Events for January 2018

The following table gives the date and time of important astronomical events for January 2018.

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 January 2018
------  -----  --------------------------------------------
        (h:m)
Jan 01  20     Mercury at Greatest Elongation: 22.7°W
Jan 01  21:54  Moon at Perigee: 356566 km
Jan 02  02:24  FULL MOON 
Jan 03  06     Earth at Perihelion: 0.98329 AU
Jan 03  19:50  Beehive 2.3°N of Moon
Jan 03  20     Quadrantid Meteor Shower
Jan 04  07:48  Moon at Ascending Node 
Jan 05  07:24  Regulus 0.9°S of Moon
Jan 08  22:25  LAST QUARTER MOON 
Jan 09  06     Venus at Superior Conjunction 
Jan 11  05:59  Jupiter 4.3°S of Moon
Jan 11  10:03  Mars 4.6°S of Moon
Jan 13  08     Mercury 0.7° of Saturn
Jan 15  02:10  Moon at Apogee: 406461 km
Jan 15  02:13  Saturn 2.6°S of Moon
Jan 15  07:24  Mercury 3.4°S of Moon
Jan 17  02:17  NEW MOON 
Jan 18  14:28  Moon at Descending Node 
Jan 23  17     Venus at Aphelion 
Jan 24  22:20  FIRST QUARTER MOON 
Jan 25  11     Mercury at Aphelion 
Jan 27  10:09  Aldebaran 0.7°S of Moon
Jan 30  09:54  Moon at Perigee: 358995 km
Jan 31  07:19  Beehive 2.3°N of Moon
Jan 31  13:27  FULL MOON 
Jan 31  13:30  Total Lunar Eclipse; mag=1.315
Jan 31  18:46  Moon at Ascending Node 

As the events above transpire, I will 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 2018 2019 2020 2021 2022 2023
Atlantic Standard Time 2018 2019 2020 2021 2022 2023
Eastern Standard Time 2018 2019 2020 2021 2022 2023
Central Standard Time 2018 2019 2020 2021 2022 2023
Mountain Standard Time 2018 2019 2020 2021 2022 2023
Pacific Standard Time 2018 2019 2020 2021 2022 2023
Alaska Standard Time 2018 2019 2020 2021 2022 2023
Hawaii Standard Time 2018 2019 2020 2021 2022 2023

For additional years, see Calendars of Astronomical Events.

For information on all solar and lunar eclipses this year, see: Eclipses During 2018.

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