2017 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.
| 2017 Sky Event Almanac | ||||||||
| Alaska Standard Time | ||||||||
| January - June | July - December | |||||||
Date AKST Even
(h:m)
Jan 02 00:20 Venus 1.9°S of Moon
02 09:14 Moon at Descending Node
02 21:47 Mars 0.2°S of Moon: Occn.
03 05 Quadrantid Meteor Shower
04 06 Earth at Perihelion: 0.98331 AU
05 10:47 FIRST QUARTER MOON
09 05:07 Aldebaran 0.4°S of Moon
09 21:07 Moon at Perigee: 363242 km
12 02:34 FULL MOON
12 04 Venus at Greatest Elong: 47.1°E
14 19:07 Regulus 0.9°N of Moon
15 01:44 Moon at Ascending Node
18 20:26 Jupiter 2.7°S of Moon
19 01 Mercury at Greatest Elong: 24.1°W
19 13:14 LAST QUARTER MOON
21 15:14 Moon at Apogee: 404913 km
24 01:37 Saturn 3.6°S of Moon
25 15:46 Mercury 3.7°S of Moon
27 15:07 NEW MOON
29 13:21 Moon at Descending Node
31 04:11 Jupiter 3.5°N of Spica
31 05:34 Venus 4.1°N of Moon
31 16:09 Mars 2.3°N of Moon
Feb 03 19:19 FIRST QUARTER MOON
05 12:14 Aldebaran 0.2°S of Moon
06 04:59 Moon at Perigee: 368817 km
07 05 Mercury at Aphelion
10 15:33 FULL MOON
10 15:44 Pen. Lunar Eclipse; mag=0.988
11 05:04 Regulus 0.8°N of Moon
11 10:49 Moon at Ascending Node
15 05:55 Jupiter 2.7°S of Moon
16 22 Jupiter at Aphelion: 5.45652 AU
18 10:33 LAST QUARTER MOON
18 12:14 Moon at Apogee: 404376 km
20 07 Venus at Perihelion
20 14:44 Saturn 3.6°S of Moon
25 21:28 Moon at Descending Node
26 05:53 Annular Solar Eclipse; mag=0.992
26 05:58 NEW MOON
Mar 01 09:58 Mars 4.3°N of Moon
01 17 Neptune in Conjunction with Sun
02 22:24 Moon at Perigee: 369065 km
04 17:38 Aldebaran 0.2°S of Moon
05 02:32 FIRST QUARTER MOON
06 15 Mercury at Superior Conjunction
10 13:20 Regulus 0.8°N of Moon
10 19:17 Moon at Ascending Node
12 05:54 FULL MOON
14 11:04 Jupiter 2.5°S of Moon
18 08:25 Moon at Apogee: 404651 km
20 01:29 Vernal Equinox
20 01:49 Saturn 3.4°S of Moon
20 06:58 LAST QUARTER MOON
23 05 Mercury at Perihelion
25 02 Venus at Inferior Conjunction
25 06:41 Moon at Descending Node
27 17:57 NEW MOON
30 03:39 Moon at Perigee: 363855 km
31 23:50 Aldebaran 0.3°S of Moon
Apr 01 01 Mercury at Greatest Elong: 19.0°E
03 09:39 FIRST QUARTER MOON
06 19:30 Regulus 0.7°N of Moon
07 00:14 Moon at Ascending Node
07 12 Jupiter at Opposition
10 12:20 Jupiter 2.2°S of Moon
10 21:08 FULL MOON
13 21 Uranus in Conjunction with Sun
15 01:05 Moon at Apogee: 405478 km
16 09:39 Saturn 3.2°S of Moon
19 00:57 LAST QUARTER MOON
19 21 Mercury at Inferior Conjunction
20 23:16 Mars 3.4°S of Pleiades
21 13:30 Moon at Descending Node
22 03 Lyrid Meteor Shower
26 03:16 NEW MOON
27 07:18 Moon at Perigee: 359325 km
28 08:19 Aldebaran 0.5°S of Moon
May 02 17:47 FIRST QUARTER MOON
04 00:49 Regulus 0.5°N of Moon
04 01:42 Moon at Ascending Node
04 16 Eta-Aquarid Meteor Shower
07 12:24 Jupiter 2.1°S of Moon
10 12:43 FULL MOON
12 10:51 Moon at Apogee: 406212 km
13 14:07 Saturn 3.1°S of Moon
17 14 Mercury at Greatest Elong: 25.8°W
18 15:33 LAST QUARTER MOON
18 16:30 Moon at Descending Node
22 03:32 Venus 2.4°N of Moon
23 16:20 Mercury 1.6°N of Moon
25 10:44 NEW MOON
25 16:23 Moon at Perigee: 357210 km
31 02:56 Moon at Ascending Node
31 07:08 Regulus 0.3°N of Moon
Jun 01 03:42 FIRST QUARTER MOON
03 02 Venus at Greatest Elong: 45.9°W
03 14:57 Jupiter 2.3°S of Moon
08 13:21 Moon at Apogee: 406402 km
09 04:10 FULL MOON
09 16:25 Saturn 3.1°S of Moon
12 15 Venus at Aphelion
14 17:40 Moon at Descending Node
15 00 Saturn at Opposition
17 02:33 LAST QUARTER MOON
19 04 Mercury at Perihelion
20 12:13 Venus 2.4°N of Moon
20 19:25 Summer Solstice
21 05 Mercury at Superior Conjunction
22 05:23 Aldebaran 0.5°S of Moon
23 01:49 Moon at Perigee: 357938 km
23 17:31 NEW MOON
27 07:26 Moon at Ascending Node
27 15:26 Regulus 0.1°N of Moon
30 15:51 FIRST QUARTER MOON
30 22:28 Jupiter 2.7°S of Moon
|
Date AKST Even
(h:m)
Jul 03 11 Earth at Aphelion: 1.01668 AU
05 19:27 Moon at Apogee: 405934 km
06 18:34 Saturn 3.2°S of Moon
08 19:07 FULL MOON
11 20:17 Moon at Descending Node
13 09:03 Venus 3.1°N of Aldebaran
16 10:26 LAST QUARTER MOON
19 14:37 Aldebaran 0.4°S of Moon
20 02:13 Venus 2.7°N of Moon
21 08:09 Moon at Perigee: 361238 km
23 00:46 NEW MOON
24 15:46 Moon at Ascending Node
24 23:49 Mercury 0.9°S of Moon: Occn.
25 01:14 Regulus 0.0°S of Moon
25 08:03 Mercury 0.8°S of Regulus
26 15 Mars in Conjunction with Sun
27 18 Delta-Aquarid Meteor Shower
28 11:15 Jupiter 3.1°S of Moon
29 19 Mercury at Greatest Elong: 27.2°E
30 06:23 FIRST QUARTER MOON
Aug 02 04 Mercury at Aphelion
02 08:55 Moon at Apogee: 405026 km
02 22:31 Saturn 3.5°S of Moon
07 09:11 FULL MOON
07 09:20 Partial Lunar Eclipse; mag=0.246
08 01:56 Moon at Descending Node
12 10 Perseid Meteor Shower
14 16:15 LAST QUARTER MOON
15 21:39 Aldebaran 0.4°S of Moon
18 04:14 Moon at Perigee: 366129 km
18 19:45 Venus 2.2°N of Moon
21 01:34 Moon at Ascending Node
21 09:26 Total Solar Eclipse; mag=1.031
21 09:30 NEW MOON
25 04:00 Jupiter 3.5°S of Moon
26 12 Mercury at Inferior Conjunction
28 23:13 FIRST QUARTER MOON
30 02:25 Moon at Apogee: 404307 km
30 05:23 Saturn 3.6°S of Moon
Sep 04 09:41 Moon at Descending Node
04 19 Neptune at Opposition
05 22:03 FULL MOON
09 20:30 Mercury 0.7°S of Regulus
10 12:44 Jupiter 2.9°N of Spica
12 01 Mercury at Greatest Elong: 17.9°W
12 03:09 Aldebaran 0.4°S of Moon
12 21:25 LAST QUARTER MOON
13 07:04 Moon at Perigee: 369856 km
15 03 Mercury at Perihelion
16 09 Mercury 0.1°N of Mars
17 09:28 Moon at Ascending Node
17 15:56 Venus 0.5°N of Moon: Occn.
17 19:32 Regulus 0.1°S of Moon
18 10:42 Mars 0.1°S of Moon: Occn.
18 14:22 Mercury 0.0°N of Moon: Occn.
19 12:30 Venus 0.4°N of Regulus
19 20:30 NEW MOON
21 22:51 Jupiter 3.7°S of Moon
22 11:02 Autumnal Equinox
26 15:09 Saturn 3.5°S of Moon
26 21:49 Moon at Apogee: 404342 km
27 17:54 FIRST QUARTER MOON
Oct 01 17:05 Moon at Descending Node
03 00 Venus at Perihelion
05 07 Venus 0.2°N of Mars
05 09:40 FULL MOON
07 13 Mars at Aphelion: 1.66609 AU
08 12 Mercury at Superior Conjunction
08 20:51 Moon at Perigee: 366858 km
09 09:05 Aldebaran 0.6°S of Moon
12 03:25 LAST QUARTER MOON
14 13:10 Moon at Ascending Node
15 01:54 Regulus 0.2°S of Moon
17 01:04 Mars 1.8°S of Moon
17 15:21 Venus 2.0°S of Moon
19 08 Uranus at Opposition
19 10:12 NEW MOON
21 02 Orionid Meteor Shower
24 02:54 Saturn 3.3°S of Moon
24 17:25 Moon at Apogee: 405151 km
26 09 Jupiter in Conjunction with Sun
27 13:22 FIRST QUARTER MOON
28 21:41 Moon at Descending Node
Nov 02 04:58 Venus 3.3°N of Spica
03 20:23 FULL MOON
05 02 S Taurid Meteor Shower
05 15:09 Moon at Perigee: 361438 km
05 17:19 Aldebaran 0.8°S of Moon
10 11:37 LAST QUARTER MOON
10 13:40 Moon at Ascending Node
11 07:07 Regulus 0.4°S of Moon
12 02 N Taurid Meteor Shower
12 08:50 Mercury 2.2°N of Antares
14 15:40 Mars 3.2°S of Moon
16 12:26 Jupiter 4.1°S of Moon
17 08 Leonid Meteor Shower
18 02:42 NEW MOON
20 15:34 Saturn 3.0°S of Moon
21 09:52 Moon at Apogee: 406132 km
23 15 Mercury at Greatest Elong: 22.0°E
24 23:22 Moon at Descending Node
26 08:03 FIRST QUARTER MOON
29 05:30 Mars 2.9°N of Spica
Dec 03 04:00 Aldebaran 0.8°S of Moon
03 06:47 FULL MOON
03 23:42 Moon at Perigee: 357496 km
07 15:39 Moon at Ascending Node
08 13:25 Regulus 0.7°S of Moon
09 22:51 LAST QUARTER MOON
12 03 Mercury at Perihelion
12 17 Mercury at Inferior Conjunction
13 07:27 Mars 4.2°S of Moon
13 21 Geminid Meteor Shower
14 05:26 Jupiter 4.2°S of Moon
17 21:31 NEW MOON
18 16:27 Moon at Apogee: 406605 km
21 07:29 Winter Solstice
21 11 Saturn in Conjunction with Sun
22 01:04 Moon at Descending Node
22 06 Ursid Meteor Shower
26 00:20 FIRST QUARTER MOON
30 15:25 Aldebaran 0.7°S of 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
2017 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.
| 2017 Phases of the Moon | |||
| Alaska Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | Jan 05 10:47 | Jan 12 02:34 | Jan 19 13:14 |
| Jan 27 15:07 | Feb 03 19:19 | Feb 10 15:33 n | Feb 18 10:33 |
| Feb 26 05:58 A | Mar 05 02:32 | Mar 12 05:54 | Mar 20 06:58 |
| Mar 27 17:57 | Apr 03 09:39 | Apr 10 21:08 | Apr 19 00:57 |
| Apr 26 03:16 | May 02 17:47 | May 10 12:43 | May 18 15:33 |
| May 25 10:44 | Jun 01 03:42 | Jun 09 04:10 | Jun 17 02:33 |
| Jun 23 17:31 | Jun 30 15:51 | Jul 08 19:07 | Jul 16 10:26 |
| Jul 23 00:46 | Jul 30 06:23 | Aug 07 09:11 p | Aug 14 16:15 |
| Aug 21 09:30 T | Aug 28 23:13 | Sep 05 22:03 | Sep 12 21:25 |
| Sep 19 20:30 | Sep 27 17:54 | Oct 05 09:40 | Oct 12 03:25 |
| Oct 19 10:12 | Oct 27 13:22 | Nov 03 20:23 | Nov 10 11:37 |
| Nov 18 02:42 | Nov 26 08:03 | Dec 03 06:47 | Dec 09 22:51 |
| Dec 17 21:31 | Dec 26 00:20 | - | - |
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)