2011 Sky Event Almanac
Australian Central Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Australian Central Time (Coordinated Universal Time + 9.5 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 | ||||||||
| Australian Central Time | ||||||||
| January - June | July - December | |||||||
Date ACT Event
(h:m)
Jan 02 03:37 Antares 2.5°S of Moon
03 00:02 Mercury 3.8°N of Moon
03 22:18 Moon at Ascending Node
04 04 Earth at Perihelion: 0.98334 AU
04 11 Quadrantid Meteor Shower
04 18:21 Partial Solar Eclipse; mag=0.858
04 18:33 NEW MOON
09 00 Venus at Greatest Elong: 47.0°W
09 23 Mercury at Greatest Elong: 23.3°W
10 15:08 Moon at Apogee: 404976 km
12 21:01 FIRST QUARTER MOON
15 22:09 Pleiades 1.3°N of Moon
18 09:36 Moon at Descending Node
20 06:51 FULL MOON
22 09:40 Moon at Perigee: 362793 km
26 03:08 Spica 3.0°N of Moon
26 22:27 LAST QUARTER MOON
29 09:23 Antares 2.6°S of Moon
30 13:06 Venus 3.5°N of Moon
31 03:59 Moon at Ascending Node
31 18 Mercury at Aphelion
Feb 02 03:44 Mercury 3.6°S of Moon
03 12:01 NEW MOON
05 02 Mars in Conjunction with Sun
07 08:43 Moon at Apogee: 405924 km
11 16:48 FIRST QUARTER MOON
12 07:02 Pleiades 1.4°N of Moon
14 17:44 Moon at Descending Node
17 19 Neptune in Conjunction with Sun
18 18:06 FULL MOON
19 16:57 Moon at Perigee: 358247 km
22 10:32 Spica 2.8°N of Moon
25 08:56 LAST QUARTER MOON
25 14:56 Antares 2.8°S of Moon
25 18 Mercury at Superior Conjunction
27 05:49 Moon at Ascending Node
Mar 01 13:10 Venus 1.6°S of Moon
05 06:16 NEW MOON
06 17:20 Moon at Apogee: 406584 km
09 23 Mars at Perihelion: 1.38138 AU
11 14:05 Pleiades 1.7°N of Moon
13 09:15 FIRST QUARTER MOON
13 21:25 Moon at Descending Node
16 06 Mercury 2.0°N of Jupiter
16 17 Mercury at Perihelion
18 02 Jupiter at Perihelion: 4.94839 AU
20 03:40 FULL MOON
20 04:39 Moon at Perigee: 356578 km
21 08:51 Vernal Equinox
21 20:30 Spica 2.6°N of Moon
21 21 Uranus in Conjunction with Sun
23 10 Mercury at Greatest Elong: 18.6°E
24 22:18 Antares 3.0°S of Moon
26 06:39 Moon at Ascending Node
26 21:37 LAST QUARTER MOON
Apr 02 18:30 Moon at Apogee: 406656 km
04 00:02 NEW MOON
04 09 Saturn at Opposition
07 01 Jupiter in Conjunction with Sun
07 19:49 Pleiades 1.9°N of Moon
09 22:18 Moon at Descending Node
10 05 Mercury at Inferior Conjunction
11 21:35 FIRST QUARTER MOON
17 15:29 Moon at Perigee: 358088 km
18 07:34 Spica 2.5°N of Moon
18 12:14 FULL MOON
19 09 Venus at Aphelion
20 04 Mercury 0.6°N of Mars
21 07:51 Antares 3.2°S of Moon
22 10:35 Moon at Ascending Node
23 08 Lyrid Meteor Shower
25 12:17 LAST QUARTER MOON
30 03:32 Moon at Apogee: 406043 km
May 01 13 Mars 0.4°N of Jupiter
03 16:21 NEW MOON
05 01:35 Pleiades 2.0°N of Moon
05 21 Eta-Aquarid Meteor Shower
07 00:24 Moon at Descending Node
08 04 Mercury at Greatest Elong: 26.6°W
08 15 Mercury 1.4°S of Venus
11 06:03 FIRST QUARTER MOON
12 00 Venus 0.6°S of Jupiter
12 06 Mercury 2.1°S of Jupiter
15 17:38 Spica 2.6°N of Moon
15 20:48 Moon at Perigee: 362133 km
17 20:39 FULL MOON
18 16 Mercury 1.4°S of Venus
18 18:16 Antares 3.3°S of Moon
19 18:33 Moon at Ascending Node
21 18 Mercury 2.1°S of Mars
23 19 Venus 1.0°S of Mars
25 04:22 LAST QUARTER MOON
27 19:28 Moon at Apogee: 405006 km
31 05:34 Mars 3.8°S of Moon
31 13:30 Venus 4.4°S of Moon
Jun 02 06:33 NEW MOON
02 06:46 Partial Solar Eclipse; mag=0.601
03 05:51 Moon at Descending Node
09 11:41 FIRST QUARTER MOON
12 01:27 Spica 2.6°N of Moon
12 11:12 Moon at Perigee: 367188 km
12 17 Mercury at Perihelion
13 09 Mercury at Superior Conjunction
15 03:47 Antares 3.3°S of Moon
16 04:05 Moon at Ascending Node
16 05:43 Total Lunar Eclipse; mag=1.700
16 05:43 FULL MOON
17 21:45 Venus 4.6°N of Aldebaran
21 10:54 Mars 4.2°S of Pleiades
22 02:46 Summer Solstice
23 21:18 LAST QUARTER MOON
24 13:43 Moon at Apogee: 404275 km
28 16:22 Pleiades 2.0°N of Moon
28 17:10 Mercury 4.7°S of Pollux
29 04:29 Mars 1.7°S of Moon
30 13:44 Moon at Descending Node
|
Date ACT Event
(h:m)
Jul 01 18:08 Partial Solar Eclipse; mag=0.097
01 18:24 NEW MOON
05 00 Earth at Aphelion: 1.01674 AU
07 23:34 Moon at Perigee: 369566 km
08 15:59 FIRST QUARTER MOON
09 07:14 Spica 2.6°N of Moon
12 11:18 Antares 3.3°S of Moon
13 11:57 Moon at Ascending Node
15 16:10 FULL MOON
20 14 Mercury at Greatest Elong: 26.8°E
22 08:16 Moon at Apogee: 404358 km
23 14:32 LAST QUARTER MOON
26 00:58 Pleiades 2.1°N of Moon
26 16 Mercury at Aphelion
26 22:21 Mercury 2.1°S of Regulus
27 21:33 Moon at Descending Node
28 02:22 Mars 0.5°N of Moon: Occn.
28 23 Delta-Aquarid Meteor Shower
31 04:10 NEW MOON
Aug 01 20:50 Mercury 1.5°N of Moon
03 06:29 Moon at Perigee: 365756 km
05 12:38 Spica 2.4°N of Moon
06 20:38 FIRST QUARTER MOON
08 17:02 Antares 3.5°S of Moon
09 16:05 Moon at Ascending Node
09 17 Venus at Perihelion
13 15 Perseid Meteor Shower
14 04:28 FULL MOON
16 21 Venus at Superior Conjunction
17 10 Mercury at Inferior Conjunction
19 01:53 Moon at Apogee: 405161 km
22 07:25 LAST QUARTER MOON
22 09:10 Pleiades 2.3°N of Moon
23 07 Neptune at Opposition
24 02:53 Moon at Descending Node
25 23:06 Mars 2.7°N of Moon
28 10:37 Mercury 2.6°N of Moon
29 12:34 NEW MOON
31 03:05 Moon at Perigee: 360858 km
Sep 01 19:36 Spica 2.2°N of Moon
03 15 Mercury at Greatest Elong: 18.1°W
04 22:30 Antares 3.7°S of Moon
05 03:09 FIRST QUARTER MOON
05 17:06 Moon at Ascending Node
08 16 Mercury at Perihelion
09 11:48 Mercury 0.6°N of Regulus
12 18:57 FULL MOON
15 15:53 Moon at Apogee: 406068 km
18 16:16 Pleiades 2.5°N of Moon
20 05:08 Moon at Descending Node
20 23:09 LAST QUARTER MOON
23 17:53 Mars 4.8°N of Moon
23 18:35 Autumnal Equinox
26 09 Uranus at Opposition
27 20:39 NEW MOON
28 10:31 Moon at Perigee: 357556 km
29 05:04 Spica 2.1°N of Moon
29 06 Mercury at Superior Conjunction
Oct 02 05:34 Antares 3.9°S of Moon
02 18:39 Moon at Ascending Node
04 12:45 FIRST QUARTER MOON
12 11:36 FULL MOON
12 21:13 Moon at Apogee: 406435 km
14 06 Saturn in Conjunction with Sun
15 22:19 Pleiades 2.7°N of Moon
17 06:31 Moon at Descending Node
20 13:00 LAST QUARTER MOON
22 07 Orionid Meteor Shower
26 21:56 Moon at Perigee: 357051 km
27 05:26 NEW MOON
28 11:44 Mercury 0.2°N of Moon: Occn.
28 14:41 Venus 1.8°N of Moon
29 11 Jupiter at Opposition
29 15:07 Antares 4.1°S of Moon
30 00:29 Moon at Ascending Node
Nov 02 06 Mercury 2.0°S of Venus
03 02:08 FIRST QUARTER MOON
06 08 S Taurid Meteor Shower
08 22:50 Moon at Apogee: 406177 km
10 17:21 Venus 3.8°N of Antares
10 17:57 Mercury 1.9°N of Antares
11 03:51 Mars 1.3°N of Regulus
11 05:46 FULL MOON
11 21:02 Saturn 4.0°N of Spica
12 04:13 Pleiades 2.8°N of Moon
13 07 N Taurid Meteor Shower
13 10:05 Moon at Descending Node
13 17 Mercury 2.0°S of Venus
14 18 Mercury at Greatest Elong: 22.7°E
18 13 Leonid Meteor Shower
19 00:39 LAST QUARTER MOON
23 02:51 Spica 2.1°N of Moon
24 08:54 Moon at Perigee: 359692 km
25 15:40 NEW MOON
25 15:50 Partial Solar Eclipse; mag=0.905
26 10:32 Moon at Ascending Node
26 19:18 Mercury 1.7°S of Moon
27 13:59 Venus 2.8°S of Moon
Dec 02 19:22 FIRST QUARTER MOON
04 18 Mercury at Inferior Conjunction
05 15 Mercury at Perihelion
06 10:43 Moon at Apogee: 405414 km
09 10:56 Pleiades 2.8°N of Moon
10 16:34 Moon at Descending Node
11 00:02 Total Lunar Eclipse; mag=1.106
11 00:06 FULL MOON
15 03 Geminid Meteor Shower
18 10:18 LAST QUARTER MOON
20 11:07 Spica 2.1°N of Moon
22 12:26 Moon at Perigee: 364801 km
22 15:00 Winter Solstice
23 11 Ursid Meteor Shower
23 12 Mercury at Greatest Elong: 21.8°W
23 12:35 Antares 4.1°S of Moon
23 13:20 Mercury 2.6°N of Moon
23 21:06 Moon at Ascending Node
25 03:36 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
Australian Central Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Australian Central Time (Coordinated Universal Time + 9.5 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 | |||
| Australian Central Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| Jan 04 18:33 P | Jan 12 21:01 | Jan 20 06:51 | Jan 26 22:27 |
| Feb 03 12:01 | Feb 11 16:48 | Feb 18 18:06 | Feb 25 08:56 |
| Mar 05 06:16 | Mar 13 09:15 | Mar 20 03:40 | Mar 26 21:37 |
| Apr 04 00:02 | Apr 11 21:35 | Apr 18 12:14 | Apr 25 12:17 |
| May 03 16:21 | May 11 06:03 | May 17 20:39 | May 25 04:22 |
| Jun 02 06:33 P | Jun 09 11:41 | Jun 16 05:43 t | Jun 23 21:18 |
| Jul 01 18:24 P | Jul 08 15:59 | Jul 15 16:10 | Jul 23 14:32 |
| Jul 31 04:10 | Aug 06 20:38 | Aug 14 04:28 | Aug 22 07:25 |
| Aug 29 12:34 | Sep 05 03:09 | Sep 12 18:57 | Sep 20 23:09 |
| Sep 27 20:39 | Oct 04 12:45 | Oct 12 11:36 | Oct 20 13:00 |
| Oct 27 05:26 | Nov 03 02:08 | Nov 11 05:46 | Nov 19 00:39 |
| Nov 25 15:40 P | Dec 02 19:22 | Dec 11 00:06 t | Dec 18 10:18 |
| Dec 25 03:36 | - | - | - |
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
Asia & Oceania
Below are links to sky event almanacs from 2011 to 2020 for ten time zones in Asia & Oceania.
Choose a time zone and click on a year to get a sky event almanac for that year.
| Sky Event Almanacs - Asia & Oceania | |||||||||||||||
| PKT | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| IST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| BST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| ICT | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| AWST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| JST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| ACT | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| AEST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| NCT | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| NZST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
- PKT = Pakistan Standard Time (= UTC + 5 hours)
- IST = Indian Standard Time (= UTC + 5.5 hours)
- BST = Bangladesh Standard Time (= UTC + 6 hours)
- ICT = Indochina Time (= UTC + 7 hours)
- AWST = Australian Western Standard Time (= UTC + 8 hours)
- JST = Japan Standard Time (= UTC + 9 hours)
- ACT = Australian Central Time (= UTC + 9.5 hours)
- AEST = Australian Eastern Standard Time (= UTC + 10 hours)
- NCT = New Caledonia Time (= UTC + 11 hours)
- NZST = New Zealand Standard Time (= UTC + 12 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
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Astronomy Tools (Astronomy Tools)