2018 Sky Event Almanac
Atlantic Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Atlantic Standard Time (Coordinated Universal Time − 4 hours) . This time zone may have different names in different countries. If Daylight Saving Time is in effect, add one hour to the times listed. A key to astronomical terms appears below the almanac.
| 2018 Sky Event Almanac | ||||||||
| Atlantic Standard Time | ||||||||
| January - June | July - December | |||||||
Date AST Event
(h:m)
Jan 01 16 Mercury at Greatest Elong: 22.7°W
01 17:54 Moon at Perigee: 356566 km
01 22:24 FULL MOON
03 02 Earth at Perihelion: 0.98329 AU
03 16 Quadrantid Meteor Shower
04 03:48 Moon at Ascending Node
05 03:24 Regulus 0.9°S of Moon
06 21 Mars 0.2°S of Jupiter
08 18:25 LAST QUARTER MOON
09 02 Venus at Superior Conjunction
11 01:59 Jupiter 4.3°S of Moon
13 04 Mercury 0.7°S of Saturn
14 22:10 Moon at Apogee: 406461 km
14 22:13 Saturn 2.6°S of Moon
15 03:24 Mercury 3.4°S of Moon
16 22:17 NEW MOON
18 10:28 Moon at Descending Node
23 13 Venus at Aphelion
24 18:20 FIRST QUARTER MOON
25 07 Mercury at Aphelion
27 06:09 Aldebaran 0.7°S of Moon
30 05:54 Moon at Perigee: 358995 km
31 09:27 FULL MOON
31 09:30 Total Lunar Eclipse; mag=1.315
31 14:46 Moon at Ascending Node
Feb 01 14:24 Regulus 0.9°S of Moon
07 11:54 LAST QUARTER MOON
07 15:47 Jupiter 4.3°S of Moon
09 01:12 Mars 4.4°S of Moon
11 10:16 Moon at Apogee: 405701 km
11 10:46 Saturn 2.5°S of Moon
14 17:11 Moon at Descending Node
15 16:51 Partial Solar Eclipse; mag=0.599
15 17:05 NEW MOON
17 08 Mercury at Superior Conjunction
23 04:09 FIRST QUARTER MOON
23 13:07 Aldebaran 0.7°S of Moon
27 10:48 Moon at Perigee: 363938 km
28 01:03 Moon at Ascending Node
Mar 01 01:09 Regulus 0.9°S of Moon
01 20:51 FULL MOON
04 10 Neptune in Conjunction with Sun
07 02:57 Jupiter 4.1°S of Moon
09 07:20 LAST QUARTER MOON
09 20:37 Mars 3.8°S of Moon
10 07 Mercury at Perihelion
10 22:37 Saturn 2.2°S of Moon
11 05:13 Moon at Apogee: 404682 km
13 23:47 Moon at Descending Node
15 11 Mercury at Greatest Elong: 18.4°E
17 09:12 NEW MOON
18 15:07 Venus 3.7°N of Moon
19 04 Mercury 3.8°N of Venus
20 12:15 Vernal Equinox
22 18:33 Aldebaran 0.9°S of Moon
24 11:35 FIRST QUARTER MOON
26 13:17 Moon at Perigee: 369104 km
27 06:56 Moon at Ascending Node
28 09:38 Regulus 1.0°S of Moon
31 08:37 FULL MOON
Apr 01 14 Mercury at Inferior Conjunction
02 15 Mars 1.3°S of Saturn
03 10:14 Jupiter 3.9°S of Moon
07 08:50 Saturn 1.9°S of Moon
07 14:15 Mars 3.1°S of Moon
08 01:32 Moon at Apogee: 404145 km
08 03:18 LAST QUARTER MOON
10 04:09 Moon at Descending Node
14 05:24 Mercury 3.9°N of Moon
15 21:57 NEW MOON
17 08 Saturn at Aphelion: 10.06564 AU
18 11 Uranus in Conjunction with Sun
19 00:45 Aldebaran 1.1°S of Moon
20 10:44 Moon at Perigee: 368713 km
22 14 Lyrid Meteor Shower
22 17:46 FIRST QUARTER MOON
23 08:19 Moon at Ascending Node
24 12:47 Venus 3.4°S of Pleiades
24 15:39 Regulus 1.2°S of Moon
29 14 Mercury at Greatest Elong: 27.0°W
29 20:58 FULL MOON
30 13:16 Jupiter 3.8°S of Moon
May 04 16:31 Saturn 1.7°S of Moon
05 03 Eta-Aquarid Meteor Shower
05 20:35 Moon at Apogee: 404458 km
06 03:24 Mars 2.7°S of Moon
07 06:23 Moon at Descending Node
07 22:09 LAST QUARTER MOON
08 20 Jupiter at Opposition
13 13:21 Mercury 2.4°N of Moon
15 07:48 NEW MOON
15 21 Venus at Perihelion
16 09:04 Aldebaran 1.2°S of Moon
17 14:11 Venus 4.8°N of Moon
17 17:06 Moon at Perigee: 363777 km
20 09:13 Moon at Ascending Node
21 20:53 Regulus 1.4°S of Moon
21 23:49 FIRST QUARTER MOON
27 13:39 Jupiter 4.0°S of Moon
29 10:20 FULL MOON
31 21:20 Saturn 1.6°S of Moon
Jun 02 12:34 Moon at Apogee: 405316 km
03 07:58 Mars 3.2°S of Moon
03 08:39 Moon at Descending Node
05 22 Mercury at Superior Conjunction
06 06 Mercury at Perihelion
06 14:32 LAST QUARTER MOON
07 23:37 Venus 4.6°S of Pollux
13 15:43 NEW MOON
14 19:55 Moon at Perigee: 359507 km
16 09:13 Venus 2.3°N of Moon
16 13:50 Moon at Ascending Node
18 03:25 Regulus 1.7°S of Moon
20 06:51 FIRST QUARTER MOON
21 06:07 Summer Solstice
23 14:47 Jupiter 4.2°S of Moon
24 17:37 Mercury 4.7°S of Pollux
27 08 Saturn at Opposition
27 23:59 Saturn 1.8°S of Moon
28 00:53 FULL MOON
29 22:43 Moon at Apogee: 406061 km
30 12:44 Moon at Descending Node
|
Date AST Event
(h:m)
Jul 06 03:51 LAST QUARTER MOON
06 13 Earth at Aphelion: 1.01670 AU
09 19:34 Venus 0.9°N of Regulus
10 05:30 Aldebaran 1.1°S of Moon
12 01 Mercury at Greatest Elong: 26.4°E
12 22:48 NEW MOON
12 23:01 Partial Solar Eclipse; mag=0.337
13 04:28 Moon at Perigee: 357432 km
13 22:50 Moon at Ascending Node
14 18:04 Mercury 2.2°S of Moon
15 12:14 Regulus 1.7°S of Moon
15 23:31 Venus 1.6°S of Moon
19 15:52 FIRST QUARTER MOON
20 06 Mercury at Aphelion
20 19:57 Jupiter 4.4°S of Moon
25 02:10 Saturn 2.0°S of Moon
27 02 Mars at Opposition
27 01:44 Moon at Apogee: 406223 km
27 16:20 FULL MOON
27 16:22 Total Lunar Eclipse; mag=1.609
27 18:40 Moon at Descending Node
28 05 Delta-Aquarid Meteor Shower
Aug 04 14:18 LAST QUARTER MOON
06 14:35 Aldebaran 1.1°S of Moon
08 22 Mercury at Inferior Conjunction
10 09:40 Moon at Ascending Node
10 14:05 Moon at Perigee: 358083 km
11 05:46 Partial Solar Eclipse; mag=0.737
11 05:58 NEW MOON
12 21 Perseid Meteor Shower
17 06:38 Jupiter 4.5°S of Moon
17 12 Venus at Greatest Elong: 45.9°E
18 03:49 FIRST QUARTER MOON
21 05:55 Saturn 2.1°S of Moon
23 07:23 Moon at Apogee: 405744 km
24 00:51 Moon at Descending Node
26 07:56 FULL MOON
26 16 Mercury at Greatest Elong: 18.3°W
Sep 01 00:45 Venus 1.0°S of Spica
02 06 Mercury at Perihelion
02 21:34 Aldebaran 1.2°S of Moon
02 22:37 LAST QUARTER MOON
06 18:42 Moon at Ascending Node
07 13 Neptune at Opposition
07 21:21 Moon at Perigee: 361355 km
08 09:13 Regulus 1.7°S of Moon
09 14:01 NEW MOON
13 22:21 Jupiter 4.4°S of Moon
16 09 Mars at Perihelion: 1.38144 AU
16 19:15 FIRST QUARTER MOON
17 12:46 Saturn 2.1°S of Moon
19 20:54 Moon at Apogee: 404875 km
20 05:30 Moon at Descending Node
20 22 Mercury at Superior Conjunction
22 21:54 Autumnal Equinox
24 22:52 FULL MOON
30 03:06 Aldebaran 1.4°S of Moon
Oct 02 05:45 LAST QUARTER MOON
03 23:10 Moon at Ascending Node
05 17:58 Regulus 1.8°S of Moon
05 18:29 Moon at Perigee: 366396 km
08 23:47 NEW MOON
11 17:21 Jupiter 4.1°S of Moon
14 23:01 Saturn 1.8°S of Moon
16 14:02 FIRST QUARTER MOON
17 08:03 Moon at Descending Node
17 15:16 Moon at Apogee: 404227 km
18 09:01 Mars 1.9°S of Moon
21 13 Orionid Meteor Shower
23 21 Uranus at Opposition
24 12:45 FULL MOON
26 10 Venus at Inferior Conjunction
27 09:04 Aldebaran 1.6°S of Moon
29 02 Mercury 3.1°S of Jupiter
30 23:46 Moon at Ascending Node
31 12:40 LAST QUARTER MOON
31 16:05 Moon at Perigee: 370201 km
Nov 02 00:16 Regulus 2.1°S of Moon
05 14 S Taurid Meteor Shower
06 11 Mercury at Greatest Elong: 23.3°E
07 12:02 NEW MOON
09 00:58 Mercury 1.8°N of Antares
11 11:46 Saturn 1.4°S of Moon
12 13 N Taurid Meteor Shower
13 10:04 Moon at Descending Node
14 11:57 Moon at Apogee: 404341 km
14 19:14 Venus 0.2°S of Spica
15 10:54 FIRST QUARTER MOON
16 00:16 Mars 1.0°N of Moon: Occn.
17 19 Leonid Meteor Shower
23 01:39 FULL MOON
23 17:11 Aldebaran 1.7°S of Moon
26 02 Jupiter in Conjunction with Sun
26 08:10 Moon at Perigee: 366623 km
27 01:18 Moon at Ascending Node
27 05 Mercury at Inferior Conjunction
29 05 Mercury at Perihelion
29 05:27 Regulus 2.3°S of Moon
29 20:19 LAST QUARTER MOON
Dec 03 14:42 Venus 3.6°S of Moon
05 17:06 Mercury 1.9°S of Moon
07 03:20 NEW MOON
09 01:30 Saturn 1.1°S of Moon: Occn.
10 13:57 Moon at Descending Node
12 08:25 Moon at Apogee: 405177 km
14 08 Geminid Meteor Shower
14 19:21 Mars 3.6°N of Moon
15 07 Mercury at Greatest Elong: 21.3°W
15 07:49 FIRST QUARTER MOON
21 03:31 Aldebaran 1.7°S of Moon
21 16 Mercury 0.8°N of Jupiter
21 18:22 Winter Solstice
22 13:49 FULL MOON
22 17 Ursid Meteor Shower
24 05:52 Moon at Perigee: 361060 km
24 07:54 Moon at Ascending Node
26 12:06 Regulus 2.5°S of Moon
26 14 Venus at Perihelion
29 05:34 LAST QUARTER MOON
|
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Terms Used in Sky Event Almanac
- Perihelion - instant when a planet is closest to the Sun
- Aphelion - instant when a planet is furthest from the Sun
- Perigee - instant when the Moon is closest to Earth
- Apogee - instant when the Moon is furthest from Earth
- Inferior Conjunction - instant when a planet (Mercury or Venus) passes between Earth and the Sun
- Superior Conjunction - instant when a planet (Mercury or Venus) passes on the opposite side of the Sun from Earth
- Greatest Elongation - the maximum angular separation between the Sun and the planet (Mercury or Venus) 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 - instant when a planet appears opposite the Sun as seen from Earth
- Conjunction - instant when a planet appears closest the Sun as seen from Earth
- Occultation - the Moon occults or eclipses a star or planet
- Ascending Node - point where the Moon crosses from the southern to northern portion of its orbit
- Descending Node - point where the Moon crosses from the northern to the southern portion of its orbit
- Aldebaran - bright star in the constellation Taurus
- Pollux - bright star in the constellation Gemini
- Regulus - bright star in the constellation Leo
- Spica - bright star in the constellation Virgo
- Antares - bright star in the constellation Scorpius
- Pleiades - bright star cluster in the constellation Taurus
2018 Phases of the Moon
Atlantic Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Atlantic Standard Time (Coordinated Universal Time − 4 hours) . This time zone may have different names in different countries. If Daylight Saving Time is in effect, add one hour to the times listed.
| 2018 Phases of the Moon | |||
| Atlantic Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | Jan 01 22:24 | Jan 08 18:25 |
| Jan 16 22:17 | Jan 24 18:20 | Jan 31 09:27 t | Feb 07 11:54 |
| Feb 15 17:05 P | Feb 23 04:09 | Mar 01 20:51 | Mar 09 07:20 |
| Mar 17 09:12 | Mar 24 11:35 | Mar 31 08:37 | Apr 08 03:18 |
| Apr 15 21:57 | Apr 22 17:46 | Apr 29 20:58 | May 07 22:09 |
| May 15 07:48 | May 21 23:49 | May 29 10:20 | Jun 06 14:32 |
| Jun 13 15:43 | Jun 20 06:51 | Jun 28 00:53 | Jul 06 03:51 |
| Jul 12 22:48 P | Jul 19 15:52 | Jul 27 16:20 t | Aug 04 14:18 |
| Aug 11 05:58 P | Aug 18 03:49 | Aug 26 07:56 | Sep 02 22:37 |
| Sep 09 14:01 | Sep 16 19:15 | Sep 24 22:53 | Oct 02 05:45 |
| Oct 08 23:47 | Oct 16 14:02 | Oct 24 12:45 | Oct 31 12:40 |
| Nov 07 12:02 | Nov 15 10:54 | Nov 23 01:39 | Nov 29 20:19 |
| Dec 07 03:20 | Dec 15 07:49 | Dec 22 13:49 | Dec 29 05:34 |
For a collection of images showing the Moon's phases see: Phases of the Moon Photo Gallery.
The Phases of the Moon table also shows when an eclipse takes place. 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 Phases of the Moon table. 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.
Solar Eclipses
The following table contains links to a series of web pages covering the 21st Century. Each one summarizes ten years of solar eclipses. Every eclipse has links to a global visibility map, an interactive Google map, tables, and additional information.
| Decade Pages of Solar Eclipses | |||||
| Decades | |||||
|---|---|---|---|---|---|
| 2001-2010 | 2011-2020 | 2021-2030 | 2031-2040 | 2041-2050 | |
| 2051-2060 | 2061-2070 | 2071-2080 | 2081-2090 | 2091-2100 | |
Lunar Eclipses
The following table contains links to a series of web pages covering the 21st Century. Each one summarizes ten years of lunar eclipses. Every eclipse has links to an eclipse diagram, a global visibility map, tables, and additional information.
| Decade Pages of Lunar Eclipses | |||||
| Decades | |||||
|---|---|---|---|---|---|
| 2001-2010 | 2011-2020 | 2021-2030 | 2031-2040 | 2041-2050 | |
| 2051-2060 | 2061-2070 | 2071-2080 | 2081-2090 | 2091-2100 | |
Sky Event Almanacs: 2011 to 2020
The Americas
Below are links to sky event almanacs from 2011 to 2020 for eight time zones in the Americas.
Choose a time zone and click on a year to get a sky event almanac for that year.
| Sky Event Almanacs - The Americas | |||||||||||||||
| ART | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| AST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| EST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| CST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| MST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| PST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| AKST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| HST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
- ART = Argentina Time (= UTC - 3 hours)
- AST = Atlantic Standard Time (= UTC - 4 hours)
- EST = Eastern Standard Time (= UTC - 5 hours)
- CST = Central Standard Time (= UTC - 6 hours)
- MST = Mountain Standard Time (= UTC - 7 hours)
- PST = Pacific Standard Time (= UTC - 8 hours)
- AKST = Alaskan Standard Time (= UTC - 9 hours)
- HST = Hawaiian Standard Time (= UTC - 10 hours)
(where UTC = Coordinated Universal Time)
- Time Zones Abbreviations
A time zone may have a different name in different countries. Note the difference in hours between a given time zone and Coordinated Universal Time to help in identification.
For other years and other time zones, visit: Sky Event Almanacs.
Accuracy of the Sky Event Almanacs
The goal of the Sky Event Almanacs is to present a wide range of solar system phenomena with reasonable accuracy. In general, events listed to the nearest hour are accurate to ± 30 minutes. Events listed with a precision in hours and minutes (i.e., hh:mm) are typically accurate to ± 5 minutes or less.
The following table gives a more detailed breakdown of the accuracy of times for various astronomical events.
| Accuracy of the Sky Event Almanacs | |
| Solstice/Equinox (Earth) | ± 0.5 minute |
| Aphelion/Perihelion (Earth) | ± 30 minutes; ± 0.00001 AU |
| Solar and Lunar Eclipses | ± 0.5 minute |
| Phases of the Moon | ± 0.5 minute |
| Moon at Nodes | ± 2 minutes |
| Apogee/Perigee of Moon | ± 5 minutes; ± 5 kilometers |
| Conjunctions of Moon with Star or Planet | ± 10 minutes |
| Conjunctions of Planet with Planet | ± 3 hours |
| Inferior/Superior Conjunctions (Mercury & Venus) | ± 30 minutes |
| Greatest Elongation (Mercury & Venus) | ± 30 minutes |
| Opposition/Conjunction (Outer Planets) | ± 3 hours |
| Aphelion/Perihelion of Planets | ± 30 minutes |
Fifty Year Almanac of Astronomical Events - 2021 to 2070
Acknowledgements
All calculations are by Fred Espenak and he assumes full responsibility for their accuracy. Algorithms used in predicting many of the astronomical events are based on Astronomical Algorithms by Jean Meeus (Willmann-Bell Inc. Richmond 1998).
Permission is freely granted to reproduce this data when accompanied by the acknowledgment:
- "Sky Event Almanacs Courtesy of Fred Espenak, www.AstroPixels.com".
Return to: Sky Event Almanacs
Return to: Planetary Ephemeris Data
Useful External Links
Interactive Sky Chart (Sky and Telescope)
Sky Maps (sky-map.org)
Astronomical Almanac (Sky and Telescope)
Weather Forecast for Astronomy (Clear Outside)
GOES-East Images (NOAA-GOES)
Astronomy Tools (Astronomy Tools)