2099 Sky Event Almanac
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 (Coordinated Universal Time − 7 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.
2099 Sky Event Almanac | ||||||||
Mountain Standard Time | ||||||||
January - June | July - December | |||||||
Date MST Event (h:m) Jan 03 11:16 Pleiades 0.3°N of Moon 04 08 Quadrantid Meteor Shower 04 23 Earth at Perihelion: 0.98331 AU 06 18:50 FULL MOON 07 05:21 Pollux 1.9°N of Moon 08 11:21 Moon at Perigee: 361107 km 08 13 Mercury at Superior Conjunction 09 13:58 Regulus 3.0°S of Moon 11 06:18 Jupiter 0.1°S of Moon: Occn. 11 19 Venus 2.5°N of Mars 12 08:34 Moon at Descending Node 12 19:20 Saturn 3.2°N of Moon 13 09:55 Spica 0.8°S of Moon 13 10:26 LAST QUARTER MOON 15 05:26 Mars 4.7°N of Antares 16 21:55 Antares 0.2°S of Moon 21 02:07 NEW MOON 24 05:47 Moon at Apogee: 406101 km 26 14:57 Moon at Ascending Node 29 07:38 FIRST QUARTER MOON 30 20:56 Pleiades 0.0°N of Moon Feb 03 16:31 Pollux 1.8°N of Moon 05 05:48 FULL MOON 05 21:14 Moon at Perigee: 357384 km 06 00:24 Regulus 2.9°S of Moon 07 13:03 Jupiter 0.1°N of Moon: Occn. 08 12:37 Moon at Descending Node 08 21 Mercury at Greatest Elong: 18.2°E 09 02:54 Saturn 3.6°N of Moon 09 17:16 Spica 0.6°S of Moon 10 21 Mercury at Perihelion 11 22:08 LAST QUARTER MOON 13 03:33 Antares 0.0°N of Moon 19 21:05 NEW MOON 20 10:45 Moon at Apogee: 406556 km 22 18:03 Moon at Ascending Node 24 08 Mercury at Inferior Conjunction 27 04:34 Pleiades 0.2°S of Moon 27 23:13 FIRST QUARTER MOON Mar 03 03:05 Pollux 1.7°N of Moon 03 18 Neptune at Opposition 05 11:53 Regulus 2.9°S of Moon 06 09:59 Moon at Perigee: 356797 km 06 15:59 FULL MOON 06 19:06 Jupiter 0.1°S of Moon: Occn. 07 21:55 Moon at Descending Node 08 06 Jupiter at Opposition 08 10:58 Saturn 3.7°N of Moon 09 03:07 Spica 0.4°S of Moon 12 10:38 Antares 0.2°N of Moon 13 12:00 LAST QUARTER MOON 15 15:11 Mars 4.5°N of Moon 18 13:48 Venus 2.9°N of Moon 19 01:03 Mercury 2.7°N of Moon 19 12:55 Moon at Apogee: 406404 km 20 00:17 Vernal Equinox 21 15:46 NEW MOON 21 15:51 Annular Solar Eclipse; mag=0.932 21 23:42 Moon at Ascending Node 23 06 Mercury at Greatest Elong: 27.8°W 26 10:27 Pleiades 0.2°S of Moon 26 20 Mercury at Aphelion 28 10 Mercury 3.1°N of Venus 29 10:38 FIRST QUARTER MOON 30 11:17 Pollux 1.7°N of Moon 31 00 Saturn at Opposition Apr 01 22:06 Regulus 2.9°S of Moon 03 00:32 Jupiter 0.4°S of Moon: Occn. 03 20:23 Moon at Perigee: 359339 km 04 09:07 Moon at Descending Node 04 18:45 Saturn 3.5°N of Moon 05 01:28 Partial Lunar Eclipse; mag=0.168 05 01:37 FULL MOON 05 14:10 Spica 0.4°S of Moon 06 20 Uranus in Conjunction with Sun 08 19:43 Antares 0.2°N of Moon 08 22 Venus at Aphelion 12 03:47 LAST QUARTER MOON 13 13:49 Mars 3.2°N of Moon 16 01:34 Moon at Apogee: 405586 km 18 03:21 Venus 1.5°S of Moon 18 06:18 Moon at Ascending Node 19 01:46 Mercury 3.3°S of Moon 20 08:30 NEW MOON 22 16:07 Pleiades 0.2°S of Moon 23 05 Lyrid Meteor Shower 26 17:18 Pollux 1.8°N of Moon 27 18:36 FIRST QUARTER MOON 29 05:48 Regulus 2.8°S of Moon 30 05:57 Jupiter 0.6°S of Moon: Occn. May 01 17:58 Moon at Descending Node 01 22:55 Moon at Perigee: 364037 km 02 01:19 Saturn 3.3°N of Moon 03 00:20 Spica 0.4°S of Moon 04 06 Mercury at Superior Conjunction 04 10:58 FULL MOON 05 18 Eta-Aquarid Meteor Shower 06 05:45 Antares 0.1°N of Moon 09 20 Mercury at Perihelion 11 21:00 LAST QUARTER MOON 12 15:07 Mars 1.1°N of Moon: Occn. 13 19:22 Moon at Apogee: 404556 km 15 11:38 Moon at Ascending Node 19 22:16 NEW MOON 21 10:36 Mercury 2.7°S of Moon 23 22:48 Pollux 1.9°N of Moon 26 11:35 Regulus 2.6°S of Moon 27 00:16 FIRST QUARTER MOON 27 12:45 Jupiter 0.5°S of Moon: Occn. 28 22:09 Moon at Descending Node 29 00:58 Moon at Perigee: 368838 km 29 06:47 Saturn 3.3°N of Moon 30 08:20 Spica 0.3°S of Moon Jun 02 15:03 Antares 0.0°N of Moon 02 20:37 FULL MOON 03 15 Mercury at Greatest Elong: 23.4°E 10 14:17 Moon at Apogee: 404057 km 10 14:49 LAST QUARTER MOON 10 17:09 Mars 1.8°S of Moon 11 14:47 Moon at Ascending Node 16 07:12 Pleiades 0.2°S of Moon 18 09:10 NEW MOON 20 05:35 Pollux 2.1°N of Moon 20 16:41 Summer Solstice 22 17:19 Regulus 2.3°S of Moon 23 02:41 Moon at Perigee: 368734 km 23 22:31 Jupiter 0.1°S of Moon: Occn. 24 22:59 Moon at Descending Node 25 05:00 FIRST QUARTER MOON 25 12:40 Saturn 3.5°N of Moon 26 14:22 Spica 0.1°S of Moon 29 22:37 Antares 0.1°N of Moon 30 01 Mercury at Inferior Conjunction |
Date MST Event (h:m) Jul 02 07:21 FULL MOON 07 01 Earth at Aphelion: 1.01666 AU 08 08:42 Moon at Apogee: 404420 km 08 16:53 Moon at Ascending Node 10 08:13 LAST QUARTER MOON 13 16:19 Pleiades 0.3°S of Moon 17 18:01 NEW MOON 20 00:44 Regulus 2.2°S of Moon 20 05:45 Moon at Perigee: 364045 km 21 12:06 Jupiter 0.5°N of Moon: Occn. 21 19 Mercury at Greatest Elong: 20.3°W 22 00:43 Moon at Descending Node 22 14 Venus at Superior Conjunction 22 20:50 Saturn 3.7°N of Moon 23 19:58 Spica 0.2°N of Moon 24 10:09 FIRST QUARTER MOON 27 04:33 Antares 0.3°N of Moon 28 20 Delta-Aquarid Meteor Shower 30 07 Venus at Perihelion 31 19:59 FULL MOON Aug 03 03 Mars at Perihelion: 1.38105 AU 04 19:59 Moon at Ascending Node 05 01:15 Moon at Apogee: 405336 km 05 19 Mercury at Perihelion 09 00:14 LAST QUARTER MOON 10 01:07 Pleiades 0.5°S of Moon 13 12 Perseid Meteor Shower 14 00:27 Pollux 2.1°N of Moon 16 01:54 NEW MOON 16 23 Mercury at Superior Conjunction 17 07:24 Moon at Perigee: 359644 km 18 05:24 Jupiter 1.1°N of Moon: Occn. 18 06:41 Moon at Descending Node 19 08:25 Saturn 4.0°N of Moon 20 02:59 Spica 0.4°N of Moon 22 17:01 FIRST QUARTER MOON 23 10:06 Antares 0.4°N of Moon 30 10:56 FULL MOON Sep 01 01:07 Moon at Ascending Node 01 12:45 Moon at Apogee: 406116 km 04 20 Mercury 0.7°S of Jupiter 06 08:36 Pleiades 0.7°S of Moon 06 20 Neptune in Conjunction with Sun 07 14:18 LAST QUARTER MOON 10 10:24 Pollux 2.0°N of Moon 12 21:05 Regulus 2.1°S of Moon 14 07 Mercury 3.0°S of Saturn 14 09:50 NEW MOON 14 09:55 Total Solar Eclipse; mag=1.068 14 16:26 Moon at Perigee: 357286 km 14 16:43 Moon at Descending Node 15 12:50 Venus 2.5°N of Moon 15 23:12 Saturn 4.3°N of Moon 16 00:07 Mercury 0.9°N of Moon: Occn. 16 12:17 Spica 0.4°N of Moon 18 19 Mercury at Aphelion 19 16:54 Antares 0.5°N of Moon 20 16 Venus 1.3°S of Saturn 21 02:48 FIRST QUARTER MOON 21 20:06 Mercury 0.2°N of Spica 22 09:10 Autumnal Equinox 26 02 Jupiter in Conjunction with Sun 28 03:18 Venus 2.6°N of Spica 28 07:27 Moon at Ascending Node 28 15:34 Moon at Apogee: 406272 km 29 03:33 Pen. Lunar Eclipse; mag=1.034 29 03:45 FULL MOON 30 20 Mercury at Greatest Elong: 25.9°E Oct 03 14:42 Pleiades 0.6°S of Moon 07 02:21 LAST QUARTER MOON 07 18:42 Pollux 2.0°N of Moon 09 23 Saturn in Conjunction with Sun 10 07:19 Regulus 2.1°S of Moon 12 03:41 Moon at Descending Node 12 05 Mercury 3.6°S of Venus 12 09 Uranus at Opposition 13 03:26 Moon at Perigee: 357782 km 13 18:32 NEW MOON 15 02:33 Mercury 0.5°N of Moon: Occn. 15 11:24 Venus 4.2°N of Moon 17 01:52 Antares 0.4°N of Moon 18 01 Mars at Opposition 20 16:27 FIRST QUARTER MOON 22 04 Orionid Meteor Shower 25 03 Mercury at Inferior Conjunction 25 13:00 Moon at Ascending Node 25 20:06 Moon at Apogee: 405825 km 28 21:20 FULL MOON 30 20:23 Pleiades 0.6°S of Moon Nov 01 19 Mercury at Perihelion 04 00:57 Pollux 2.2°N of Moon 04 07:59 Venus 3.6°N of Antares 05 12:42 LAST QUARTER MOON 06 05 S Taurid Meteor Shower 06 15:26 Regulus 1.9°S of Moon 08 11:30 Moon at Descending Node 09 18:17 Jupiter 3.0°N of Moon 10 00 Mercury at Greatest Elong: 19.0°W 10 07:45 Saturn 5.0°N of Moon 10 09:55 Spica 0.4°N of Moon 10 12:35 Moon at Perigee: 361208 km 12 04:29 NEW MOON 13 04 N Taurid Meteor Shower 13 12:23 Antares 0.3°N of Moon 14 09:49 Venus 3.8°N of Moon 18 10 Leonid Meteor Shower 19 10:17 FIRST QUARTER MOON 19 15 Venus at Aphelion 21 16:17 Moon at Ascending Node 22 10:25 Moon at Apogee: 404988 km 23 21:20 Mars 2.7°S of Moon 27 03:02 Pleiades 0.5°S of Moon 27 14:22 FULL MOON Dec 01 06:26 Pollux 2.4°N of Moon 03 21:24 Regulus 1.7°S of Moon 04 21:45 LAST QUARTER MOON 05 14:02 Moon at Descending Node 07 10:55 Jupiter 3.7°N of Moon 07 18:33 Spica 0.6°N of Moon 08 08:15 Saturn 4.2°N of Spica 08 10:50 Moon at Perigee: 366610 km 11 16:09 NEW MOON 14 12:02 Venus 2.1°N of Moon 15 00 Geminid Meteor Shower 18 18:01 Moon at Ascending Node 18 23 Mercury at Superior Conjunction 19 07:22 FIRST QUARTER MOON 20 06:16 Moon at Apogee: 404339 km 21 07:04 Winter Solstice 21 17:26 Mars 2.3°S of Moon 23 08 Ursid Meteor Shower 24 11:13 Pleiades 0.6°S of Moon 27 05:58 FULL MOON 28 13:16 Pollux 2.5°N of Moon 31 03:07 Regulus 1.4°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
2099 Phases 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 (Coordinated Universal Time − 7 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.
2099 Phases of the Moon | |||
Mountain Standard Time | |||
New Moon | First Quarter | Full Moon | Last Quarter |
- | - | Jan 06 18:50 | Jan 13 10:26 |
Jan 21 02:07 | Jan 29 07:38 | Feb 05 05:48 | Feb 11 22:08 |
Feb 19 21:05 | Feb 27 23:13 | Mar 06 15:59 | Mar 13 12:00 |
Mar 21 15:46 A | Mar 29 10:38 | Apr 05 01:37 p | Apr 12 03:47 |
Apr 20 08:30 | Apr 27 18:36 | May 04 10:58 | May 11 21:00 |
May 19 22:16 | May 27 00:16 | Jun 02 20:37 | Jun 10 14:49 |
Jun 18 09:10 | Jun 25 05:00 | Jul 02 07:21 | Jul 10 08:13 |
Jul 17 18:01 | Jul 24 10:09 | Jul 31 19:59 | Aug 09 00:14 |
Aug 16 01:54 | Aug 22 17:01 | Aug 30 10:56 | Sep 07 14:18 |
Sep 14 09:50 T | Sep 21 02:48 | Sep 29 03:45 n | Oct 07 02:21 |
Oct 13 18:32 | Oct 20 16:27 | Oct 28 21:20 | Nov 05 12:42 |
Nov 12 04:29 | Nov 19 10:17 | Nov 27 14:22 | Dec 04 21:46 |
Dec 11 16:09 | Dec 19 07:22 | Dec 27 05:58 | - |
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: 2091 to 2100
The Americas
Below are links to sky event almanacs from 2091 to 2100 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 | 2091 | 2092 | 2093 | 2094 | 2095 | 2096 | 2097 | 2098 | 2099 | 2100 | |||||
AST | 2091 | 2092 | 2093 | 2094 | 2095 | 2096 | 2097 | 2098 | 2099 | 2100 | |||||
EST | 2091 | 2092 | 2093 | 2094 | 2095 | 2096 | 2097 | 2098 | 2099 | 2100 | |||||
CST | 2091 | 2092 | 2093 | 2094 | 2095 | 2096 | 2097 | 2098 | 2099 | 2100 | |||||
MST | 2091 | 2092 | 2093 | 2094 | 2095 | 2096 | 2097 | 2098 | 2099 | 2100 | |||||
PST | 2091 | 2092 | 2093 | 2094 | 2095 | 2096 | 2097 | 2098 | 2099 | 2100 | |||||
AKST | 2091 | 2092 | 2093 | 2094 | 2095 | 2096 | 2097 | 2098 | 2099 | 2100 | |||||
HST | 2091 | 2092 | 2093 | 2094 | 2095 | 2096 | 2097 | 2098 | 2099 | 2100 |
- 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 |
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)