2017 Sky Event Almanac
Argentina Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Argentina Time (Coordinated Universal Time − 3 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 | ||||||||
| Argentina Time | ||||||||
| January - June | July - December | |||||||
Date ART Event
(h:m)
Jan 02 06:20 Venus 1.9°S of Moon
02 15:14 Moon at Descending Node
03 03:47 Mars 0.2°S of Moon: Occn.
03 11 Quadrantid Meteor Shower
04 12 Earth at Perihelion: 0.98331 AU
05 16:47 FIRST QUARTER MOON
09 11:07 Aldebaran 0.4°S of Moon
10 03:07 Moon at Perigee: 363242 km
12 08:34 FULL MOON
12 10 Venus at Greatest Elong: 47.1°E
15 01:07 Regulus 0.9°N of Moon
15 07:44 Moon at Ascending Node
19 02:26 Jupiter 2.7°S of Moon
19 07 Mercury at Greatest Elong: 24.1°W
19 19:14 LAST QUARTER MOON
21 21:14 Moon at Apogee: 404913 km
24 07:37 Saturn 3.6°S of Moon
25 21:46 Mercury 3.7°S of Moon
27 21:07 NEW MOON
29 19:21 Moon at Descending Node
31 10:11 Jupiter 3.5°N of Spica
31 11:34 Venus 4.1°N of Moon
31 22:09 Mars 2.3°N of Moon
Feb 04 01:19 FIRST QUARTER MOON
05 18:14 Aldebaran 0.2°S of Moon
06 10:59 Moon at Perigee: 368817 km
07 11 Mercury at Aphelion
10 21:33 FULL MOON
10 21:44 Pen. Lunar Eclipse; mag=0.988
11 11:04 Regulus 0.8°N of Moon
11 16:49 Moon at Ascending Node
15 11:55 Jupiter 2.7°S of Moon
17 04 Jupiter at Aphelion: 5.45652 AU
18 16:33 LAST QUARTER MOON
18 18:14 Moon at Apogee: 404376 km
20 13 Venus at Perihelion
20 20:44 Saturn 3.6°S of Moon
26 03:28 Moon at Descending Node
26 11:53 Annular Solar Eclipse; mag=0.992
26 11:58 NEW MOON
Mar 01 15:58 Mars 4.3°N of Moon
01 23 Neptune in Conjunction with Sun
03 04:24 Moon at Perigee: 369065 km
04 23:38 Aldebaran 0.2°S of Moon
05 08:32 FIRST QUARTER MOON
06 21 Mercury at Superior Conjunction
10 19:20 Regulus 0.8°N of Moon
11 01:17 Moon at Ascending Node
12 11:54 FULL MOON
14 17:04 Jupiter 2.5°S of Moon
18 14:25 Moon at Apogee: 404651 km
20 07:29 Vernal Equinox
20 07:49 Saturn 3.4°S of Moon
20 12:58 LAST QUARTER MOON
23 11 Mercury at Perihelion
25 08 Venus at Inferior Conjunction
25 12:41 Moon at Descending Node
27 23:57 NEW MOON
30 09:39 Moon at Perigee: 363855 km
Apr 01 05:50 Aldebaran 0.3°S of Moon
01 07 Mercury at Greatest Elong: 19.0°E
03 15:39 FIRST QUARTER MOON
07 01:30 Regulus 0.7°N of Moon
07 06:14 Moon at Ascending Node
07 18 Jupiter at Opposition
10 18:20 Jupiter 2.2°S of Moon
11 03:08 FULL MOON
14 03 Uranus in Conjunction with Sun
15 07:05 Moon at Apogee: 405478 km
16 15:39 Saturn 3.2°S of Moon
19 06:57 LAST QUARTER MOON
20 03 Mercury at Inferior Conjunction
21 05:16 Mars 3.4°S of Pleiades
21 19:30 Moon at Descending Node
22 09 Lyrid Meteor Shower
26 09:16 NEW MOON
27 13:18 Moon at Perigee: 359325 km
28 14:19 Aldebaran 0.5°S of Moon
May 02 23:47 FIRST QUARTER MOON
04 06:49 Regulus 0.5°N of Moon
04 07:42 Moon at Ascending Node
04 22 Eta-Aquarid Meteor Shower
07 18:24 Jupiter 2.1°S of Moon
10 18:43 FULL MOON
12 16:51 Moon at Apogee: 406212 km
13 20:07 Saturn 3.1°S of Moon
17 20 Mercury at Greatest Elong: 25.8°W
18 21:33 LAST QUARTER MOON
18 22:30 Moon at Descending Node
22 09:32 Venus 2.4°N of Moon
23 22:20 Mercury 1.6°N of Moon
25 16:44 NEW MOON
25 22:23 Moon at Perigee: 357210 km
31 08:56 Moon at Ascending Node
31 13:08 Regulus 0.3°N of Moon
Jun 01 09:42 FIRST QUARTER MOON
03 08 Venus at Greatest Elong: 45.9°W
03 20:57 Jupiter 2.3°S of Moon
08 19:21 Moon at Apogee: 406402 km
09 10:10 FULL MOON
09 22:25 Saturn 3.1°S of Moon
12 21 Venus at Aphelion
14 23:40 Moon at Descending Node
15 06 Saturn at Opposition
17 08:33 LAST QUARTER MOON
19 10 Mercury at Perihelion
20 18:13 Venus 2.4°N of Moon
21 01:25 Summer Solstice
21 11 Mercury at Superior Conjunction
22 11:23 Aldebaran 0.5°S of Moon
23 07:49 Moon at Perigee: 357938 km
23 23:31 NEW MOON
27 13:26 Moon at Ascending Node
27 21:26 Regulus 0.1°N of Moon
30 21:51 FIRST QUARTER MOON
|
Date ART Event
(h:m)
Jul 01 04:28 Jupiter 2.7°S of Moon
03 17 Earth at Aphelion: 1.01668 AU
06 01:27 Moon at Apogee: 405934 km
07 00:34 Saturn 3.2°S of Moon
09 01:07 FULL MOON
12 02:17 Moon at Descending Node
13 15:03 Venus 3.1°N of Aldebaran
16 16:26 LAST QUARTER MOON
19 20:37 Aldebaran 0.4°S of Moon
20 08:13 Venus 2.7°N of Moon
21 14:09 Moon at Perigee: 361238 km
23 06:46 NEW MOON
24 21:46 Moon at Ascending Node
25 05:49 Mercury 0.9°S of Moon: Occn.
25 07:14 Regulus 0.0°S of Moon
25 14:03 Mercury 0.8°S of Regulus
26 21 Mars in Conjunction with Sun
28 00 Delta-Aquarid Meteor Shower
28 17:15 Jupiter 3.1°S of Moon
30 01 Mercury at Greatest Elong: 27.2°E
30 12:23 FIRST QUARTER MOON
Aug 02 10 Mercury at Aphelion
02 14:55 Moon at Apogee: 405026 km
03 04:31 Saturn 3.5°S of Moon
07 15:11 FULL MOON
07 15:20 Partial Lunar Eclipse; mag=0.246
08 07:56 Moon at Descending Node
12 16 Perseid Meteor Shower
14 22:15 LAST QUARTER MOON
16 03:39 Aldebaran 0.4°S of Moon
18 10:14 Moon at Perigee: 366129 km
19 01:45 Venus 2.2°N of Moon
21 07:34 Moon at Ascending Node
21 15:26 Total Solar Eclipse; mag=1.031
21 15:30 NEW MOON
25 10:00 Jupiter 3.5°S of Moon
26 18 Mercury at Inferior Conjunction
29 05:13 FIRST QUARTER MOON
30 08:25 Moon at Apogee: 404307 km
30 11:23 Saturn 3.6°S of Moon
Sep 04 15:41 Moon at Descending Node
05 01 Neptune at Opposition
06 04:03 FULL MOON
10 02:30 Mercury 0.7°S of Regulus
10 18:44 Jupiter 2.9°N of Spica
12 07 Mercury at Greatest Elong: 17.9°W
12 09:09 Aldebaran 0.4°S of Moon
13 03:25 LAST QUARTER MOON
13 13:04 Moon at Perigee: 369856 km
15 09 Mercury at Perihelion
16 15 Mercury 0.1°N of Mars
17 15:28 Moon at Ascending Node
17 21:56 Venus 0.5°N of Moon: Occn.
18 01:32 Regulus 0.1°S of Moon
18 16:42 Mars 0.1°S of Moon: Occn.
18 20:22 Mercury 0.0°N of Moon: Occn.
19 18:30 Venus 0.4°N of Regulus
20 02:30 NEW MOON
22 04:51 Jupiter 3.7°S of Moon
22 17:02 Autumnal Equinox
26 21:09 Saturn 3.5°S of Moon
27 03:49 Moon at Apogee: 404342 km
27 23:54 FIRST QUARTER MOON
Oct 01 23:05 Moon at Descending Node
03 06 Venus at Perihelion
05 13 Venus 0.2°N of Mars
05 15:40 FULL MOON
07 19 Mars at Aphelion: 1.66609 AU
08 18 Mercury at Superior Conjunction
09 02:51 Moon at Perigee: 366858 km
09 15:05 Aldebaran 0.6°S of Moon
12 09:25 LAST QUARTER MOON
14 19:10 Moon at Ascending Node
15 07:54 Regulus 0.2°S of Moon
17 07:04 Mars 1.8°S of Moon
17 21:21 Venus 2.0°S of Moon
19 14 Uranus at Opposition
19 16:12 NEW MOON
21 08 Orionid Meteor Shower
24 08:54 Saturn 3.3°S of Moon
24 23:25 Moon at Apogee: 405151 km
26 15 Jupiter in Conjunction with Sun
27 19:22 FIRST QUARTER MOON
29 03:41 Moon at Descending Node
Nov 02 10:58 Venus 3.3°N of Spica
04 02:23 FULL MOON
05 08 S Taurid Meteor Shower
05 21:09 Moon at Perigee: 361438 km
05 23:19 Aldebaran 0.8°S of Moon
10 17:37 LAST QUARTER MOON
10 19:40 Moon at Ascending Node
11 13:07 Regulus 0.4°S of Moon
12 08 N Taurid Meteor Shower
12 14:50 Mercury 2.2°N of Antares
14 21:40 Mars 3.2°S of Moon
16 18:26 Jupiter 4.1°S of Moon
17 14 Leonid Meteor Shower
18 08:42 NEW MOON
20 21:34 Saturn 3.0°S of Moon
21 15:52 Moon at Apogee: 406132 km
23 21 Mercury at Greatest Elong: 22.0°E
25 05:22 Moon at Descending Node
26 14:03 FIRST QUARTER MOON
29 11:30 Mars 2.9°N of Spica
Dec 03 10:00 Aldebaran 0.8°S of Moon
03 12:47 FULL MOON
04 05:42 Moon at Perigee: 357496 km
07 21:39 Moon at Ascending Node
08 19:25 Regulus 0.7°S of Moon
10 04:51 LAST QUARTER MOON
12 09 Mercury at Perihelion
12 23 Mercury at Inferior Conjunction
13 13:27 Mars 4.2°S of Moon
14 03 Geminid Meteor Shower
14 11:26 Jupiter 4.2°S of Moon
18 03:31 NEW MOON
18 22:27 Moon at Apogee: 406605 km
21 13:29 Winter Solstice
21 17 Saturn in Conjunction with Sun
22 07:04 Moon at Descending Node
22 12 Ursid Meteor Shower
26 06:20 FIRST QUARTER MOON
30 21:25 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
Argentina Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Argentina Time (Coordinated Universal Time − 3 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 | |||
| Argentina Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | Jan 05 16:47 | Jan 12 08:34 | Jan 19 19:14 |
| Jan 27 21:07 | Feb 04 01:19 | Feb 10 21:33 n | Feb 18 16:33 |
| Feb 26 11:58 A | Mar 05 08:32 | Mar 12 11:54 | Mar 20 12:58 |
| Mar 27 23:57 | Apr 03 15:39 | Apr 11 03:08 | Apr 19 06:57 |
| Apr 26 09:16 | May 02 23:47 | May 10 18:43 | May 18 21:33 |
| May 25 16:44 | Jun 01 09:42 | Jun 09 10:10 | Jun 17 08:33 |
| Jun 23 23:31 | Jun 30 21:51 | Jul 09 01:07 | Jul 16 16:26 |
| Jul 23 06:46 | Jul 30 12:23 | Aug 07 15:11 p | Aug 14 22:15 |
| Aug 21 15:30 T | Aug 29 05:13 | Sep 06 04:03 | Sep 13 03:25 |
| Sep 20 02:30 | Sep 27 23:54 | Oct 05 15:40 | Oct 12 09:25 |
| Oct 19 16:12 | Oct 27 19:22 | Nov 04 02:23 | Nov 10 17:37 |
| Nov 18 08:42 | Nov 26 14:03 | Dec 03 12:47 | Dec 10 04:51 |
| Dec 18 03:31 | Dec 26 06:20 | - | - |
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)