2015Calendar of Astronomical Events
2015Phases of the Moon
Mountain Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Mountain Standard Time(Greenwich Mean Time - 7 hours).If Daylight Saving Time is in effect, add one hour to the times listed.
| 2015 Phases of the Moon | |||
| Mountain Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | Jan 4 21:53 | Jan 13 02:47 |
| Jan 20 06:14 | Jan 26 21:48 | Feb 3 16:09 | Feb 11 20:50 |
| Feb 18 16:47 | Feb 25 10:14 | Mar 5 11:06 | Mar 13 10:48 |
| Mar 20 02:36 T | Mar 27 00:43 | Apr 4 05:06 p | Apr 11 20:44 |
| Apr 18 11:57 | Apr 25 16:55 | May 3 20:42 | May 11 03:36 |
| May 17 21:13 | May 25 10:19 | Jun 2 09:19 | Jun 9 08:42 |
| Jun 16 07:05 | Jun 24 04:03 | Jul 1 19:20 | Jul 8 13:24 |
| Jul 15 18:24 | Jul 23 21:04 | Jul 31 03:43 | Aug 6 19:03 |
| Aug 14 07:54 | Aug 22 12:31 | Aug 29 11:35 | Sep 5 02:54 |
| Sep 12 23:41 P | Sep 21 01:59 | Sep 27 19:50 t | Oct 4 14:06 |
| Oct 12 17:06 | Oct 20 13:31 | Oct 27 05:05 | Nov 3 05:24 |
| Nov 11 10:47 | Nov 18 23:27 | Nov 25 15:44 | Dec 3 00:40 |
| Dec 11 03:29 | Dec 18 08:14 | Dec 25 04:11 | - |
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 table above. 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.
Phases of the Moon Photo Gallery is an image collection showing the Moon's phases over a complete synodic month.
2015Calendar of Astronomical Events
Mountain Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Mountain Standard Time(Greenwich Mean Time - 7 hours).If Daylight Saving Time is in effect, add one hour to the times listed. A key to astronomical terms appears below the calendar.
| 2015Calendar of Astronomical Events | ||||||||
| Mountain Standard Time | ||||||||
| January - June | July - December | |||||||
Date MST Event (h:m)Jan 02 04:35 Aldebaran 1.4°S of Moon 03 19 Quadrantid Meteor Shower 03 23 Earth at Perihelion: 0.98328 AU 04 21:53 FULL MOON 08 01:16 Jupiter 5.1°N of Moon 08 18:34 Regulus 4.1°N of Moon 09 11:17 Moon at Apogee: 405411 km 10 18 Mercury 0.6°N of Venus 12 08:33 Moon at Ascending Node 13 02:27 Spica 3.1°S of Moon 13 02:47 LAST QUARTER MOON 14 13 Mercury at Greatest Elong: 18.9°E 16 04:52 Saturn 1.9°S of Moon 20 06:14 NEW MOON 21 10:39 Mercury 3.0°S of Moon 21 13:06 Moon at Perigee: 359643 km 21 14 Mercury at Perihelion 21 22:01 Venus 5.6°S of Moon 22 21:40 Mars 3.9°S of Moon 25 03:23 Moon at Descending Node 26 21:48 FIRST QUARTER MOON 29 10:07 Aldebaran 1.2°S of Moon 30 07 Mercury at Inferior Conjunction Feb 03 16:09 FULL MOON 04 01:35 Jupiter 5.2°N of Moon 05 01:17 Regulus 4.0°N of Moon 05 23:25 Moon at Apogee: 406155 km 06 10 Jupiter at Opposition 08 10:10 Moon at Ascending Node 09 09:23 Spica 3.3°S of Moon 11 20:50 LAST QUARTER MOON 12 17:10 Saturn 2.1°S of Moon 16 23:20 Mercury 3.5°S of Moon 18 16:47 NEW MOON 19 00:29 Moon at Perigee: 356992 km 20 17:56 Venus 2.0°S of Moon 20 18:28 Mars 1.5°S of Moon 21 09:05 Moon at Descending Node 21 22 Venus 0.4°S of Mars 24 09 Mercury at Greatest Elong: 26.7°W 25 10:14 FIRST QUARTER MOON 25 16:02 Aldebaran 1.0°S of Moon 25 21 Neptune in Conjunction with Sun Mar 03 00:56 Jupiter 5.5°N of Moon 04 07:29 Regulus 4.0°N of Moon 05 00:35 Moon at Apogee: 406386 km 05 11:05 FULL MOON 06 13 Mercury at Aphelion 07 14:04 Moon at Ascending Node 08 15:21 Spica 3.4°S of Moon 12 01:25 Saturn 2.3°S of Moon 13 10:48 LAST QUARTER MOON 18 21:57 Mercury 5.2°S of Moon 19 12:38 Moon at Perigee: 357584 km 20 02:36 NEW MOON 20 02:46 Total Solar Eclipse; mag=1.045 20 15:45 Vernal Equinox 20 19:19 Moon at Descending Node 21 15:13 Mars 1.0°N of Moon: Occn. 22 12:51 Venus 2.8°N of Moon 24 23:55 Aldebaran 0.9°S of Moon 27 00:43 FIRST QUARTER MOON 30 03:19 Jupiter 5.6°N of Moon 31 13:45 Regulus 4.0°N of MoonApr 01 05:59 Moon at Apogee: 406012 km 03 20:17 Moon at Ascending Node 04 05:00 Total Lunar Eclipse; mag=1.001 04 05:06 FULL MOON 04 21:21 Spica 3.5°S of Moon 06 07 Uranus in Conjunction with Sun 08 06:08 Saturn 2.2°S of Moon 08 07:34 Jupiter 2.0°S of Beehive 09 21 Mercury at Superior Conjunction 11 08:28 Venus 2.5°S of Pleiades 11 20:44 LAST QUARTER MOON 16 20:53 Moon at Perigee: 361026 km 17 06:07 Moon at Descending Node 18 06 Venus at Perihelion 18 11:57 NEW MOON 19 12:24 Venus 7.2°N of Aldebaran 19 13 Mercury at Perihelion 21 09:35 Aldebaran 0.9°S of Moon 22 12 Mercury 1.3°N of Mars 22 16 Lyrid Meteor Shower 25 16:55 FIRST QUARTER MOON 26 11:06 Jupiter 5.5°N of Moon 27 20:38 Regulus 4.0°N of Moon 28 20:55 Moon at Apogee: 405085 km 30 18:29 Mercury 1.6°S of PleiadesMay 01 02:50 Moon at Ascending Node 02 04:10 Spica 3.5°S of Moon 03 20:42 FULL MOON 05 06 Eta-Aquarid Meteor Shower 05 09:19 Saturn 2.0°S of Moon 06 22 Mercury at Greatest Elong: 21.2°E 11 03:36 LAST QUARTER MOON 14 13:37 Moon at Descending Node 14 17:23 Moon at Perigee: 366024 km 17 21:13 NEW MOON 18 23:51 Mercury 5.7°N of Moon 22 18 Saturn at Opposition 24 00:03 Jupiter 5.1°N of Moon 25 04:14 Regulus 3.8°N of Moon 25 10:19 FIRST QUARTER MOON 26 15:12 Moon at Apogee: 404246 km 28 07:40 Moon at Ascending Node 29 10:27 Venus 3.9°S of Pollux 29 11:52 Spica 3.6°S of Moon 30 10 Mercury at Inferior Conjunction Jun 01 13:02 Saturn 1.9°S of Moon 02 09:19 FULL MOON 06 12 Venus at Greatest Elong: 45.4°E 09 08:42 LAST QUARTER MOON 09 21:39 Moon at Perigee: 369713 km 10 16:30 Moon at Descending Node 13 01:59 Venus 0.5°N of Beehive 14 08 Mars in Conjunction with Sun 14 19:26 Mercury 0.0°N of Moon: Occn. 16 07:05 NEW MOON 20 04:28 Venus 5.8°N of Moon 20 16:29 Jupiter 4.7°N of Moon 21 09:38 Summer Solstice 21 12:10 Regulus 3.6°N of Moon 23 02:37 Mercury 1.8°N of Aldebaran 23 10:01 Moon at Apogee: 404134 km 24 04:03 FIRST QUARTER MOON 24 10 Mercury at Greatest Elong: 22.5°W 24 10:23 Moon at Ascending Node 25 19:58 Spica 3.8°S of Moon 28 18:27 Saturn 2.0°S of Moon 30 19 Venus 0.3°S of Jupiter | Date MST Event (h:m)Jul 01 19:20 FULL MOON 05 11:54 Moon at Perigee: 367095 km 06 12 Earth at Aphelion: 1.01668 AU 07 17:07 Moon at Descending Node 08 13:24 LAST QUARTER MOON 12 10:55 Aldebaran 0.9°S of Moon 14 14:15 Venus 1.5°S of Regulus 15 18:24 NEW MOON 16 12 Mercury at Perihelion 18 10:34 Jupiter 4.1°N of Moon 18 18:06 Venus 0.4°N of Moon: Occn. 18 19:49 Regulus 3.4°N of Moon 21 04:02 Moon at Apogee: 404837 km 21 12:32 Moon at Ascending Node 23 03:45 Spica 4.0°S of Moon 23 12 Mercury at Superior Conjunction 23 21:04 FIRST QUARTER MOON 26 01:43 Saturn 2.2°S of Moon 28 07 Delta-Aquarid Meteor Shower 31 03:43 FULL MOON Aug 02 03:11 Moon at Perigee: 362135 km 03 19:53 Moon at Descending Node 06 19:03 LAST QUARTER MOON 07 00 Mercury 0.5°N of Jupiter 07 10:25 Mercury 0.8°N of Regulus 08 15 Venus at Aphelion 08 16:22 Aldebaran 0.7°S of Moon 12 23 Perseid Meteor Shower 14 07:54 NEW MOON 15 12 Venus at Inferior Conjunction 16 07:34 Mercury 2.0°N of Moon 17 16:05 Moon at Ascending Node 17 19:33 Moon at Apogee: 405852 km 19 10:46 Spica 4.2°S of Moon 19 20:35 Mars 0.5°S of Beehive 22 10:21 Saturn 2.6°S of Moon 22 12:31 FIRST QUARTER MOON 26 14 Jupiter in Conjunction with Sun 29 11:35 FULL MOON 29 12 Mercury at Aphelion 30 08:24 Moon at Perigee: 358289 km 31 03:16 Moon at Descending Node 31 19 Neptune at Opposition Sep 04 03 Mercury at Greatest Elong: 27.1°E 04 22:09 Aldebaran 0.6°S of Moon 05 02:54 LAST QUARTER MOON 09 22:53 Venus 2.7°S of Moon 12 23:41 NEW MOON 12 23:54 Partial Solar Eclipse; mag=0.788 13 21:38 Moon at Ascending Node 14 04:28 Moon at Apogee: 406466 km 14 23:15 Mercury 5.3°S of Moon 15 17:00 Spica 4.3°S of Moon 18 19:54 Saturn 2.8°S of Moon 21 01:59 FIRST QUARTER MOON 23 01:20 Autumnal Equinox 24 12:38 Mars 0.7°N of Regulus 27 14:04 Moon at Descending Node 27 18:46 Moon at Perigee: 356877 km 27 19:47 Total Lunar Eclipse; mag=1.276 27 19:50 FULL MOON 30 08 Mercury at Inferior Conjunction Oct 02 05:51 Aldebaran 0.5°S of Moon 04 14:06 LAST QUARTER MOON 08 13:32 Venus 0.7°N of Moon: Occn. 08 14:52 Regulus 3.3°N of Moon 08 17:26 Venus 2.5°S of Regulus 09 09:51 Mars 3.4°N of Moon 09 16:30 Jupiter 2.7°N of Moon 11 03:54 Moon at Ascending Node 11 05:00 Mercury 1.0°N of Moon: Occn. 11 06:17 Moon at Apogee: 406389 km 11 20 Uranus at Opposition 12 11 Mercury at Perihelion 12 17:06 NEW MOON 15 20 Mercury at Greatest Elong: 18.1°W 16 06:20 Saturn 3.0°S of Moon 17 14 Mars 0.4°N of Jupiter 20 13:31 FIRST QUARTER MOON 21 16 Orionid Meteor Shower 25 00:36 Moon at Descending Node 25 16 Venus 1.0°S of Jupiter 26 00 Venus at Greatest Elong: 46.4°W 26 05:59 Moon at Perigee: 358464 km 27 05:05 FULL MOON 29 15:45 Aldebaran 0.6°S of MoonNov 03 00 Venus 0.7°S of Mars 03 05:24 LAST QUARTER MOON 04 21:19 Regulus 3.2°N of Moon 05 16 S Taurid Meteor Shower 06 08:49 Jupiter 2.3°N of Moon 07 02:56 Mars 1.8°N of Moon 07 06:54 Venus 1.2°N of Moon 07 08:53 Moon at Ascending Node 07 14:48 Moon at Apogee: 405724 km 09 05:27 Spica 4.3°S of Moon 11 10:47 NEW MOON 12 15 N Taurid Meteor Shower 17 08 Mercury at Superior Conjunction 17 22 Leonid Meteor Shower 18 23:27 FIRST QUARTER MOON 20 16 Mars at Aphelion: 1.66606 AU 21 06:56 Moon at Descending Node 23 13:06 Moon at Perigee: 362818 km 25 15:44 FULL MOON 26 02:33 Aldebaran 0.7°S of Moon 28 23 Venus at Perihelion 29 12:20 Venus 3.9°N of Spica 29 17 Saturn in Conjunction with Sun Dec 02 04:53 Regulus 3.0°N of Moon 03 00:40 LAST QUARTER MOON 03 23:21 Jupiter 1.8°N of Moon 04 11:33 Moon at Ascending Node 05 07:56 Moon at Apogee: 404800 km 05 19:40 Mars 0.1°N of Moon: Occn. 06 12:42 Spica 4.4°S of Moon 07 09:55 Venus 0.7°S of Moon: Occn. 11 03:29 NEW MOON 14 11 Geminid Meteor Shower 17 23:01 Saturn 6.1°N of Antares 18 08:13 Moon at Descending Node 18 08:14 FIRST QUARTER MOON 21 01:53 Moon at Perigee: 368418 km 21 21:48 Winter Solstice 22 19 Ursid Meteor Shower 23 07:18 Mars 3.3°N of Spica 23 12:09 Aldebaran 0.7°S of Moon 25 04:11 FULL MOON 28 20 Mercury at Greatest Elong: 19.7°E 29 13:30 Regulus 2.7°N of Moon 31 10:55 Jupiter 1.5°N of Moon 31 13:19 Moon at Ascending Node | |||||||
Terms Used in Astronomical Events Calendar
- 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
- Beehive - bright star cluster in the constellation Cancer
Calendars of Astronomical Events: 2011 to 2020
The Americas
Below are links to calendars of astronomical events from 2011 to 2020 for seven time zones in the Americas.
Choose a time zone and click on a year to get a calendar of astronomical events for that year.
| Calendars of Astronomical Events - The Americas | |||||||||||||||
| 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 | |||||
- AST = Atlantic Standard Time (= GMT - 4 hours)
- EST = Eastern Standard Time (= GMT - 5 hours)
- CST = Central Standard Time (= GMT - 6 hours)
- MST = Mountain Standard Time (= GMT - 7 hours)
- PST = Pacific Standard Time (= GMT - 8 hours)
- AKST = Alaskan Standard Time (= GMT - 9 hours)
- HST = Hawaiian Standard Time (= GMT - 10 hours)
(where GMT = Greenwich Mean 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 Greenwich Mean Time to help in identification.
For other years and other time zones, visit: Calendars of Astronomical Events.