Astronomical Twilight

[MarkS]

This weekend at DSC, astronomical night-time will be approx 2 hours long.
By next weekend astronomical night will have disappeared entirely - it won't get any darker than astronical twilight until 20 July

It's astonishing that astronomical night shortens by 2 hours in the space of one week!

Generate your own chart here:
http://aa.usno.navy.mil/data/docs/RS_OneYear.php

[Rick]

We're too close to the Arctic Circle.

[RobertM]

Brrrrr! been feeling like it this week too

[PhilB]

This is one of the things that amused me about the new dark sky reserve in Scotland - when you are most likely to be able to get there it's probable that, from an astronomical point of view, it simply won't be getting dark