3 ms·
That observation in itself is not a disproof. (Imagine standing in a room with a bunch of CDs suspended horizontally from the ceiling. From any vantage point
by colanderman 9y ago
That observation in itself is not a disproof.
(Imagine standing in a room with a bunch of CDs suspended horizontally from the ceiling. From any vantage point you can see some CDs edge-on, some from the top, some from the bottom, etc. But they're all oriented in the same direction.)
- deleted 9y ago[deleted]
- sosuke 9y agoThat boggles my mind, do you have any sources I can read to start digging into on this? Not sure why a question like this would be voted down but my own searches have only turned up articles about galaxies spinning in the same direction. Someone else commented with some clarification. https://news.ycombinator.com/item?id=16586901 https://news.ycombinator.com/item?id=16586901
- semi-extrinsic 9y agoThis situation is trivially detectable though. Simply plot the inclination angle of disc galaxies as a function of azimuth and inclination, if it's like you say, there will be a very clear banded structure.
- tossandturn 9y agoThat analogy does not hold up when the CD you are observing from is in the same plane as all the others.
- jl6 9y agoI suspect that in your example you would observe a number of different apparent orientations, but that there would be some types of apparent orientation that could never occur.