Home › Forums › Atmospheric Phenomena › Does it get darker after the end of Astronomical twilight? › Biggest effects are articficial
In Berkshire I would have thought the overwhelming effect would be the switching off of lights. I notice this in London: it is much darker after midnight, though none of the surrounding local authorities switch their street lights off.
Yes in theory the airglow, caused by ionised molecules, would have a decay through the night, but, as others have said, it’s not going to contribute much for us.