2018 Sky Event Almanac
Pacific Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Pacific Standard Time (Coordinated Universal Time − 8 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 | ||||||||
| Pacific Standard Time | ||||||||
| January - June | July - December | |||||||
Date PST Event
(h:m)
Jan 01 12 Mercury at Greatest Elong: 22.7°W
01 13:54 Moon at Perigee: 356566 km
01 18:24 FULL MOON
02 22 Earth at Perihelion: 0.98329 AU
03 12 Quadrantid Meteor Shower
03 23:48 Moon at Ascending Node
04 23:24 Regulus 0.9°S of Moon
06 17 Mars 0.2°S of Jupiter
08 14:25 LAST QUARTER MOON
08 22 Venus at Superior Conjunction
10 21:59 Jupiter 4.3°S of Moon
13 00 Mercury 0.7°S of Saturn
14 18:10 Moon at Apogee: 406461 km
14 18:13 Saturn 2.6°S of Moon
14 23:24 Mercury 3.4°S of Moon
16 18:17 NEW MOON
18 06:28 Moon at Descending Node
23 09 Venus at Aphelion
24 14:20 FIRST QUARTER MOON
25 03 Mercury at Aphelion
27 02:09 Aldebaran 0.7°S of Moon
30 01:54 Moon at Perigee: 358995 km
31 05:27 FULL MOON
31 05:30 Total Lunar Eclipse; mag=1.315
31 10:46 Moon at Ascending Node
Feb 01 10:24 Regulus 0.9°S of Moon
07 07:54 LAST QUARTER MOON
07 11:47 Jupiter 4.3°S of Moon
08 21:12 Mars 4.4°S of Moon
11 06:16 Moon at Apogee: 405701 km
11 06:46 Saturn 2.5°S of Moon
14 13:11 Moon at Descending Node
15 12:51 Partial Solar Eclipse; mag=0.599
15 13:05 NEW MOON
17 04 Mercury at Superior Conjunction
23 00:09 FIRST QUARTER MOON
23 09:07 Aldebaran 0.7°S of Moon
27 06:48 Moon at Perigee: 363938 km
27 21:03 Moon at Ascending Node
28 21:09 Regulus 0.9°S of Moon
Mar 01 16:51 FULL MOON
04 06 Neptune in Conjunction with Sun
06 22:57 Jupiter 4.1°S of Moon
09 03:20 LAST QUARTER MOON
09 16:37 Mars 3.8°S of Moon
10 03 Mercury at Perihelion
10 18:37 Saturn 2.2°S of Moon
11 01:13 Moon at Apogee: 404682 km
13 19:47 Moon at Descending Node
15 07 Mercury at Greatest Elong: 18.4°E
17 05:12 NEW MOON
18 11:07 Venus 3.7°N of Moon
19 00 Mercury 3.8°N of Venus
20 08:15 Vernal Equinox
22 14:33 Aldebaran 0.9°S of Moon
24 07:35 FIRST QUARTER MOON
26 09:17 Moon at Perigee: 369104 km
27 02:56 Moon at Ascending Node
28 05:38 Regulus 1.0°S of Moon
31 04:37 FULL MOON
Apr 01 10 Mercury at Inferior Conjunction
02 11 Mars 1.3°S of Saturn
03 06:14 Jupiter 3.9°S of Moon
07 04:50 Saturn 1.9°S of Moon
07 10:15 Mars 3.1°S of Moon
07 21:32 Moon at Apogee: 404145 km
07 23:18 LAST QUARTER MOON
10 00:09 Moon at Descending Node
14 01:24 Mercury 3.9°N of Moon
15 17:57 NEW MOON
17 04 Saturn at Aphelion: 10.06564 AU
18 07 Uranus in Conjunction with Sun
18 20:45 Aldebaran 1.1°S of Moon
20 06:44 Moon at Perigee: 368713 km
22 10 Lyrid Meteor Shower
22 13:46 FIRST QUARTER MOON
23 04:19 Moon at Ascending Node
24 08:47 Venus 3.4°S of Pleiades
24 11:39 Regulus 1.2°S of Moon
29 10 Mercury at Greatest Elong: 27.0°W
29 16:58 FULL MOON
30 09:16 Jupiter 3.8°S of Moon
May 04 12:31 Saturn 1.7°S of Moon
04 23 Eta-Aquarid Meteor Shower
05 16:35 Moon at Apogee: 404458 km
05 23:24 Mars 2.7°S of Moon
07 02:23 Moon at Descending Node
07 18:09 LAST QUARTER MOON
08 16 Jupiter at Opposition
13 09:21 Mercury 2.4°N of Moon
15 03:48 NEW MOON
15 17 Venus at Perihelion
16 05:04 Aldebaran 1.2°S of Moon
17 10:11 Venus 4.8°N of Moon
17 13:06 Moon at Perigee: 363777 km
20 05:13 Moon at Ascending Node
21 16:53 Regulus 1.4°S of Moon
21 19:49 FIRST QUARTER MOON
27 09:39 Jupiter 4.0°S of Moon
29 06:20 FULL MOON
31 17:20 Saturn 1.6°S of Moon
Jun 02 08:34 Moon at Apogee: 405316 km
03 03:58 Mars 3.2°S of Moon
03 04:39 Moon at Descending Node
05 18 Mercury at Superior Conjunction
06 02 Mercury at Perihelion
06 10:32 LAST QUARTER MOON
07 19:37 Venus 4.6°S of Pollux
13 11:43 NEW MOON
14 15:55 Moon at Perigee: 359507 km
16 05:13 Venus 2.3°N of Moon
16 09:50 Moon at Ascending Node
17 23:25 Regulus 1.7°S of Moon
20 02:51 FIRST QUARTER MOON
21 02:07 Summer Solstice
23 10:47 Jupiter 4.2°S of Moon
24 13:37 Mercury 4.7°S of Pollux
27 04 Saturn at Opposition
27 19:59 Saturn 1.8°S of Moon
27 20:53 FULL MOON
29 18:43 Moon at Apogee: 406061 km
30 08:44 Moon at Descending Node
|
Date PST Event
(h:m)
Jul 05 23:51 LAST QUARTER MOON
06 09 Earth at Aphelion: 1.01670 AU
09 15:34 Venus 0.9°N of Regulus
10 01:30 Aldebaran 1.1°S of Moon
11 21 Mercury at Greatest Elong: 26.4°E
12 18:48 NEW MOON
12 19:01 Partial Solar Eclipse; mag=0.337
13 00:28 Moon at Perigee: 357432 km
13 18:50 Moon at Ascending Node
14 14:04 Mercury 2.2°S of Moon
15 08:14 Regulus 1.7°S of Moon
15 19:31 Venus 1.6°S of Moon
19 11:52 FIRST QUARTER MOON
20 02 Mercury at Aphelion
20 15:57 Jupiter 4.4°S of Moon
24 22:10 Saturn 2.0°S of Moon
26 22 Mars at Opposition
26 21:44 Moon at Apogee: 406223 km
27 12:20 FULL MOON
27 12:22 Total Lunar Eclipse; mag=1.609
27 14:40 Moon at Descending Node
28 01 Delta-Aquarid Meteor Shower
Aug 04 10:18 LAST QUARTER MOON
06 10:35 Aldebaran 1.1°S of Moon
08 18 Mercury at Inferior Conjunction
10 05:40 Moon at Ascending Node
10 10:05 Moon at Perigee: 358083 km
11 01:46 Partial Solar Eclipse; mag=0.737
11 01:58 NEW MOON
12 17 Perseid Meteor Shower
17 02:38 Jupiter 4.5°S of Moon
17 08 Venus at Greatest Elong: 45.9°E
17 23:49 FIRST QUARTER MOON
21 01:55 Saturn 2.1°S of Moon
23 03:23 Moon at Apogee: 405744 km
23 20:51 Moon at Descending Node
26 03:56 FULL MOON
26 12 Mercury at Greatest Elong: 18.3°W
31 20:45 Venus 1.0°S of Spica
Sep 02 02 Mercury at Perihelion
02 17:34 Aldebaran 1.2°S of Moon
02 18:37 LAST QUARTER MOON
06 14:42 Moon at Ascending Node
07 09 Neptune at Opposition
07 17:21 Moon at Perigee: 361355 km
08 05:13 Regulus 1.7°S of Moon
09 10:01 NEW MOON
13 18:21 Jupiter 4.4°S of Moon
16 05 Mars at Perihelion: 1.38144 AU
16 15:15 FIRST QUARTER MOON
17 08:46 Saturn 2.1°S of Moon
19 16:54 Moon at Apogee: 404875 km
20 01:30 Moon at Descending Node
20 18 Mercury at Superior Conjunction
22 17:54 Autumnal Equinox
24 18:52 FULL MOON
29 23:06 Aldebaran 1.4°S of Moon
Oct 02 01:45 LAST QUARTER MOON
03 19:10 Moon at Ascending Node
05 13:58 Regulus 1.8°S of Moon
05 14:29 Moon at Perigee: 366396 km
08 19:47 NEW MOON
11 13:21 Jupiter 4.1°S of Moon
14 19:01 Saturn 1.8°S of Moon
16 10:02 FIRST QUARTER MOON
17 04:03 Moon at Descending Node
17 11:16 Moon at Apogee: 404227 km
18 05:01 Mars 1.9°S of Moon
21 09 Orionid Meteor Shower
23 17 Uranus at Opposition
24 08:45 FULL MOON
26 06 Venus at Inferior Conjunction
27 05:04 Aldebaran 1.6°S of Moon
28 22 Mercury 3.1°S of Jupiter
30 19:46 Moon at Ascending Node
31 08:40 LAST QUARTER MOON
31 12:05 Moon at Perigee: 370201 km
Nov 01 20:16 Regulus 2.1°S of Moon
05 10 S Taurid Meteor Shower
06 07 Mercury at Greatest Elong: 23.3°E
07 08:02 NEW MOON
08 20:58 Mercury 1.8°N of Antares
11 07:46 Saturn 1.4°S of Moon
12 09 N Taurid Meteor Shower
13 06:04 Moon at Descending Node
14 07:57 Moon at Apogee: 404341 km
14 15:14 Venus 0.2°S of Spica
15 06:54 FIRST QUARTER MOON
15 20:16 Mars 1.0°N of Moon: Occn.
17 15 Leonid Meteor Shower
22 21:39 FULL MOON
23 13:11 Aldebaran 1.7°S of Moon
25 22 Jupiter in Conjunction with Sun
26 04:10 Moon at Perigee: 366623 km
26 21:18 Moon at Ascending Node
27 01 Mercury at Inferior Conjunction
29 01 Mercury at Perihelion
29 01:27 Regulus 2.3°S of Moon
29 16:19 LAST QUARTER MOON
Dec 03 10:42 Venus 3.6°S of Moon
05 13:06 Mercury 1.9°S of Moon
06 23:20 NEW MOON
08 21:30 Saturn 1.1°S of Moon: Occn.
10 09:57 Moon at Descending Node
12 04:25 Moon at Apogee: 405177 km
14 04 Geminid Meteor Shower
14 15:21 Mars 3.6°N of Moon
15 03 Mercury at Greatest Elong: 21.3°W
15 03:49 FIRST QUARTER MOON
20 23:31 Aldebaran 1.7°S of Moon
21 12 Mercury 0.8°N of Jupiter
21 14:22 Winter Solstice
22 09:49 FULL MOON
22 13 Ursid Meteor Shower
24 01:52 Moon at Perigee: 361060 km
24 03:54 Moon at Ascending Node
26 08:06 Regulus 2.5°S of Moon
26 10 Venus at Perihelion
29 01:34 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
Pacific Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Pacific Standard Time (Coordinated Universal Time − 8 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 | |||
| Pacific Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | Jan 01 18:24 | Jan 08 14:25 |
| Jan 16 18:17 | Jan 24 14:20 | Jan 31 05:27 t | Feb 07 07:54 |
| Feb 15 13:05 P | Feb 23 00:09 | Mar 01 16:51 | Mar 09 03:20 |
| Mar 17 05:12 | Mar 24 07:35 | Mar 31 04:37 | Apr 07 23:18 |
| Apr 15 17:57 | Apr 22 13:46 | Apr 29 16:58 | May 07 18:09 |
| May 15 03:48 | May 21 19:49 | May 29 06:20 | Jun 06 10:32 |
| Jun 13 11:43 | Jun 20 02:51 | Jun 27 20:53 | Jul 05 23:51 |
| Jul 12 18:48 P | Jul 19 11:52 | Jul 27 12:20 t | Aug 04 10:18 |
| Aug 11 01:58 P | Aug 17 23:49 | Aug 26 03:56 | Sep 02 18:37 |
| Sep 09 10:01 | Sep 16 15:15 | Sep 24 18:53 | Oct 02 01:45 |
| Oct 08 19:47 | Oct 16 10:02 | Oct 24 08:45 | Oct 31 08:40 |
| Nov 07 08:02 | Nov 15 06:54 | Nov 22 21:39 | Nov 29 16:19 |
| Dec 06 23:20 | Dec 15 03:49 | Dec 22 09:49 | Dec 29 01:34 |
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)