with respect to the sun. The earth takes 23h56m04s to return to the same orientation with respect to the fixed stars meanwhile, the sun has drifted eastward a bit more. The sun is moving eastward the earth is rotating west to east. Someone please let me know if I am not understanding.or if I am right, please edit and correct. This is substantiated by the rest of the numbers in the article.
If the earth rotates from west to east and the sun moves east over its ecliptic, then the sun should appear 4 minutes earlier at the same point. The statement that the sun rotates 1 degree to the east every day resulting in 4 "extra" minutes being required in the diurnal motion for the sun to reappear at the same meridian appears to be contradictory. Traveler100 ( talk) 17:30, 22 September 2009 (UTC) Reply Contradictory statement Craig Pemberton ( talk) 02:37, 22 September 2009 (UTC) Reply Check out Commons. I know there is already an image but it would be pretty easy to make it a lot nicer. A Wikipedian out there who is good with 3D modeling could make a very slick image for this page.
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