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 

    

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

        Time Zones Abbreviations
        • 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)

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

book

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

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Astronomy Tools (Astronomy Tools)