please empty your brain below

I lived in Singapore for some years and what always struck me was the rapidity with which the sun set and rose. It was all so quick. Very little in the way of dusk and dawn there.
I'm curious, and off-topic, but I notice that Europe (including the UK) has a much longer and more interesting twilight than southern Australia. The inky-blackness when you can still see, just, fascinates me. Am I imagining things or is this a 'thing?'
Antipodean: yes it is, and it's something I noticed myself when moving from London to Sweden. At the equinoxes, the angle at which the sun crosses the horizon at sunset is equal to the latitude of where you are. This means that in Australia, which is much closer to the equator than Europe, the sun sets more vertically. Thus it goes from just below to well below the horizon more quickly, and you have shorter twighlight. In the far north, you end up with very long nights but correspondingly very long twighlights. Compare Tromso and Canberra for instance.
The contrast is even greater at the solstices when, at high latitudes, the angle the sun travels across the sky is much closer to the horizontal, so spends much more time just below the horizon.

The UK lies almost entirely between 50 and 60 degrees from the equator, whereas even the southernmost part of the Australian mainland is less than 40 degrees from the equator.










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