LUNE VENDREDI 27 JUILLET 2018

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Guide to observé the arme à feu Lunar Eclipse nous July 27, 2018

Eclipses space considered ont the most fascinating natural phenomena conditions météorologiques can a été observé to the naked eye. Nous the July 27th 2018, around 9:30 pm (Paris time), thé moon will passage accross auto Earth’s shadow for about 1 hour and 43 minutes. It makes it the longest total lunar eclipse de the 21st century!

When and how observé it? Why does the moon shift its color à orange-red during an eclipse ? how to photograph it ?Find the end in this article all the information that will help you to meilleur understand this rare phenomenon occuring in thé night in between July 27th and July 28th in France et Europe.

Vous lisez ce: Lune vendredi 27 juillet 2018


Total Lunar Eclipse september 28 2015, Credit: guilillume D.


What is a lunar eclipse?

In Astronomy, we can a été observé two types ns eclipses:

A lunar eclipse: it happens when auto Moon is not this time located in front de the Earth but behind it. The Moon is climate eclipsed passant par the Earth’s shadow. In contrast venir a solar eclipse, an eclipse de the Moon deserve to be quickly observed and is harmless parce que le our eyes.

Eclipses, even if it is they are solar jaune lunar, occurs at a specific instants of auto day. Si we look at at auto Earth-Moon-Sun configuration, we notice that a lunar eclipse will seul be visible during thé night vice versa, a solar eclipse can seulement un be spotted at daylight.

Moreover, a lunar eclipse can seul happen at a full moon phase because it is when the Sun, auto Earth and the Moon space closest to an alignement. However there space not constantly perfectly aligned otherwise there will be a lunar eclipse every full moon, every month. At least, two is the le minimum number de lunar eclipses estimated to occur every year. Thé total eclipses are thé rarest and they aller not happen every year.


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Position de the Sun, thé Earth et the Moon during a total lunar eclipse


Different kinds du Lunar eclipses

Although le total eclipses are the most impressive to observe, they room relatively rare. Thé moon never crosses auto shadow ns the earth in the same the same way. In le respect to auto part de the umbra or penumbra where auto moon is shading, conditions météorologiques differentiate 3 types de eclipses:

Penumbral lunar eclipses: auto moon stays seulement un in the penumbral part du the Earth. These eclipses do not pretend to be entirely interesting since it is difficult to notice a solid difference ns brightness in comparison de a traditionnal complete moon.Total lunar eclipses: the whole disk du the moon dives in auto Earth’s shadow jaune ‘umbra’. Thé moon is not completely le noir but reflect année intense and peculiar orange color, visible to thé naked eye. Auto brightness du the Moon is so meugler that stars at the background are also visible! amie can find année explanation du why thé moon has actually this shade below.The total lunar eclipse de July 27th, step passant par step

A total eclipse is no instantaneous. In other words, in order the whole surface ns the Moon venir cross auto Earth’s shadow, there have to be a series du phases in which thé Umbra shades progressively thé Moon until ce reaches auto lowest brightness. This phases or steps are actually corresponding venir the le3 types de lunar eclipses currently mentionned: thé Moon tons goes into thé penumbral (penumbral eclipse) 보다 shades slowly in the Earth’s zero (partial eclipse) and finally becomes totally hidden in the Umbral (total eclipse).

Below are listed thé different steps of the arme à feu lunar eclipse de July 27th 2018, given in Paris temps zone:

The complete moon will rise at auto East horizon approximately 9:30 pm. However, thé eclipse will ont already started two hours prior marqué the totality phase will begin at auto same time auto moon will rise.

9:30 pm: Beginning du the arme à feu lunar eclipse. Thé moon shows up orange and is really dim. Conditions météorologiques a ordinaire day, thé rising moon is likewise orange because auto atmosphere scatters the colors to keep seul the orange one. Cible here, the moon will likewise be orange because de the total eclipse.10:21 pm: hautement of the total eclipse. Ce is at this instants that auto Moon get its minimum brightness in thé sky et its strongest coppery hue.

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11:13 pm: End of the total eclipse. Beginning ns the partial eclipse. The Moon loses its coppery shade in order venir become gradually white. Thé Moon is still in the shadow du the Earth marqué recovers its usual brightness et color.12:20 pm: End ns the partial eclipse. Beginning du the penumbral eclipse. Auto moon looks like a usual full moon. A d’image can help you meilleur notice a possible darker part nous the moon.1:30 être (July 28th, 2018): End de the penumbral eclipse and end de the lunar eclipse. Thé moon becomes nothing cible a facile full moon.

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Why is thé Moon orange throughout a le total eclipse ?

During année eclipse, nous saw that thé shadow du our world is projected onto auto surface of the Moon. This shadow would be completely couleur noire if the earth did not oui any atmosphere. In fact, thé edge du the terre is marked out de our atmosphere. The irradiate coming from auto Sun is absorbed de a thick atmospheric layer composed de particules de air, water et more. Due to the fact that these particles scatter blue light, castle aborb this shade from auto sunlight venir let the others escaping ont a filter. Auto result is that si you remove the blue color, you comprendre a quite orange hue.


Blue et purple déshabiller caused de ozone atmospheric scattering. Credit: guillaume D.


The Moon it s okay this color more jaune less accentuated according to auto thickness and the density du the setting at the moment of auto eclipse. Moreover, as the atmopheric class don’t ont the very same composition, ce is even faisabilité to see différent grading couleurs right avant or right after the totality. The la peinture above spectacles blue et purple strips nous one side du the moon caused par the light aborption taking carré in thé ozone layer.

How to observe and capture thé total eclipse ?

A total lunar eclipse can be observed without any type of protection, since cette is merely a full moon plunged into the shadow ns the Earth. Consequently, there is ne sont pas risk venir harm our eyes, unequal solar eclipses which require thé use ns suitable filters.

Thus, a lunar eclipse have the right to be it was observed with the naked eye, ont well ont with a pair de binoculars, a refractor or a telescope. Over there is no a method du observation meilleur than others. Parce que le example, spring at auto total eclipse v our very own eyes lets nous see the stars in thé background sky oui the moon is obtaining into auto shadow. De course, tu will also be able à see the orange color of the moon. In another way, a telescope allows tu to admire in detail thé surface de the moon totally tinged through shades ns orange et red.

In order venir photograph auto lunar eclipse, three methods can be adopted according to thé equipment amie have:

If you ont a wide angle camera (no zoom), amie will no be may be to comprendre a close-up view de the moon. However, elle will oui the possibility to capturer the landscape surrounding auto moon: starry sky and landscapes in the foreground. A tripod is extremely recommended venir stabilize your caméra in order to take longue exposure pictures.If you oui a camera v a zoom lens (200mm, 300mm … etc), tu can importer amazing close-up views ns the moon. Elle will also need a tripod. Auto most significativement thing is to manually select a short exposure temps to avoid having actually motion blur caused passant par the motion of the moon and the Earth.Typically, année exposure time de less 보다 2 seconds with a zoom lentille of 300 mm should it is in a great showcase.

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You are now prêt to attend the le total lunar eclipse du July 27th! Feel free venir share with nous your many beautiful pictures of this event. They might be selected to appear in a distinct dedicated article on our website.