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