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