Events for December 2016

The following table gives the date and time of important astronomical events for December 2016. The time of each event is given in Greenwich Mean Time or GMT (a.k.a. Universal Time or UT). To convert GMT to Eastern Standard Time (EST) just subtract 5 hours. To convert GMT to other time zones, visit Time Zones. Some of the astronomical terms used in the calendar are explained in Definitions.

 Date    GMT   Astronomical Events for December 2016
------  -----  --------------------------------------------
        (h:m)
Dec 03  12:34  Venus 5.8°S of Moon
Dec 05  10:39  Mars 2.9°S of Moon
Dec 06  17:35  Moon at Descending Node 
Dec 07  09:03  FIRST QUARTER MOON 
Dec 10  11     Saturn in Conjunction with Sun 
Dec 11  04     Mercury at Greatest Elongation: 20.8°E
Dec 12  23:27  Moon at Perigee: 358463 km
Dec 13  04:14  Aldebaran 0.5°S of Moon
Dec 14  00     Geminid Meteor Shower
Dec 14  00:06  FULL MOON 
Dec 17  03:17  Beehive 4.1°N of Moon
Dec 18  18:13  Regulus 1.0°N of Moon
Dec 19  04:46  Moon at Ascending Node 
Dec 21  01:56  LAST QUARTER MOON 
Dec 21  10:45  Winter Solstice 
Dec 22  08     Ursid Meteor Shower
Dec 22  16:37  Jupiter 2.4°S of Moon
Dec 25  05:55  Moon at Apogee: 405870 km
Dec 25  15     Mercury at Perihelion 
Dec 28  19     Mercury at Inferior Conjunction 
Dec 29  06:53  NEW MOON 

As the events above transpire, I will occassionally post photographs of some of them at Recent Images.

Astronomical events calendars for complete years and for eight time zones are available through the links below.

Time Zones Calendars of Astronomical Events
Greenwich Mean Time 2016 2017 2018 2019 2020 2021
Atlantic Standard Time 2016 2017 2018 2019 2020 2021
Eastern Standard Time 2016 2017 2018 2019 2020 2021
Central Standard Time 2016 2017 2018 2019 2020 2021
Mountain Standard Time 2016 2017 2018 2019 2020 2021
Pacific Standard Time 2016 2017 2018 2019 2020 2021
Alaska Standard Time 2016 2017 2018 2019 2020 2021
Hawaii Standard Time 2016 2017 2018 2019 2020 2021

For additional years, see Calendars of Astronomical Events.

For detailed information on solar and lunar eclipses this year, see: Eclipses During 2016.

For detailed information on the transit of Mercury this year, see: 2016 Transit of Mercury.

The Calendars of Astronomical Events were all generated by a computer program I wrote (with THINK Pascal running on a Macintosh G4) using Astronomical Algorithms (Jean Meeus).

Fred Espenak