Astronomical Calendar May 2021 - Total Lunar Eclipse on May 26!

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Astronomical Calendar May 2021. (Dorian’s Secrets: Astrology, Cosmos, Stars, Astros, Tarot, Horoscopes, Mysteries, Influences, Curiosities… Connect your mind with the Universe, Learn today with Dorian.)

Astronomical Calendar May 2021

May 3:

The Moon in Last Quarter phase at 19:51 UTC.

May 4:

Conjunction of the Moon and Saturn before sunrise in a Southeastern direction. Maximum approach at 20:00 UTC (day 3). Magnitude of Saturn of +0.7.

May 5:

Conjunction of the Moon and Jupiter before sunrise in a Southeastern direction. Maximum approach at 01:00 UTC. Magnitude of -2.2.

May 5:

The Eta Aquarids Meteor Shower reaches its maximum activity at 19:00 UTC. The meteors originate from a debris field left behind by Halley’s Comet. Meteors are fast and bright; during the maximum up to 40 meteors per hour are expected. This shower favors observers near the tropics and the Southern Hemisphere. Better viewing conditions during the hours before sunrise.

May 11:

New Moon at 19:00 UTC.

May 11:

The Moon at Apogee (furthest point from Earth) at 22:00 UTC. Distance of 406,512 kilometers; 29.4 ‘angular size.

May 13:

Conjunction of the Moon and Mercury at sunset in a Northwest direction. Maximum approach at 20:00 UTC. Mercury magnitude of +0.1.

May 15:

Conjunction of the Moon and Mars at dusk in a Northwest direction. Maximum approach at 06:00 UTC (day 16). Magnitude of Mars of +1.7.

May 16:

Conjunction of the Moon, Pollux and Castor at dusk in a western direction. Maximum approach between the Moon and Castor at 20:00 UTC; between the Moon and Pollux at 01:00 UTC (day 17). Magnitudes: Pollux +1.2; Castor +1.6.

May 17:

Mercury at its maximum elongation at 06:00 UTC. Magnitude of +0.5. The planet is visible at dusk in a northwesterly direction.

May 19:

The Moon in Crescent Phase 19:12 UTC.

May 19:

Conjunction of the Moon and the star Regulus at dusk in a southwesterly direction. Maximum approach at 22:00 UTC. Regulus magnitude of +1.4.

May 23:

Conjunction of the Moon and the star Spica at dusk in a southerly direction. Maximum approach at 19:00 UTC. Spica magnitude of +1.0.

May 26:

Full moon in Perigee (Supermoon). This will be the largest and brightest full moon in 2021. The full moon will occur at 11:14 UTC; Perigee (closest point to Earth) at 01:46 UTC. Distance of 357,311 kilometers; 33.4 ‘angular size.

May 26:

Total lunar eclipse. The total phase begins at 11:00 and ends at 11:26 UTC (maximum phase at 11:20 UTC). The partial phase begins at 09:45 and concludes at 12:52 UTC. During totality, the full Moon will turn reddish-orange. The beginning and conclusion of the total phase can be observed from the entire American continent (except eastern Brazil, where the Moon will hide just at the beginning of the total phase). The full phase can also be seen from East Asia. All phases of the eclipse will be observed from Oceania and the Pacific Ocean. In America the eclipse will be observed during the early morning of the 26th, before dawn when the Moon approaches the western horizon to set; while in East Asia and Oceania the eclipse will be observed at dusk, also on the 26th, during the Moonrise. From Europe, Africa and western Asia you will not be able to observe any of the phases of the eclipse.

May 27:

Conjunction of the Moon and the star Antares at dusk in a Southeastern direction. Maximum approach at 20:00 UTC. Antares magnitude of +1.1.

May 31:

Conjunction of the Moon and Saturn before sunrise in a Southeastern direction. Magnitude of Saturn of +0.6. Maximum approach at 04:00 UTC.


Definition of UTC (Coordinated Universal Time):

Coordinated Universal Time or UTC (an intermediate between the English version Coordinated Universal Time CUT and the French version Temps universel coordonné TUC) is the main time standard by which the world regulates clocks and time.

It is one of several closely related successors to Greenwich Mean Time (GMT). For most common purposes, UTC is synonymous with GMT, as GMT is no longer the defined standard for the scientific community.

Definition of Conjunction in Astronomy:

Two stars are in conjunction when observed from a third (generally the Earth) are at the same celestial longitude. As the celestial latitude may be different, the stars are very close in the sky, although they do not coincide, passing one above the other. The conjunction is one of the main aspects of the planets. It is also applicable to any celestial object that is visually located next to another.

Definition of Perigee in Astronomy:

It is called perigee (from the Greek adjective περίγειος) to the point of the elliptical orbit that a natural or artificial body travels around the Earth, in which said body is closer to its center. In perigee the orbital speed is the maximum of the entire orbit.

Definition of Apogee in Astronomy:

Apogee (from the Greek ἀπό ‘apart, away from’ and γεω- ‘terrestrial, relative to planet Earth’) is the point in an elliptical orbit around the Earth at which a body is farthest from the center of the Earth. The opposite orbital point, the closest one, is called perigee.

Definition of Equinox:

The equinoxes (from the Latin aequinoctium (aequus nocte), “equal night”) are the times of the year when the Sun is located in the plane of the celestial equator. On that day and for an observer on the Earth’s equator, the Sun reaches its zenith (the highest point in the sky in relation to the observer, which is just above his head, that is, at 90 °). The declination parallel of the Sun and the celestial equator then coincide.

It occurs twice a year: between March 19 and 21 and between September 21 and 24 of each year.

As its name indicates, on the dates when the equinoxes occur, the day lasts approximately equal to that of the night at the equator and in the latitudes close to it.

The equinoxes are used to set the onset of spring and fall in each earth’s hemisphere.

What is a Meteor Shower?

A meteor shower is a celestial event in which the irradiation of various meteors is observed from one point in the night sky. These meteors are caused by streams of cosmic debris called meteoroids that enter Earth’s atmosphere at extremely high speeds in parallel paths. Most meteors are smaller than a grain of sand, so almost all of them disintegrate and never reach the Earth’s surface. Very intense or unusual meteor showers are known as meteor bursts and meteor storms, which produce at least 1,000 meteors per hour, mostly from the Leonids. The Meteor Data Center lists more than 900 possible meteor showers, of which about 100 are well established. Several organizations point to Internet viewing opportunities. NASA maintains a daily map of active meteor showers.

What are the Moon Phases?

The lunar phases (also phases of the Moon) are the apparent changes of the visible illuminated portion of the satellite, due to its change in position with respect to the Earth and the Sun. The complete cycle, called lunation, is 29.53 days, during which the moon passes the new moon, its visible illuminated portion gradually increases again, and two weeks later, the full moon occurs and, around the following two weeks, it decreases again and the satellite enters the new phase again .

Finally, a perfect alignment between the Sun, the Earth and the Moon occurs, which results in eclipses. A solar eclipse occurs when the Moon passes in front of the solar disk, and can only occur on a new Moon, while a lunar eclipse occurs when the Moon passes through the Earth’s shadow, which can only occur on a full Moon. This transition between phases has been used to measure time, which is why many lunar calendars were created based on the lunar cycle (moon phase). The moon actually takes eighteen days and it happens because the sun and the Earth align with each other, having said that the moon is forming.

How does each Astronomical Phenomenon influence the life of the Zodiacal Signs?

See Prediction by Dorian:

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Astronomical Calendar May 2021. (Dorian’s Secrets: Astrology, Cosmos, Stars, Astros, Tarot, Horoscopes, Mysteries, Influences, Curiosities… Connect your mind with the Universe, Learn today with Dorian.)


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