Events for April 2016

The following table gives the date and time of important astronomical events for April 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 April 2016
------  -----  --------------------------------------------
        (h:m)
Apr 05  17     Mercury at Perihelion 
Apr 05  17:27  Moon at Descending Node 
Apr 06  08:30  Venus 0.7°S of Moon: Occultation
Apr 07  11:24  NEW MOON 
Apr 07  17:36  Moon at Perigee: 357164 km
Apr 08  10:35  Mercury 5.2°N of Moon
Apr 09  21     Uranus in Conjunction with Sun 
Apr 10  22:05  Aldebaran 0.4°S of Moon
Apr 14  03:59  FIRST QUARTER MOON 
Apr 17  00:46  Regulus 2.5°N of Moon
Apr 18  04:42  Jupiter 2.2°N of Moon
Apr 18  14     Mercury at Greatest Elongation: 19.9°E
Apr 18  18:04  Moon at Ascending Node 
Apr 21  07:59  Spica 5.1°S of Moon
Apr 21  16:05  Moon at Apogee: 406352 km
Apr 22  05:24  FULL MOON 
Apr 22  05     Lyrid Meteor Shower
Apr 25  04:13  Mars 4.9°S of Moon
Apr 25  19:28  Saturn 3.3°S of Moon
Apr 27  13:51  Mars 4.8°N of Antares
Apr 28  08:14  Mercury 3.0°S of Pleiades
Apr 30  03:29  LAST QUARTER 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