2018 Sky Event Almanac
Alaska Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Alaska Standard Time (Coordinated Universal Time − 9 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 | ||||||||
| Alaska Standard Time | ||||||||
| January - June | July - December | |||||||
Date AKST Even
(h:m)
Jan 01 11 Mercury at Greatest Elong: 22.7°W
01 12:54 Moon at Perigee: 356566 km
01 17:24 FULL MOON
02 21 Earth at Perihelion: 0.98329 AU
03 11 Quadrantid Meteor Shower
03 22:48 Moon at Ascending Node
04 22:24 Regulus 0.9°S of Moon
06 16 Mars 0.2°S of Jupiter
08 13:25 LAST QUARTER MOON
08 21 Venus at Superior Conjunction
10 20:59 Jupiter 4.3°S of Moon
12 23 Mercury 0.7°S of Saturn
14 17:10 Moon at Apogee: 406461 km
14 17:13 Saturn 2.6°S of Moon
14 22:24 Mercury 3.4°S of Moon
16 17:17 NEW MOON
18 05:28 Moon at Descending Node
23 08 Venus at Aphelion
24 13:20 FIRST QUARTER MOON
25 02 Mercury at Aphelion
27 01:09 Aldebaran 0.7°S of Moon
30 00:54 Moon at Perigee: 358995 km
31 04:27 FULL MOON
31 04:30 Total Lunar Eclipse; mag=1.315
31 09:46 Moon at Ascending Node
Feb 01 09:24 Regulus 0.9°S of Moon
07 06:54 LAST QUARTER MOON
07 10:47 Jupiter 4.3°S of Moon
08 20:12 Mars 4.4°S of Moon
11 05:16 Moon at Apogee: 405701 km
11 05:46 Saturn 2.5°S of Moon
14 12:11 Moon at Descending Node
15 11:51 Partial Solar Eclipse; mag=0.599
15 12:05 NEW MOON
17 03 Mercury at Superior Conjunction
22 23:09 FIRST QUARTER MOON
23 08:07 Aldebaran 0.7°S of Moon
27 05:48 Moon at Perigee: 363938 km
27 20:03 Moon at Ascending Node
28 20:09 Regulus 0.9°S of Moon
Mar 01 15:51 FULL MOON
04 05 Neptune in Conjunction with Sun
06 21:57 Jupiter 4.1°S of Moon
09 02:20 LAST QUARTER MOON
09 15:37 Mars 3.8°S of Moon
10 02 Mercury at Perihelion
10 17:37 Saturn 2.2°S of Moon
11 00:13 Moon at Apogee: 404682 km
13 18:47 Moon at Descending Node
15 06 Mercury at Greatest Elong: 18.4°E
17 04:12 NEW MOON
18 10:07 Venus 3.7°N of Moon
18 23 Mercury 3.8°N of Venus
20 07:15 Vernal Equinox
22 13:33 Aldebaran 0.9°S of Moon
24 06:35 FIRST QUARTER MOON
26 08:17 Moon at Perigee: 369104 km
27 01:56 Moon at Ascending Node
28 04:38 Regulus 1.0°S of Moon
31 03:37 FULL MOON
Apr 01 09 Mercury at Inferior Conjunction
02 10 Mars 1.3°S of Saturn
03 05:14 Jupiter 3.9°S of Moon
07 03:50 Saturn 1.9°S of Moon
07 09:15 Mars 3.1°S of Moon
07 20:32 Moon at Apogee: 404145 km
07 22:18 LAST QUARTER MOON
09 23:09 Moon at Descending Node
14 00:24 Mercury 3.9°N of Moon
15 16:57 NEW MOON
17 03 Saturn at Aphelion: 10.06564 AU
18 06 Uranus in Conjunction with Sun
18 19:45 Aldebaran 1.1°S of Moon
20 05:44 Moon at Perigee: 368713 km
22 09 Lyrid Meteor Shower
22 12:46 FIRST QUARTER MOON
23 03:19 Moon at Ascending Node
24 07:47 Venus 3.4°S of Pleiades
24 10:39 Regulus 1.2°S of Moon
29 09 Mercury at Greatest Elong: 27.0°W
29 15:58 FULL MOON
30 08:16 Jupiter 3.8°S of Moon
May 04 11:31 Saturn 1.7°S of Moon
04 22 Eta-Aquarid Meteor Shower
05 15:35 Moon at Apogee: 404458 km
05 22:24 Mars 2.7°S of Moon
07 01:23 Moon at Descending Node
07 17:09 LAST QUARTER MOON
08 15 Jupiter at Opposition
13 08:21 Mercury 2.4°N of Moon
15 02:48 NEW MOON
15 16 Venus at Perihelion
16 04:04 Aldebaran 1.2°S of Moon
17 09:11 Venus 4.8°N of Moon
17 12:06 Moon at Perigee: 363777 km
20 04:13 Moon at Ascending Node
21 15:53 Regulus 1.4°S of Moon
21 18:49 FIRST QUARTER MOON
27 08:39 Jupiter 4.0°S of Moon
29 05:20 FULL MOON
31 16:20 Saturn 1.6°S of Moon
Jun 02 07:34 Moon at Apogee: 405316 km
03 02:58 Mars 3.2°S of Moon
03 03:39 Moon at Descending Node
05 17 Mercury at Superior Conjunction
06 01 Mercury at Perihelion
06 09:32 LAST QUARTER MOON
07 18:37 Venus 4.6°S of Pollux
13 10:43 NEW MOON
14 14:55 Moon at Perigee: 359507 km
16 04:13 Venus 2.3°N of Moon
16 08:50 Moon at Ascending Node
17 22:25 Regulus 1.7°S of Moon
20 01:51 FIRST QUARTER MOON
21 01:07 Summer Solstice
23 09:47 Jupiter 4.2°S of Moon
24 12:37 Mercury 4.7°S of Pollux
27 03 Saturn at Opposition
27 18:59 Saturn 1.8°S of Moon
27 19:53 FULL MOON
29 17:43 Moon at Apogee: 406061 km
30 07:44 Moon at Descending Node
|
Date AKST Even
(h:m)
Jul 05 22:51 LAST QUARTER MOON
06 08 Earth at Aphelion: 1.01670 AU
09 14:34 Venus 0.9°N of Regulus
10 00:30 Aldebaran 1.1°S of Moon
11 20 Mercury at Greatest Elong: 26.4°E
12 17:48 NEW MOON
12 18:01 Partial Solar Eclipse; mag=0.337
12 23:28 Moon at Perigee: 357432 km
13 17:50 Moon at Ascending Node
14 13:04 Mercury 2.2°S of Moon
15 07:14 Regulus 1.7°S of Moon
15 18:31 Venus 1.6°S of Moon
19 10:52 FIRST QUARTER MOON
20 01 Mercury at Aphelion
20 14:57 Jupiter 4.4°S of Moon
24 21:10 Saturn 2.0°S of Moon
26 21 Mars at Opposition
26 20:44 Moon at Apogee: 406223 km
27 11:20 FULL MOON
27 11:22 Total Lunar Eclipse; mag=1.609
27 13:40 Moon at Descending Node
28 00 Delta-Aquarid Meteor Shower
Aug 04 09:18 LAST QUARTER MOON
06 09:35 Aldebaran 1.1°S of Moon
08 17 Mercury at Inferior Conjunction
10 04:40 Moon at Ascending Node
10 09:05 Moon at Perigee: 358083 km
11 00:46 Partial Solar Eclipse; mag=0.737
11 00:58 NEW MOON
12 16 Perseid Meteor Shower
17 01:38 Jupiter 4.5°S of Moon
17 07 Venus at Greatest Elong: 45.9°E
17 22:49 FIRST QUARTER MOON
21 00:55 Saturn 2.1°S of Moon
23 02:23 Moon at Apogee: 405744 km
23 19:51 Moon at Descending Node
26 02:56 FULL MOON
26 11 Mercury at Greatest Elong: 18.3°W
31 19:45 Venus 1.0°S of Spica
Sep 02 01 Mercury at Perihelion
02 16:34 Aldebaran 1.2°S of Moon
02 17:37 LAST QUARTER MOON
06 13:42 Moon at Ascending Node
07 08 Neptune at Opposition
07 16:21 Moon at Perigee: 361355 km
08 04:13 Regulus 1.7°S of Moon
09 09:01 NEW MOON
13 17:21 Jupiter 4.4°S of Moon
16 04 Mars at Perihelion: 1.38144 AU
16 14:15 FIRST QUARTER MOON
17 07:46 Saturn 2.1°S of Moon
19 15:54 Moon at Apogee: 404875 km
20 00:30 Moon at Descending Node
20 17 Mercury at Superior Conjunction
22 16:54 Autumnal Equinox
24 17:52 FULL MOON
29 22:06 Aldebaran 1.4°S of Moon
Oct 02 00:45 LAST QUARTER MOON
03 18:10 Moon at Ascending Node
05 12:58 Regulus 1.8°S of Moon
05 13:29 Moon at Perigee: 366396 km
08 18:47 NEW MOON
11 12:21 Jupiter 4.1°S of Moon
14 18:01 Saturn 1.8°S of Moon
16 09:02 FIRST QUARTER MOON
17 03:03 Moon at Descending Node
17 10:16 Moon at Apogee: 404227 km
18 04:01 Mars 1.9°S of Moon
21 08 Orionid Meteor Shower
23 16 Uranus at Opposition
24 07:45 FULL MOON
26 05 Venus at Inferior Conjunction
27 04:04 Aldebaran 1.6°S of Moon
28 21 Mercury 3.1°S of Jupiter
30 18:46 Moon at Ascending Node
31 07:40 LAST QUARTER MOON
31 11:05 Moon at Perigee: 370201 km
Nov 01 19:16 Regulus 2.1°S of Moon
05 09 S Taurid Meteor Shower
06 06 Mercury at Greatest Elong: 23.3°E
07 07:02 NEW MOON
08 19:58 Mercury 1.8°N of Antares
11 06:46 Saturn 1.4°S of Moon
12 08 N Taurid Meteor Shower
13 05:04 Moon at Descending Node
14 06:57 Moon at Apogee: 404341 km
14 14:14 Venus 0.2°S of Spica
15 05:54 FIRST QUARTER MOON
15 19:16 Mars 1.0°N of Moon: Occn.
17 14 Leonid Meteor Shower
22 20:39 FULL MOON
23 12:11 Aldebaran 1.7°S of Moon
25 21 Jupiter in Conjunction with Sun
26 03:10 Moon at Perigee: 366623 km
26 20:18 Moon at Ascending Node
27 00 Mercury at Inferior Conjunction
29 00 Mercury at Perihelion
29 00:27 Regulus 2.3°S of Moon
29 15:19 LAST QUARTER MOON
Dec 03 09:42 Venus 3.6°S of Moon
05 12:06 Mercury 1.9°S of Moon
06 22:20 NEW MOON
08 20:30 Saturn 1.1°S of Moon: Occn.
10 08:57 Moon at Descending Node
12 03:25 Moon at Apogee: 405177 km
14 03 Geminid Meteor Shower
14 14:21 Mars 3.6°N of Moon
15 02 Mercury at Greatest Elong: 21.3°W
15 02:49 FIRST QUARTER MOON
20 22:31 Aldebaran 1.7°S of Moon
21 11 Mercury 0.8°N of Jupiter
21 13:22 Winter Solstice
22 08:49 FULL MOON
22 12 Ursid Meteor Shower
24 00:52 Moon at Perigee: 361060 km
24 02:54 Moon at Ascending Node
26 07:06 Regulus 2.5°S of Moon
26 09 Venus at Perihelion
29 00:34 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
Alaska Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Alaska Standard Time (Coordinated Universal Time − 9 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 | |||
| Alaska Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | Jan 01 17:24 | Jan 08 13:25 |
| Jan 16 17:17 | Jan 24 13:20 | Jan 31 04:27 t | Feb 07 06:54 |
| Feb 15 12:05 P | Feb 22 23:09 | Mar 01 15:51 | Mar 09 02:20 |
| Mar 17 04:12 | Mar 24 06:35 | Mar 31 03:37 | Apr 07 22:18 |
| Apr 15 16:57 | Apr 22 12:46 | Apr 29 15:58 | May 07 17:09 |
| May 15 02:48 | May 21 18:49 | May 29 05:20 | Jun 06 09:32 |
| Jun 13 10:43 | Jun 20 01:51 | Jun 27 19:53 | Jul 05 22:51 |
| Jul 12 17:48 P | Jul 19 10:52 | Jul 27 11:20 t | Aug 04 09:18 |
| Aug 11 00:58 P | Aug 17 22:49 | Aug 26 02:56 | Sep 02 17:37 |
| Sep 09 09:01 | Sep 16 14:15 | Sep 24 17:53 | Oct 02 00:45 |
| Oct 08 18:47 | Oct 16 09:02 | Oct 24 07:45 | Oct 31 07:40 |
| Nov 07 07:02 | Nov 15 05:54 | Nov 22 20:39 | Nov 29 15:19 |
| Dec 06 22:20 | Dec 15 02:49 | Dec 22 08:49 | Dec 29 00:34 |
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)