06/27/2016 – Ephemeris – Astronomical twilight lasts till after midnight… Bummer!
Ephemeris for Monday, June 27th. Today the Sun will be up for 15 hours and 33 minutes, setting at 9:32, and it will rise tomorrow at 5:59. The Moon, at last quarter today, will rise at 1:57 tomorrow morning.
Here we are a week into summer and we find that the latest sunset was already last night. That means that the last vestiges of twilight* don’t end until just after midnight. It wouldn’t be so bad if the Sun was in the south at noon instead of 1:43 in the afternoon, due to being in the extreme western part of the eastern time zone and the imposition of daylight time. For latitudes north of 48 ½ degrees, twilight currently doesn’t end. That latitude will move northward as the Sun heads south. As it is now we in the Grand Traverse region are currently getting only 4 ½ hours of darkness Moon willing. And it won’t for the next few days at least. Our darkness situation will start to get better in about a month from now.
Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
*Astronomical twilight begins and ends when the Sun is 18° below the horizon.