So, if the sun is that close, than you should be able to see it get noticeably larger as you ascend into the atmosphere, say on a plane. Is there any evidence of the sun being larger if you go on a high altitude / commercial plane? Also where does this low orbit, smaller sun get its energy from? What is it made from? If it is made from the same particles / works the same (i.e nuclear fusion) as the standard sun model, then it would need to be hundreds of times larger, as estimates for the minimal star size range from around 8.7% the diameter of our sun (from space.com). Even if this mini-star was small enough to fit into your planar model, which it is not [i]my calculations put it at 121,051.8km across, as the sun's diameter is 1.3914 million km 8.7% of 1.3914 million km is 121,051.8 km (it would be appreciated if someone could recheck those calculations thanks)[/i] If it were that size, its density would have to extremely high to cause cause enough pressure to trigger nuclear fusion. Its mass would cause insanely poweful gravitational tidal forces, easily enough to destroy earth completely. TL;DR : Your 'sun' (if it obeys the laws of gravity and nuclear fusion) is an impossibility, proven by us [b]still being alive[/b]. So the question is; does the planar version of our sun behave in the same way our current models of our sun work? (I.e. fusion, pressure, gravity etc) Cheers for reading, [spoiler]also sos for not having the exact url for the space.com article, I lost it. However you can easily find it yourself if you search 'minimum size of a star' [/spoiler]