The full moon knowledge

Here we begin our little journey to the full moon. A few words about the fascinating quest of the greater purpose, that includes the full moon circulating through our lives. In layman’s terms and not always scientific (astronomy experts – don’t look too closely!). We would like to wish you illuminating moments. Enjoy!

How do you define a full moon?

A full moon is when the Sun and the Moon are facing opposite, being in opposite direction from an Earth perspective.

This might feel astonishing if one imagines that the Moon is on one side, the Sun on the other and the Earth in between? Shouldn’t the Earth throw a shadow onto the Moon? Bingo – this is exactly what she does! But only when the Moon is exactly on the Earth orbit, the so called “ecliptic”. When this takes place, we speak of a lunar eclipse!

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How long is the interval between two full moons?

The Moon needs 27.33 days to circle around the Earth. Something that is also referred to as “sidereal time”. But because the Earth orbits the Sun, just like the Moon orbits the Earth, the Moon has to travel two further days in order to resume the same position to the Earth and Sun. This is then called the “sidereal time”. In order to determine the point of time of the reoccurring full moon, the sidereal time serves as basis.

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When is full moon in Europe, Asia or America?

The answer is: “everywhere at the same time”. This refers to the so called Universal Time (UT) though, which is used for general astronomical events. We have already learnt that full moon is an astronomical event, where the moon, sun and the earth play a role by being in a specific position. So, full moon takes place at a specific time in the outer space. This point of time is specified by astronomers namely by the Universal Time.

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How long is the full moon?

There are multiple ways of approaching this question. If we look at it from a purely theoretical standpoint, we might be tempted to say that the full moon is infinitely short, since the phases of the moon are changing continuously. The moon is not yet quite full shortly before the full moon, and is already waning shortly afterwards.

However, there is a practical aspect that lets us quantify the full moon as a finite and measurable span of time: Since the Sun is significantly bigger than the Moon, its rays are able to reach just a little over half of the Moon’s surface. This means that the timespan in which the visible side of the Moon’s surface is irradiated (as seen from Earth) is longer than infinitely short.

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And is it all the full moon’s fault?

Whether scientists, astrologers or esoterics, they agree on one thing: the moon influences earth and life on earth. For instance, it regulates the tides through its magnetism. Also continents feel the consequence of this magnetism and either raise or lower their position sometimes up to 26 cm.

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Sex and the full moon?

In nature it is a known fact: for some animal species, mating takes place at full moon. However, the examples that can be found on this subject are rather simple. Full moon serves in some cases indirectly as the cause (for instance through the high water levels during the tides that the horseshoe crab uses to deposit its eggs) or also as the signal for both sexes of a species to begin at the exact same time to safeguard their future existence (a particular type of fly or also corals). It is understood that also wolves are led by full moon when it is time to mate.

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It is said …

… that people are looking for an argument at full moon or are especially happy …

… that if full moon is surrounded by a haze, a person dies …

… that you raise your hat three times to the moon (being a man) or you make a curtsey (being a woman), in order to protect yourself from misfortune until the next full moon …

… that whoever does not chink glasses with full moon at least once, does not deserve any happiness [Greek toast] …

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Information about a lunar eclipse

Easily explained

During a lunar eclipse, the Moon moves through the shadow of the Earth. Which means, that the Earth is positioned quite exactly between the Sun and Moon and casts its shadow onto the Moon. This is only possible at full moon and if some other requirements are met. Depending on whether the moon passes the partial or the core shadow of the Earth, we speak of a partial or total lunar eclipse.

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Let’s go

Let’s begin the New Year 2011 with the opening of the full moon blog. A true innovation to the full moon pages.

For everyone, who is not quite sure what a blog is, let’s say it is a kind of an Internet diary. The word »blog« is an abbreviation of »weblog«, which again derives from »web« (for Internet) and »logbook«, a term used in maritime shipping for recording daily events. Interestingly enough, it is mentioned in WIKIPEDIA that logbooks are of great importance in legal cases involving maritime commercial disputes, and therefore mandatory to be kept and not on a voluntary basis. As blogger (name of someone who writes in a blog), we certainly would not keep this rule, but encourage spontaneous participation and think it should be fun, and whenever possible, we will establish a connection to the full moon.

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The department store John Lewis and the “Man On The Moon”

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The Christmas advertising campaigns of the well known English department store John Lewis, have developed into a yearly tradition since their start in 2007 and have become part of pre-Christmas Internet culture. John Lewis has been awarded the “IPA Effectiveness Award” with its 2012 Christmas campaign. This year, the video called “Man On The Moon” was published – parallel to the Christmas full moon on 25th December 2015.

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The Moon and Mark Twain

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There is a famous quote by the American writer Mark Twain (1835–1910), taken from his satirical travel guide »A Tramp Abroad«, published in 1880: »Everyone is a moon, and has a dark side which he never shows to anybody.« He alludes to the astronomical fact that the Moon only turns one side towards the Earth, due to its synchronous rotation. The reverse side of the Moon remains hidden to us when observed from Earth.

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The Nebra sky disk

This disk, made of bronze and gold, with an age of around 3,600 years, belongs to the oldest find representing astronomical phenomena and thereby depicting planets and stars in the sky. It is thus of great value, because it is evidenced that people of the Bronze Age (2200-800 BC) did not only possess manual skills to create such a refined metal disk, but above all, had the knowledge about astronomical processes. They observed the celestial events with the naked eye and portrayed this in an artistic form.

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“Full Moon Silhouettes” by Mark Gee

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“Full Moon Silhouettes” is an almost 4 minute real time video by the Australian photographer and visual effect artist Mark Gee, where the rise of the full moon is shown, above Mount Victoria lookout in Wellington (New Zealand). You can see an uncut sequence where the Moon rises from the lower right corner above the horizon, and ascends to the left upper side (because this takes place on the southern hemisphere!). The visitors on the lookout are visible as black silhouettes in front of the yellow Moon and its luna maria.

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Magha Puja – the full moon festival in Southeast Asia

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Māgha Pūjā is an important Buddhist holiday that is celebrated in Thailand, Laos, Cambodia, and Sri Lanka, on the day of the full moon, in the third month of the Thai moon calendar, in February/March. The word Māgha refers to month and Pūjā is the honoring. Legend has it that on this day 1,250 monks congregated to meet with Buddha.

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The Google Lunar X-Prize

Google is on everyone’s lips and in our computer oriented world there is probably not a day, where we don’t encounter the name of the US enterprise with its famous search engine in one form or another. We google – this is how the Oxford English Dictionaries have it since 2006.

Google has demonstrated more than once, how to change the world with unconventional ideas. Since 2007, there is a project, which continues this tradition: the »Google Lunar X Prize«.

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Halo and corona

We would like to turn our attention to two interesting types of light apparitions around the Moon: halos and coronas. Both are optical phenomena in the atmosphere that, if looked at from a physical point of view, come about in different ways and also look dissimilar.

A halo (left picture) develops through refracting ice crystals and creates a clearly defined light ring around the Sun or the Moon, whereas the surface between the celestial body and the ring, almost appears to be empty. Light spots, light arches and pillars can also emerge.

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The full moon and the weather

Does the full moon have anything to do with our weather? Does the weather change at full moon or at new moon? Is there actually more or less rain and does the temperature therefore drop or rise? A few questions that everyone has surely heard of in one or the other form …

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The heartbeat of the full moon

We have compared the amount of visitors from our full moon pages with the curve of an electrocardiogram (ECG) and came across an astonishing similarity. It almost appears as if the attention that we humans give to full moon would have its own heartbeat …

It is obvious that the interest in full moon can be linked to its rhythm. The average duration of a moon month is approx. 29.5 days, so a little bit more than four weeks and a little bit less than one calendar month. One can safely say, a lot of people are paying attention to the moon at full moon and clearly a lot less so during the other moon phases.

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