2011 Sky Event Almanac
Cape Verde Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Cape Verde Time (Coordinated Universal Time − 1 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.
| 2011 Sky Event Almanac | ||||||||
| Cape Verde Time | ||||||||
| January - June | July - December | |||||||
Date CVT Event
(h:m)
Jan 01 17:07 Antares 2.5°S of Moon
02 13:32 Mercury 3.8°N of Moon
03 11:48 Moon at Ascending Node
03 18 Earth at Perihelion: 0.98334 AU
04 00 Quadrantid Meteor Shower
04 07:51 Partial Solar Eclipse; mag=0.858
04 08:03 NEW MOON
08 14 Venus at Greatest Elong: 47.0°W
09 13 Mercury at Greatest Elong: 23.3°W
10 04:38 Moon at Apogee: 404976 km
12 10:31 FIRST QUARTER MOON
15 11:39 Pleiades 1.3°N of Moon
17 23:06 Moon at Descending Node
19 20:21 FULL MOON
21 23:10 Moon at Perigee: 362793 km
25 16:38 Spica 3.0°N of Moon
26 11:57 LAST QUARTER MOON
28 22:53 Antares 2.6°S of Moon
30 02:36 Venus 3.5°N of Moon
30 17:29 Moon at Ascending Node
31 08 Mercury at Aphelion
Feb 01 17:14 Mercury 3.6°S of Moon
03 01:31 NEW MOON
04 16 Mars in Conjunction with Sun
06 22:13 Moon at Apogee: 405924 km
11 06:18 FIRST QUARTER MOON
11 20:32 Pleiades 1.4°N of Moon
14 07:14 Moon at Descending Node
17 08 Neptune in Conjunction with Sun
18 07:36 FULL MOON
19 06:27 Moon at Perigee: 358247 km
22 00:02 Spica 2.8°N of Moon
24 22:26 LAST QUARTER MOON
25 04:26 Antares 2.8°S of Moon
25 07 Mercury at Superior Conjunction
26 19:19 Moon at Ascending Node
Mar 01 02:40 Venus 1.6°S of Moon
04 19:46 NEW MOON
06 06:50 Moon at Apogee: 406584 km
09 13 Mars at Perihelion: 1.38138 AU
11 03:35 Pleiades 1.7°N of Moon
12 22:45 FIRST QUARTER MOON
13 10:55 Moon at Descending Node
15 19 Mercury 2.0°N of Jupiter
16 07 Mercury at Perihelion
17 16 Jupiter at Perihelion: 4.94839 AU
19 17:10 FULL MOON
19 18:09 Moon at Perigee: 356578 km
20 22:21 Vernal Equinox
21 10:00 Spica 2.6°N of Moon
21 11 Uranus in Conjunction with Sun
23 00 Mercury at Greatest Elong: 18.6°E
24 11:48 Antares 3.0°S of Moon
25 20:09 Moon at Ascending Node
26 11:07 LAST QUARTER MOON
Apr 02 08:00 Moon at Apogee: 406656 km
03 13:32 NEW MOON
03 22 Saturn at Opposition
06 14 Jupiter in Conjunction with Sun
07 09:19 Pleiades 1.9°N of Moon
09 11:48 Moon at Descending Node
09 18 Mercury at Inferior Conjunction
11 11:05 FIRST QUARTER MOON
17 04:59 Moon at Perigee: 358088 km
17 21:04 Spica 2.5°N of Moon
18 01:44 FULL MOON
18 23 Venus at Aphelion
19 17 Mercury 0.6°N of Mars
20 21:21 Antares 3.2°S of Moon
22 00:05 Moon at Ascending Node
22 22 Lyrid Meteor Shower
25 01:47 LAST QUARTER MOON
29 17:02 Moon at Apogee: 406043 km
May 01 03 Mars 0.4°N of Jupiter
03 05:51 NEW MOON
04 15:05 Pleiades 2.0°N of Moon
05 11 Eta-Aquarid Meteor Shower
06 13:54 Moon at Descending Node
07 18 Mercury at Greatest Elong: 26.6°W
08 04 Mercury 1.4°S of Venus
10 19:33 FIRST QUARTER MOON
11 14 Venus 0.6°S of Jupiter
11 19 Mercury 2.1°S of Jupiter
15 07:08 Spica 2.6°N of Moon
15 10:18 Moon at Perigee: 362133 km
17 10:09 FULL MOON
18 06 Mercury 1.4°S of Venus
18 07:46 Antares 3.3°S of Moon
19 08:03 Moon at Ascending Node
21 07 Mercury 2.1°S of Mars
23 08 Venus 1.0°S of Mars
24 17:52 LAST QUARTER MOON
27 08:58 Moon at Apogee: 405006 km
30 19:04 Mars 3.8°S of Moon
31 03:00 Venus 4.4°S of Moon
Jun 01 20:03 NEW MOON
01 20:16 Partial Solar Eclipse; mag=0.601
02 19:21 Moon at Descending Node
09 01:11 FIRST QUARTER MOON
11 14:57 Spica 2.6°N of Moon
12 00:42 Moon at Perigee: 367188 km
12 07 Mercury at Perihelion
12 22 Mercury at Superior Conjunction
14 17:17 Antares 3.3°S of Moon
15 17:35 Moon at Ascending Node
15 19:13 Total Lunar Eclipse; mag=1.700
15 19:13 FULL MOON
17 11:15 Venus 4.6°N of Aldebaran
21 00:24 Mars 4.2°S of Pleiades
21 16:16 Summer Solstice
23 10:48 LAST QUARTER MOON
24 03:13 Moon at Apogee: 404275 km
28 05:52 Pleiades 2.0°N of Moon
28 06:40 Mercury 4.7°S of Pollux
28 17:59 Mars 1.7°S of Moon
30 03:14 Moon at Descending Node
|
Date CVT Event
(h:m)
Jul 01 07:38 Partial Solar Eclipse; mag=0.097
01 07:54 NEW MOON
04 14 Earth at Aphelion: 1.01674 AU
07 13:04 Moon at Perigee: 369566 km
08 05:29 FIRST QUARTER MOON
08 20:44 Spica 2.6°N of Moon
12 00:48 Antares 3.3°S of Moon
13 01:27 Moon at Ascending Node
15 05:40 FULL MOON
20 04 Mercury at Greatest Elong: 26.8°E
21 21:46 Moon at Apogee: 404358 km
23 04:02 LAST QUARTER MOON
25 14:28 Pleiades 2.1°N of Moon
26 06 Mercury at Aphelion
26 11:51 Mercury 2.1°S of Regulus
27 11:03 Moon at Descending Node
27 15:52 Mars 0.5°N of Moon: Occn.
28 13 Delta-Aquarid Meteor Shower
30 17:40 NEW MOON
Aug 01 10:20 Mercury 1.5°N of Moon
02 19:59 Moon at Perigee: 365756 km
05 02:08 Spica 2.4°N of Moon
06 10:08 FIRST QUARTER MOON
08 06:32 Antares 3.5°S of Moon
09 05:35 Moon at Ascending Node
09 07 Venus at Perihelion
13 05 Perseid Meteor Shower
13 17:58 FULL MOON
16 11 Venus at Superior Conjunction
17 00 Mercury at Inferior Conjunction
18 15:23 Moon at Apogee: 405161 km
21 20:55 LAST QUARTER MOON
21 22:40 Pleiades 2.3°N of Moon
22 21 Neptune at Opposition
23 16:23 Moon at Descending Node
25 12:36 Mars 2.7°N of Moon
28 00:07 Mercury 2.6°N of Moon
29 02:04 NEW MOON
30 16:35 Moon at Perigee: 360858 km
Sep 01 09:06 Spica 2.2°N of Moon
03 05 Mercury at Greatest Elong: 18.1°W
04 12:00 Antares 3.7°S of Moon
04 16:39 FIRST QUARTER MOON
05 06:36 Moon at Ascending Node
08 06 Mercury at Perihelion
09 01:18 Mercury 0.6°N of Regulus
12 08:27 FULL MOON
15 05:23 Moon at Apogee: 406068 km
18 05:46 Pleiades 2.5°N of Moon
19 18:38 Moon at Descending Node
20 12:39 LAST QUARTER MOON
23 07:23 Mars 4.8°N of Moon
23 08:05 Autumnal Equinox
25 23 Uranus at Opposition
27 10:09 NEW MOON
28 00:01 Moon at Perigee: 357556 km
28 18:34 Spica 2.1°N of Moon
28 19 Mercury at Superior Conjunction
Oct 01 19:04 Antares 3.9°S of Moon
02 08:09 Moon at Ascending Node
04 02:15 FIRST QUARTER MOON
12 01:06 FULL MOON
12 10:43 Moon at Apogee: 406435 km
13 20 Saturn in Conjunction with Sun
15 11:49 Pleiades 2.7°N of Moon
16 20:01 Moon at Descending Node
20 02:30 LAST QUARTER MOON
21 21 Orionid Meteor Shower
26 11:26 Moon at Perigee: 357051 km
26 18:56 NEW MOON
28 01:14 Mercury 0.2°N of Moon: Occn.
28 04:11 Venus 1.8°N of Moon
29 00 Jupiter at Opposition
29 04:37 Antares 4.1°S of Moon
29 13:59 Moon at Ascending Node
Nov 01 19 Mercury 2.0°S of Venus
02 15:38 FIRST QUARTER MOON
05 21 S Taurid Meteor Shower
08 12:20 Moon at Apogee: 406177 km
10 06:51 Venus 3.8°N of Antares
10 07:27 Mercury 1.9°N of Antares
10 17:21 Mars 1.3°N of Regulus
10 19:16 FULL MOON
11 10:32 Saturn 4.0°N of Spica
11 17:43 Pleiades 2.8°N of Moon
12 21 N Taurid Meteor Shower
12 23:35 Moon at Descending Node
13 07 Mercury 2.0°S of Venus
14 08 Mercury at Greatest Elong: 22.7°E
18 03 Leonid Meteor Shower
18 14:09 LAST QUARTER MOON
22 16:21 Spica 2.1°N of Moon
23 22:24 Moon at Perigee: 359692 km
25 05:10 NEW MOON
25 05:20 Partial Solar Eclipse; mag=0.905
26 00:02 Moon at Ascending Node
26 08:48 Mercury 1.7°S of Moon
27 03:29 Venus 2.8°S of Moon
Dec 02 08:52 FIRST QUARTER MOON
04 08 Mercury at Inferior Conjunction
05 05 Mercury at Perihelion
06 00:13 Moon at Apogee: 405414 km
09 00:26 Pleiades 2.8°N of Moon
10 06:04 Moon at Descending Node
10 13:32 Total Lunar Eclipse; mag=1.106
10 13:36 FULL MOON
14 16 Geminid Meteor Shower
17 23:48 LAST QUARTER MOON
20 00:37 Spica 2.1°N of Moon
22 01:56 Moon at Perigee: 364801 km
22 04:30 Winter Solstice
23 01 Ursid Meteor Shower
23 02 Mercury at Greatest Elong: 21.8°W
23 02:05 Antares 4.1°S of Moon
23 02:50 Mercury 2.6°N of Moon
23 10:36 Moon at Ascending Node
24 17:06 NEW 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
2011 Phases of the Moon
Cape Verde Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Cape Verde Time (Coordinated Universal Time − 1 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.
| 2011 Phases of the Moon | |||
| Cape Verde Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| Jan 04 08:03 P | Jan 12 10:31 | Jan 19 20:21 | Jan 26 11:57 |
| Feb 03 01:31 | Feb 11 06:18 | Feb 18 07:36 | Feb 24 22:26 |
| Mar 04 19:46 | Mar 12 22:45 | Mar 19 17:10 | Mar 26 11:07 |
| Apr 03 13:32 | Apr 11 11:05 | Apr 18 01:44 | Apr 25 01:47 |
| May 03 05:51 | May 10 19:33 | May 17 10:09 | May 24 17:52 |
| Jun 01 20:03 P | Jun 09 01:11 | Jun 15 19:13 t | Jun 23 10:48 |
| Jul 01 07:54 P | Jul 08 05:29 | Jul 15 05:40 | Jul 23 04:02 |
| Jul 30 17:40 | Aug 06 10:08 | Aug 13 17:58 | Aug 21 20:55 |
| Aug 29 02:04 | Sep 04 16:39 | Sep 12 08:27 | Sep 20 12:39 |
| Sep 27 10:09 | Oct 04 02:15 | Oct 12 01:06 | Oct 20 02:30 |
| Oct 26 18:56 | Nov 02 15:38 | Nov 10 19:16 | Nov 18 14:09 |
| Nov 25 05:10 P | Dec 02 08:52 | Dec 10 13:36 t | Dec 17 23:48 |
| Dec 24 17:06 | - | - | - |
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)