2018 Calendar of Astronomical Events
2018 Phases of the Moon
Greenwich Mean Time
The following table gives the date and time of the Moon's phases for the year. If Daylight Saving Time is in effect, add one hour to the times listed.
| 2018 Phases of the Moon | |||
| Greenwich Mean Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | Jan 2 02:24 | Jan 8 22:25 |
| Jan 17 02:17 | Jan 24 22:20 | Jan 31 13:27 t | Feb 7 15:54 |
| Feb 15 21:05 P | Feb 23 08:09 | Mar 2 00:51 | Mar 9 11:20 |
| Mar 17 13:12 | Mar 24 15:35 | Mar 31 12:37 | Apr 8 07:18 |
| Apr 16 01:57 | Apr 22 21:46 | Apr 30 00:58 | May 8 02:09 |
| May 15 11:48 | May 22 03:49 | May 29 14:20 | Jun 6 18:32 |
| Jun 13 19:43 | Jun 20 10:51 | Jun 28 04:53 | Jul 6 07:51 |
| Jul 13 02:48 P | Jul 19 19:52 | Jul 27 20:20 t | Aug 4 18:18 |
| Aug 11 09:58 P | Aug 18 07:49 | Aug 26 11:56 | Sep 3 02:37 |
| Sep 9 18:01 | Sep 16 23:15 | Sep 25 02:53 | Oct 2 09:45 |
| Oct 9 03:47 | Oct 16 18:02 | Oct 24 16:45 | Oct 31 16:40 |
| Nov 7 16:02 | Nov 15 14:54 | Nov 23 05:39 | Nov 30 00:19 |
| Dec 7 07:20 | Dec 15 11:49 | Dec 22 17:49 | Dec 29 09:34 |
An eclipse of the Sun can only occur at New Moon (see: Solar Eclipses for Beginners), while an eclipse of the Moon can only occur at Full Moon (see: Lunar Eclipses for Beginners). In any calendar year there are a minimum of two solar and two lunar eclipses.
If an eclipse of the Sun or Moon takes place on a given date, it is noted by a character next to the date in the table above. Solar eclipses are indicated as: T=Total, A=Annular, H=Hybrid and P=Partial. Lunar eclipses are indicated as: t=Total, p=Partial, and n=Penumbral.
Phases of the Moon Photo Gallery is an image collection showing the Moon's phases over a complete synodic month.
2018 Calendar of Astronomical Events
Greenwich Mean Time
The following table gives the date and time of the important astronomical events for the year. If Daylight Saving Time is in effect, add one hour to the times listed. A key to astronomical terms appears below the calendar.
| 2018 Calendar of Astronomical Events | ||||||||
| January - June | July - December | |||||||
Date GMT Event
(h:m)
Jan 01 20 Mercury at Greatest Elong: 22.7°W
01 21:54 Moon at Perigee: 356566 km
02 02:24 FULL MOON
03 02:59 Earth at Perihelion: 0.98329
04 07:48 Moon at Ascending Node
08 22:25 LAST QUARTER
09 06 Venus at Superior Conjunction
11 05:59 Jupiter 4.3°S of Moon
13 08 Mercury-Saturn: 0.7°
15 02:10 Moon at Apogee: 406461 km
15 02:13 Saturn 2.6°S of Moon
17 02:17 NEW MOON
18 14:28 Moon at Descending Node
23 17 Venus at Aphelion
24 22:20 FIRST QUARTER
25 11 Mercury at Aphelion
30 09:54 Moon at Perigee: 358995 km
31 13:27 FULL MOON
31 13:30 Total Lunar Eclipse; mag=1.315
31 18:46 Moon at Ascending Node
Feb 07 15:54 LAST QUARTER
07 19:47 Jupiter 4.3°S of Moon
09 05:12 Mars 4.4°S of Moon
11 14:16 Moon at Apogee: 405701 km
11 14:46 Saturn 2.5°S of Moon
11 16:40 Mars-Antares: 5.0°N
14 21:11 Moon at Descending Node
15 20:52 Partial Solar Eclipse; mag=0.599
15 21:05 NEW MOON
17 12 Mercury at Superior Conjunction
23 08:09 FIRST QUARTER
27 14:48 Moon at Perigee: 363938 km
28 05:03 Moon at Ascending Node
Mar 02 00:51 FULL MOON
04 14 Neptune-Sun Conjunction
07 06:57 Jupiter 4.1°S of Moon
09 11:20 LAST QUARTER
10 00:37 Mars 3.8°S of Moon
10 11 Mercury at Perihelion
11 02:37 Saturn 2.2°S of Moon
11 09:13 Moon at Apogee: 404682 km
14 03:47 Moon at Descending Node
15 15 Mercury at Greatest Elong: 18.4°E
17 13:12 NEW MOON
18 19:07 Venus 3.7°N of Moon
19 08 Mercury-Venus: 3.8°
20 16:15 Vernal Equinox
24 15:35 FIRST QUARTER
26 17:17 Moon at Perigee: 369104 km
27 10:56 Moon at Ascending Node
31 12:37 FULL MOON
Apr 01 18 Mercury at Inferior Conjunction
03 14:14 Jupiter 3.9°S of Moon
03 17 Saturn at Aphelion
07 12:50 Saturn 1.9°S of Moon
07 18:15 Mars 3.1°S of Moon
08 05:32 Moon at Apogee: 404145 km
08 07:18 LAST QUARTER
10 08:09 Moon at Descending Node
16 01:57 NEW MOON
17 19:29 Venus 5.4°N of Moon
18 15 Uranus-Sun Conjunction
20 14:44 Moon at Perigee: 368713 km
22 21:46 FIRST QUARTER
23 12:19 Moon at Ascending Node
24 16:47 Venus-Pleiades: 3.4°S
29 18 Mercury at Greatest Elong: 27.0°W
30 00:58 FULL MOON
30 17:16 Jupiter 3.8°S of Moon
May 02 13:29 Venus-Aldebaran: 6.3°N
04 20:31 Saturn 1.7°S of Moon
06 00:35 Moon at Apogee: 404458 km
06 07:24 Mars 2.7°S of Moon
07 10:23 Moon at Descending Node
08 02:09 LAST QUARTER
09 00 Jupiter at Opposition
13 17:21 Mercury 2.4°N of Moon
15 11:48 NEW MOON
16 01 Venus at Perihelion
17 18:11 Venus 4.8°N of Moon
17 21:06 Moon at Perigee: 363777 km
20 13:13 Moon at Ascending Node
22 03:49 FIRST QUARTER
27 17:39 Jupiter 4.0°S of Moon
29 14:20 FULL MOON
Jun 01 01:20 Saturn 1.6°S of Moon
02 16:34 Moon at Apogee: 405316 km
03 11:58 Mars 3.2°S of Moon
03 12:39 Moon at Descending Node
06 02 Mercury at Superior Conjunction
06 10 Mercury at Perihelion
06 18:32 LAST QUARTER
08 03:37 Venus-Pollux: 4.6°S
13 19:43 NEW MOON
14 23:55 Moon at Perigee: 359507 km
16 13:13 Venus 2.3°N of Moon
16 17:50 Moon at Ascending Node
20 02:21 Venus-Beehive: 0.4°N
20 10:51 FIRST QUARTER
21 10:07 Summer Solstice
23 18:47 Jupiter 4.2°S of Moon
24 21:37 Mercury-Pollux: 4.7°S
27 12 Saturn at Opposition
28 03:59 Saturn 1.8°S of Moon
28 04:53 FULL MOON
30 02:43 Moon at Apogee: 406061 km
30 16:44 Moon at Descending Node
|
Date GMT Event
(h:m)
Jul 04 05:39 Mercury-Beehive: 0.6°S
06 07:51 LAST QUARTER
06 15:59 Earth at Aphelion: 1.01670
09 23:34 Venus-Regulus: 0.9°N
12 05 Mercury at Greatest Elong: 26.4°E
13 02:48 NEW MOON
13 03:01 Partial Solar Eclipse; mag=0.337
13 08:28 Moon at Perigee: 357432 km
14 02:50 Moon at Ascending Node
14 22:04 Mercury 2.2°S of Moon
16 03:31 Venus 1.6°S of Moon
19 19:52 FIRST QUARTER
20 10 Mercury at Aphelion
20 23:57 Jupiter 4.4°S of Moon
25 06:10 Saturn 2.0°S of Moon
27 06 Mars at Opposition
27 05:44 Moon at Apogee: 406223 km
27 20:20 FULL MOON
27 20:22 Total Lunar Eclipse; mag=1.609
27 22:40 Moon at Descending Node
Aug 04 18:18 LAST QUARTER
09 02 Mercury at Inferior Conjunction
10 13:40 Moon at Ascending Node
10 18:05 Moon at Perigee: 358083 km
11 09:47 Partial Solar Eclipse; mag=0.735
11 09:58 NEW MOON
14 13:35 Venus 6.3°S of Moon
17 10:38 Jupiter 4.5°S of Moon
17 16 Venus at Greatest Elong: 45.9°E
18 07:49 FIRST QUARTER
21 02:09 Mercury-Beehive: 4.8°S
21 09:55 Saturn 2.1°S of Moon
23 11:23 Moon at Apogee: 405744 km
24 04:51 Moon at Descending Node
26 11:56 FULL MOON
26 20 Mercury at Greatest Elong: 18.3°W
Sep 01 04:45 Venus-Spica: 1.0°S
02 10 Mercury at Perihelion
03 02:37 LAST QUARTER
06 22:42 Moon at Ascending Node
07 17 Neptune at Opposition
08 01:21 Moon at Perigee: 361355 km
09 18:01 NEW MOON
14 02:21 Jupiter 4.4°S of Moon
16 12 Mars at Perihelion
16 23:15 FIRST QUARTER
17 16:46 Saturn 2.1°S of Moon
20 00:54 Moon at Apogee: 404875 km
20 09:30 Moon at Descending Node
21 02 Mercury at Superior Conjunction
23 01:54 Autumnal Equinox
25 02:52 FULL MOON
Oct 02 09:45 LAST QUARTER
04 03:10 Moon at Ascending Node
05 22:29 Moon at Perigee: 366396 km
09 03:47 NEW MOON
11 21:21 Jupiter 4.1°S of Moon
15 03:01 Saturn 1.8°S of Moon
16 03 Mercury-Venus: 6.2°
16 18:02 FIRST QUARTER
17 12:03 Moon at Descending Node
17 19:16 Moon at Apogee: 404227 km
18 13:01 Mars 1.9°S of Moon
24 01 Uranus at Opposition
24 16:45 FULL MOON
26 14 Venus at Inferior Conjunction
29 06 Mercury-Jupiter: 3.1°
31 03:46 Moon at Ascending Node
31 16:40 LAST QUARTER
31 20:05 Moon at Perigee: 370201 km
Nov 06 15 Mercury at Greatest Elong: 23.3°E
07 16:02 NEW MOON
09 04:58 Mercury-Antares: 1.8°N
11 15:46 Saturn 1.4°S of Moon
13 14:04 Moon at Descending Node
14 15:57 Moon at Apogee: 404341 km
14 23:14 Venus-Spica: 0.2°S
15 14:54 FIRST QUARTER
16 04:16 Mars 1.0°N of Moon: Occn.
23 05:39 FULL MOON
26 06 Jupiter-Sun Conjunction
26 12:10 Moon at Perigee: 366623 km
27 05:18 Moon at Ascending Node
27 09 Mercury at Inferior Conjunction
29 09 Mercury at Perihelion
30 00:19 LAST QUARTER
Dec 03 18:42 Venus 3.6°S of Moon
07 07:20 NEW MOON
09 05:30 Saturn 1.1°S of Moon: Occn.
10 17:57 Moon at Descending Node
12 12:25 Moon at Apogee: 405177 km
14 23:21 Mars 3.6°N of Moon
15 11 Mercury at Greatest Elong: 21.3°W
15 11:49 FIRST QUARTER
21 20 Mercury-Jupiter: 0.8°
21 22:22 Winter Solstice
22 08:05 Mercury-Antares: 5.8°N
22 15:03 Jupiter-Antares: 5.1°N
22 17:49 FULL MOON
24 09:52 Moon at Perigee: 361060 km
24 11:54 Moon at Ascending Node
26 18 Venus at Perihelion
29 09:34 LAST QUARTER
|
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- Perihelion - the position in a planet's orbit closest to the Sun
- Aphelion - the position in a planet's orbit furthest from the Sun
- Perigee - the position in the Moon's orbit closest to Earth
- Apogee - the position in the Moon's orbit furthest from Earth
- Inferior Conjunction - Mercury or Venus passes between Earth and the Sun
- Superior Conjunction - Mercury or Venus passes on the opposite side of the Sun from Earth
- Greatest Elongation - elongation is the angle between the Sun and a planet as seen from Earth; during eastern elongation (E), the planet appears as an evening star; during western elongation (W), the planet appears as a morning star
- Opposition - the position in a planet's orbit when it appears opposite the Sun as seen from Earth
- Conjunction - the position in a planet's orbit when it appears closest the Sun as seen from Earth
- Occultation - the Moon occults or eclipses a star or planet
- Ascending Node - the point where a planet crosses from the southern to northern portion of its orbit
- Descending Node - the point where a planet crosses from the northern to the southern portion of its orbit
Calendars for Other Years and Time Zones
The table below contains links to astronomical events calendars for a range of years and Time Zones. Abbreviations for the time zones are: GMT = Greenwich Mean Time, AST = Atlantic Standard Time, EST = Eastern Standard Time, CST = Central Standard Time, MST = Mountain Standard Time, PST = Pacific Standard Time, AKST = Alaskan Standard Time, and HST = Hawaiian Standard Time.
| Calendar of Astronomical Events | |||||||||||||||
| GMT | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
| AST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
| EST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
| CST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
| MST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
| PST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
| AKST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
| HST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
For years or time zones not covered above, please visit SKYCAL the astronomical events calendar generator.