2004 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.

2004 Sky Event Almanac
Argentina Time
January - June July - December
Date     ART   Event
        (h:m)

Jan 02  17:11  Moon at Ascending Node 
    03  13:17  Pleiades 3.3°N of Moon
    03  17:19  Moon at Apogee: 405707 km
    04  03     Quadrantid Meteor Shower
    04  15     Earth at Perihelion: 0.98326 AU
    07  12:40  FULL MOON 
    08  02:13  Pollux 2.1°N of Moon
    12  07:46  Jupiter 3.4°S of Moon
    14  21:53  Spica 4.6°S of Moon
    15  01:46  LAST QUARTER MOON 
    16  18:08  Moon at Descending Node 
    17  06     Mercury at Greatest Elong: 23.9°W
    18  05:43  Antares 2.8°S of Moon
    19  16:25  Moon at Perigee: 362768 km
    20  00:17  Mercury 4.7°N of Moon
    21  18:05  NEW MOON 
    24  13:09  Venus 3.6°N of Moon
    27  23:59  Mars 2.6°N of Moon
    29  03:03  FIRST QUARTER MOON 
    29  19:07  Moon at Ascending Node 
    30  20:43  Pleiades 3.1°N of Moon
    31  11:00  Moon at Apogee: 404807 km

Feb 02  06     Neptune in Conjunction with Sun 
    03  00:59  Saturn 4.5°S of Moon
    04  09:30  Pollux 2.1°N of Moon
    06  03     Mercury at Aphelion 
    06  05:47  FULL MOON 
    07  02:41  Regulus 4.7°S of Moon
    08  10:32  Jupiter 3.2°S of Moon
    11  03:26  Spica 4.3°S of Moon
    12  18:44  Moon at Descending Node 
    13  10:40  LAST QUARTER MOON 
    14  12:30  Antares 2.5°S of Moon
    16  04:34  Moon at Perigee: 368320 km
    20  06:18  NEW MOON 
    21  23     Uranus in Conjunction with Sun 
    23  16:29  Venus 3.0°N of Moon
    25  21:15  Moon at Ascending Node 
    25  22:30  Mars 0.9°N of Moon: Occn.
    27  04:55  Pleiades 2.8°N of Moon
    28  00:24  FIRST QUARTER MOON 
    28  07:45  Moon at Apogee: 404259 km

Mar 02  17:52  Pollux 1.9°N of Moon
    03  22     Mercury at Superior Conjunction 
    04  02     Jupiter at Opposition 
    05  10:57  Regulus 4.7°S of Moon
    06  12:29  Jupiter 3.2°S of Moon
    06  20:14  FULL MOON 
    09  09:57  Spica 4.1°S of Moon
    10  20:05  Moon at Descending Node 
    12  00:37  Moon at Perigee: 369511 km
    12  17:54  Antares 2.3°S of Moon
    13  18:01  LAST QUARTER MOON 
    20  03:49  Vernal Equinox 
    20  19:41  NEW MOON 
    21  01:47  Mars 2.9°S of Pleiades
    21  03     Mercury at Perihelion 
    21  20     Venus at Perihelion 
    22  01:50  Mercury 3.6°N of Moon
    24  01:55  Moon at Ascending Node 
    24  18:13  Venus 2.2°N of Moon
    25  13:13  Pleiades 2.6°N of Moon
    25  20:56  Mars 0.8°S of Moon: Occn.
    27  04:02  Moon at Apogee: 404520 km
    28  20:48  FIRST QUARTER MOON 
    29  09     Mercury at Greatest Elong: 18.9°E
    29  12     Venus at Greatest Elong: 46.0°E
    30  02:28  Pollux 1.8°N of Moon

Apr 02  16:14  Jupiter 3.5°S of Moon
    03  10:00  Venus 0.6°S of Pleiades
    05  08:03  FULL MOON 
    05  18:40  Spica 4.1°S of Moon
    07  02:05  Moon at Descending Node 
    07  23:28  Moon at Perigee: 364548 km
    09  00:24  Antares 2.1°S of Moon
    12  00:46  LAST QUARTER MOON 
    16  22     Mercury at Inferior Conjunction 
    19  10:21  NEW MOON 
    19  10:34  Partial Solar Eclipse; mag=0.737
    20  08:40  Moon at Ascending Node 
    21  20:50  Pleiades 2.5°N of Moon
    22  01     Lyrid Meteor Shower
    23  07:13  Venus 1.5°N of Moon
    23  17:48  Mars 2.2°S of Moon
    23  21:26  Moon at Apogee: 405403 km
    26  10:22  Pollux 1.7°N of Moon
    27  14:32  FIRST QUARTER MOON 
    29  22:55  Jupiter 3.7°S of Moon

May 03  04:59  Spica 4.1°S of Moon
    04  12:00  Moon at Descending Node 
    04  14     Eta-Aquarid Meteor Shower
    04  17:30  Total Lunar Eclipse; mag=1.304
    04  17:33  FULL MOON 
    06  01:29  Moon at Perigee: 359812 km
    06  09:14  Antares 2.1°S of Moon
    11  08:04  LAST QUARTER MOON 
    14  18     Mercury at Greatest Elong: 26.0°W
    16  20:06  Mercury 2.6°S of Moon
    17  15:17  Moon at Ascending Node 
    19  01:52  NEW MOON 
    21  09:02  Moon at Apogee: 406262 km
    21  09:13  Venus 0.3°S of Moon: Occn.
    22  12:44  Mars 3.2°S of Moon
    23  17:10  Pollux 1.7°N of Moon
    25  01     Mars 1.6°N of Saturn
    27  04:57  FIRST QUARTER MOON 
    27  08:27  Jupiter 3.7°S of Moon
    30  15:16  Spica 4.0°S of Moon
    31  22:20  Moon at Descending Node 

Jun 02  19:49  Antares 2.1°S of Moon
    03  01:20  FULL MOON 
    03  10:10  Moon at Perigee: 357249 km
    08  06     Venus at Inferior Conjunction 
    09  17:02  LAST QUARTER MOON 
    13  19:49  Moon at Ascending Node 
    15  09:24  Pleiades 2.5°N of Moon
    17  02     Mercury at Perihelion 
    17  13:02  Moon at Apogee: 406575 km
    17  17:27  NEW MOON 
    18  18     Mercury at Superior Conjunction 
    19  23:09  Pollux 1.8°N of Moon
    20  06:09  Mars 3.8°S of Moon
    20  21:57  Summer Solstice 
    23  20:21  Jupiter 3.5°S of Moon
    25  16:08  FIRST QUARTER MOON 
    27  00:03  Spica 3.8°S of Moon
    28  05:37  Moon at Descending Node 
    30  06:28  Antares 2.1°S of Moon

Date     ART   Event
        (h:m)

Jul 01  20:00  Moon at Perigee: 357450 km
    02  08:09  FULL MOON 
    04  22:04  Venus 1.1°N of Aldebaran
    05  07     Earth at Aphelion: 1.01670 AU
    08  14     Saturn in Conjunction with Sun 
    09  04:34  LAST QUARTER MOON 
    10  21     Mercury 0.2°N of Mars
    10  21:59  Moon at Ascending Node 
    12  04     Venus at Aphelion 
    12  15:28  Pleiades 2.4°N of Moon
    14  18:08  Moon at Apogee: 406192 km
    17  08:24  NEW MOON 
    18  22:56  Mars 4.0°S of Moon
    20  01:20  Regulus 4.5°S of Moon
    21  10:16  Jupiter 3.1°S of Moon
    24  06:48  Spica 3.6°S of Moon
    25  00:37  FIRST QUARTER MOON 
    25  01:36  Mercury 1.1°S of Regulus
    25  08:29  Moon at Descending Node 
    27  00     Mercury at Greatest Elong: 27.1°E
    27  15:33  Antares 1.9°S of Moon
    27  16     Delta-Aquarid Meteor Shower
    30  03:25  Moon at Perigee: 360326 km
    31  02     Mercury at Aphelion 
    31  15:05  FULL MOON 

Aug 05  23     Neptune at Opposition 
    06  23:41  Moon at Ascending Node 
    07  19:01  LAST QUARTER MOON 
    07  21     Mars at Aphelion:  1.66614 AU
    08  22:23  Pleiades 2.1°N of Moon
    11  06:34  Moon at Apogee: 405291 km
    12  08     Perseid Meteor Shower
    13  11:41  Pollux 1.8°N of Moon
    15  22:24  NEW MOON 
    17  15     Venus at Greatest Elong: 45.8°W
    18  02:15  Jupiter 2.6°S of Moon
    20  12:23  Spica 3.3°S of Moon
    21  09:11  Moon at Descending Node 
    23  07:12  FIRST QUARTER MOON 
    23  18     Mercury at Inferior Conjunction 
    23  22:23  Antares 1.7°S of Moon
    27  02:37  Moon at Perigee: 365106 km
    27  16     Uranus at Opposition 
    29  23:22  FULL MOON 
    31  17     Venus 1.9°S of Saturn

Sep 03  03:34  Moon at Ascending Node 
    05  06:22  Pleiades 1.9°N of Moon
    06  12:11  LAST QUARTER MOON 
    07  23:42  Moon at Apogee: 404464 km
    09  11     Mercury at Greatest Elong: 18.0°W
    09  19:12  Pollux 1.6°N of Moon
    10  00:57  Mercury 0.1°S of Regulus
    12  14:58  Regulus 4.5°S of Moon
    12  21:56  Mercury 3.8°S of Moon
    13  01     Mercury at Perihelion 
    14  11:29  NEW MOON 
    15  09     Mars in Conjunction with Sun 
    16  18:30  Spica 3.2°S of Moon
    17  11:51  Moon at Descending Node 
    20  03:50  Antares 1.5°S of Moon
    21  12:54  FIRST QUARTER MOON 
    21  21     Jupiter in Conjunction with Sun 
    22  13:30  Autumnal Equinox 
    22  18:12  Moon at Perigee: 369600 km
    28  10:09  FULL MOON 
    30  10:30  Moon at Ascending Node 

Oct 02  14:57  Pleiades 1.7°N of Moon
    03  10:47  Venus 0.1°S of Regulus
    05  15     Mercury at Superior Conjunction 
    05  19:10  Moon at Apogee: 404328 km
    06  07:12  LAST QUARTER MOON 
    07  03:21  Pollux 1.5°N of Moon
    09  23:37  Regulus 4.6°S of Moon
    10  15:52  Venus 3.9°S of Moon
    12  16:08  Jupiter 1.6°S of Moon
    13  23:48  NEW MOON 
    13  23:59  Partial Solar Eclipse; mag=0.928
    14  18:47  Moon at Descending Node 
    17  09:57  Antares 1.4°S of Moon
    17  21:03  Moon at Perigee: 367758 km
    20  18:59  FIRST QUARTER MOON 
    21  00     Orionid Meteor Shower
    27  18:41  Moon at Ascending Node 
    28  00:04  Total Lunar Eclipse; mag=1.308
    28  00:07  FULL MOON 
    29  23:14  Pleiades 1.7°N of Moon

Nov 01  12     Venus at Perihelion 
    01  19:49  Mars 2.5°N of Spica
    02  15:09  Moon at Apogee: 404999 km
    03  11:23  Pollux 1.5°N of Moon
    04  22     Venus 0.5°N of Jupiter
    05  00     S Taurid Meteor Shower
    05  02:53  LAST QUARTER MOON 
    06  08:33  Regulus 4.6°S of Moon
    09  12:36  Jupiter 1.0°S of Moon: Occn.
    09  22:40  Venus 0.2°N of Moon: Occn.
    10  12:32  Spica 3.1°S of Moon
    11  01:19  Mars 0.5°N of Moon: Occn.
    11  04:43  Moon at Descending Node 
    11  13:24  Mercury 2.1°N of Antares
    12  00     N Taurid Meteor Shower
    12  11:27  NEW MOON 
    13  18:28  Antares 1.4°S of Moon
    14  00:19  Mercury 0.9°N of Moon: Occn.
    14  10:54  Moon at Perigee: 362313 km
    17  06     Leonid Meteor Shower
    17  10:20  Venus 3.6°N of Spica
    19  02:50  FIRST QUARTER MOON 
    20  22     Mercury at Greatest Elong: 22.2°E
    24  01:05  Moon at Ascending Node 
    26  06:27  Pleiades 1.7°N of Moon
    26  17:07  FULL MOON 
    30  08:25  Moon at Apogee: 405953 km
    30  18:41  Pollux 1.6°N of Moon

Dec 03  16:35  Regulus 4.4°S of Moon
    04  21:53  LAST QUARTER MOON 
    05  20     Venus 1.2°N of Mars
    07  07:36  Jupiter 0.3°S of Moon: Occn.
    07  23:00  Spica 3.0°S of Moon
    08  13:57  Moon at Descending Node 
    09  21:22  Mars 2.1°N of Moon
    10  00     Mercury at Perihelion 
    10  02:08  Venus 3.5°N of Moon
    10  05     Mercury at Inferior Conjunction 
    11  22:29  NEW MOON 
    12  18:30  Moon at Perigee: 357986 km
    13  19     Geminid Meteor Shower
    18  13:40  FIRST QUARTER MOON 
    21  03:51  Moon at Ascending Node 
    21  09:42  Winter Solstice 
    22  03     Ursid Meteor Shower
    23  12:35  Pleiades 1.7°N of Moon
    26  12:06  FULL MOON 
    27  16:15  Moon at Apogee: 406488 km
    28  01:09  Pollux 1.7°N of Moon
    29  17     Mercury at Greatest Elong: 22.4°W
    30  23:16  Regulus 4.2°S of 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

2004 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.

2004 Phases of the Moon
Argentina Time
New Moon First Quarter Full Moon Last Quarter
-- Jan 07 12:40 Jan 15 01:46
Jan 21 18:05 Jan 29 03:03 Feb 06 05:47 Feb 13 10:40
Feb 20 06:18 Feb 28 00:24 Mar 06 20:14 Mar 13 18:01
Mar 20 19:41 Mar 28 20:48 Apr 05 08:03 Apr 12 00:46
Apr 19 10:21 P Apr 27 14:32 May 04 17:33 t May 11 08:04
May 19 01:52 May 27 04:57 Jun 03 01:20 Jun 09 17:02
Jun 17 17:27 Jun 25 16:08 Jul 02 08:09 Jul 09 04:34
Jul 17 08:24 Jul 25 00:37 Jul 31 15:05 Aug 07 19:01
Aug 15 22:24 Aug 23 07:12 Aug 29 23:22 Sep 06 12:11
Sep 14 11:29 Sep 21 12:54 Sep 28 10:09 Oct 06 07:12
Oct 13 23:48 P Oct 20 18:59 Oct 28 00:07 t Nov 05 02:53
Nov 12 11:27 Nov 19 02:50 Nov 26 17:07 Dec 04 21:53
Dec 11 22:29 Dec 18 13:40 Dec 26 12:06 -

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: 2001 to 2010

The Americas

Below are links to sky event almanacs from 2001 to 2010 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 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
AST 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
EST 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
CST 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
MST 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
PST 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
AKST 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
HST 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

        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

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)