Events for September 2016

The following table gives the date and time of important astronomical events for September 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 September 2016
------  -----  --------------------------------------------
        (h:m)
Sep 01  09:03  NEW MOON 
Sep 01  09:07  Annular Solar Eclipse; mag=0.974
Sep 01  15:27  Moon at Ascending Node 
Sep 02  15     Neptune at Opposition 
Sep 03  10:33  Venus 1.1°S of Moon: Occultation
Sep 04  19:56  Spica 5.8°S of Moon
Sep 04  20:05  Saturn 5.9°N of Antares
Sep 06  18:44  Moon at Apogee: 405059 km
Sep 08  21:23  Saturn 3.8°S of Moon
Sep 09  11:49  FIRST QUARTER MOON 
Sep 13  00     Mercury at Inferior Conjunction 
Sep 15  23:55  Moon at Descending Node 
Sep 16  18:54  Penumbral Lunar Eclipse; mag=0.908
Sep 16  19:05  FULL MOON 
Sep 18  15:15  Venus 2.2°N of Spica
Sep 18  17:00  Moon at Perigee: 361894 km
Sep 21  22:13  Aldebaran 0.2°S of Moon
Sep 22  14:21  Autumnal Equinox 
Sep 23  09:56  LAST QUARTER MOON 
Sep 26  06     Jupiter in Conjunction with Sun 
Sep 27  22:32  Regulus 1.7°N of Moon
Sep 28  15     Mercury at Perihelion 
Sep 28  19     Mercury at Greatest Elongation: 17.9°W
Sep 28  22:06  Moon at Ascending Node 
Sep 29  10:42  Mercury 0.7°N of Moon: Occultation

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