SUPERMOON and the reality WITH PHYSICS

SuperMoon rational and physical observations against any psychological/emotional involvement ...

Only 14% larger than the normal Moon. It means that if you watch the moon with a Ruler, and the Moon it's 1cm large (which si not so far away, you can try it, at a certain distance from the eye, make the Moon cover 1cm of the ruler)), all what you see is that it's 1.4mm bigger than the normal 0.7mm per side! ... no human eye can perceive it ... not even compare it in case 2 Moons, one normal and one super, are closed together. It can, but after a long observation!

A Supermoon is also 30% brighter than the normal one ...

what does it mean? Is it really so noticeable?

Let see it together:

If it is 100% brighter (the double), in that case, it is 3dB brighter.

but the 30% it's just 0.3 times more brighter than the normal.

Thus if we assign to the normal, a brightness value of "1", the superMoon will be "1.3". 1+30% = 1.3 ... it means not 3dB but just 1.1 dB!!!

Which is humanly inappreciable/imperceptible. As far as we do't switch rapidly from the normal moon to the SuperMoon ... then a little bit is noticeable. but only on that way.

It is like to distinguish a lamp of 50cd against one of 65cd ... we can barely notice it and only if both lamps are closed to each other. Only on that case, we can see some small difference .. otherwise not at all.

So why you saw the Moon so brilliant? So big?

Just because each time the Moon is full and the sky clear: it's brilliant and big.

Moreover no one can remember nor compare two full moon times, 30 days far away from each other, when the size and the brightness of 2 Moons at the same time present on sky, are almost not distinguishable from human eye.

Thus: suggestiveness due the newspapers and media, played a big role to make you see what in the reality you don't perceive :)

A lesson to be more rational all the next time from now on ;)