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On 12/28/2020 2:15 PM, R Kym Horsell wrote:
Justin Tyme wrote: On 12/28/2020 12:19 AM, Daniel65 wrote: Justin Tyme wrote on 28/12/2020 2:01 am: By cartwheel, I mean appear to rotate clockwise or counterclockwise throughout the course of the night? Or, is is supposed to appear stationary from a fixed point on earth? A fair question is "Why don't you go outside and look?" My answer is that I have and while the first few times the moon seemed to stay in place, the last few times I have looked it had, indeed, appeared to have rotated 45 degrees or so clockwise over the course of several hours. I would think that the Moon's Axis always points in the same Galactic direction as the Earth's Axis. Sort of!! Give or take!! So, at Moonrise, the Moon's Axis would, effectively, be lieing on the Earth's Eastern Horizon with the Moon's North Pole pointing towards the North. At Moon noon, the Moon's Axis would be directly overhead, with the Moon's North Pole pointing towards the North. At Moonset, the Moon's Axis would, effectively, be lieing on the Earth's Western Horizon with the Moon's North Pole pointing towards the North. So, let's say I'm in the midwestern US. And at the beginning of the night the "face" of the moon is in one place: pretty much upright, a little left of center, "eyes" toward the top. At 3am it's like the moon is a dial, the eyes are way on the right side as I view it. I'm just trying to get a handle on this. In the past I have not been very observant, but I always thought the "face" was in the same place. ... The horizon is not "horizontal" and verticals from the horizon are not "vertical". If you judge whether some planet or constellation is "spinning" by comparing it with the horizon to the East...to the North....to the West you are misled. E.g. Orion rises in the east and seems to be laying on one side. During the night it travels to the north and seems to be more or less upright. When it sets in the west it seems to lay on the oppsites side. Yet the universe is not spinning 15 deg per hour. Unfortunately this topic is a long-time favorite of concern trolls. When I started reading USENET in the 80s it was a thing. I'm sure some of the people that made it popular back then have web pages or youtubes dedicated to them by now. ![]() So, is this fellow misleading us? https://www.youtube.com/watch?v=zA9J3IFsO_w |
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