Meanwhile, in the Southern Hemisphere, there's the Southern Cross, a bright four-star arrangement. And in northern Australia, just north of that latitude, the Big Dipper just barely squeaks above the horizon. Below 25 degrees South, you can't see it at all. The Big Dipper, a set of seven stars that looks like a ladle, is always visible at latitudes of 41 degrees North or higher. If we call a friend in Australia and ask them what constellations they can see at night, they won’t be the same as what we see. Because the Earth is a shape other than a flat disk, when looking into the night sky the Earth itself can block our view. If the earth was flat, everyone should be able to see the same constellations all the time, as if we all were staring up from the same section of summer grass. (see amazing video below)Ģ) YOU DON’T ALWAYS SEE THE SAME CONSTELLATIONS. The ships will dip below the curve of the Earth. Bring a telescope or binoculars on your trip to the harbor.
You can’t because the curve of the Earth makes the ship dip below the horizon. If the Earth was flat, and you had the right optics, you could watch a ship sail from New York to Africa without losing sight of it.
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