• Le 9 Mai 2016, à 12h12 pour Greenwich, renforçant son message dans un transit rare, Mercure passe devant le Soleil


    Le 9 Mai 2016, à 12h12 pour Greenwich, renforçant son message dans un transit rare, Mercure passe devant le Soleil

    Le 9 Mai 2016, à 12h12 pour Greenwich, renforçant son message, Mercure passe devant le Soleil

    Cette conjonction SOleil Mercure se situe entre le 18 degre taureau UNE FEMME SECOUE UN VIEUX SAC PAR LA FENETRE DE SA CHAMBRE et le 19° Taureau, Un nouveau continent émerge de l'océan
    Mercure , le mental secoue ses vielles idées périmées sur notre rapport à la matérialisation , les enflamme pour faire émerger la créativité mentale d'une nouvelle conscience

    Le Taureau est très puissant lors de ce nouveau cycle lunaire !
    et Venus domine le ciel de cette carte astrale mercurienne  qui avec un ascendant Lion nous parle du coeur et de l'amour ...Mettre nos materialisations terrestre au service de l'amour et de l'art , et de l'education ( pas celle qui n'interesse plus personne )
    On brule le passé pour nous mettre au service d'un amour puissant pour la Terre Mère ...ca urge! Il y a un gros paquet de retrogradations sous l'horizon qui vise la Lune conjointe à chaos en gemeaux sur l'horizon en maison 11 ...la maison 11 de notre patate celeste est aussi à l'honneur ..tout est dans tout ....
     L'echange tonique comme outil de progression pour sortir de la tradition dans les relations humaines et principalement avec les jeunes, Lune en gémeaux le jour de cette conjonction mercurienne , conjointe à chaos !


    Rare transit of Mercury to take place on 9 May

    Last Updated on Wednesday, 27 April 2016 13:37
    Published on Wednesday, 27 April 2016 13:37

    On 9 May there will be a rare transit of Mercury, when the smallest planet in our Solar System will pass directly between the Earth and the Sun. The last time this happened was in 2006, and the next two occasions will be in 2019 and 2032. During the transit, which takes place in the afternoon and early evening in the UK, Mercury will appear as a dark silhouetted disk against the bright surface of the Sun.

    The transit of Mercury of November 2006. Mercury appears as a small circle in the lower half of the image, and has quite a different appearance to the sunspot groups on the right and left hand limbs of the Sun. Credit: TheBrockenInAGlory. Click for a full size image


























    From the UK the transit begins at 1112 GMT (1212 BST), when the limb of Mercury appears to touch the limb of the Sun, and ends at 1842 GMT (1942 BST) when the limb of the silhouetted planet appears to leave the Sun. Observers in different locations will see the transit taking place at a slightly different time, as the planet will appear to take a slightly different path across the Sun.

    The entire event is visible from most of Western Europe, the western part of North and West Africa, the eastern part of North America and most of South America. Most of the transit (either ending with sunset or starting at sunrise) will be visible from the rest of North and South America, the eastern half of the Pacific, the rest of Africa and most of Asia. Observers in eastern Asia, south-eastern Asia and Australasia will not be able to see the transit.

    tm2016-Fig02a smallA map of the global visibility of the transit of Mercury of 9 May 2016. Most of Western Europe, including the UK, is well placed to observe the event this time. Credit: F. Espenak / eclipsewise.com. Click for a full size imageMercury completes each orbit around the Sun every 88 days, and passes between the Earth and Sun every 116 days. As the orbit of Mercury around the Sun is tilted compared with the orbit of the Earth around the Sun, the planet normally appears to pass above or below our nearest star. A transit can only take place when the Earth, Mercury and the Sun are exactly in line in three dimensions.

    There are 13 or 14 transits of Mercury each century, so they are comparatively rare events, though each one can typically be seen over a large area of the Earth’s surface. A transit was first seen in 1631, two decades after the invention of the telescope, by French astronomer Pierre Gassendi. The most recent transit of Mercury visible in the UK was in 2003 (the 2006 event was visible in the western hemisphere), which was followed by even rarer transits of Venus in 2004 and 2012.

    At any time, Mercury blocks out no more than a tiny part of the light from the Sun. This means that the event should NOT be viewed with the unaided eye. Looking at the Sun without appropriate protection, either during the transit, or at any other time, can cause serious and permanent damage to the eyes.

    Astronomical societies have produced online guides on how to safely view the transit, for example by projecting the solar image with binoculars or a telescope. Mercury is too small to be visible using the pinhole projectors that worked successfully in the solar eclipse in March last year.

    On the morning of 9 May, UK amateur astronomical societies and public observatories will be running events where members of the public can safely enjoy the transit. The Royal Astronomical Society will be running a (free) event outside our headquarters in the courtyard of Burlington House, central London, where members of the public can come and view the transit using appropriate equipment at no cost.

    Observers with access to a moderate-sized telescope with an appropriate safe filter should be able to see Mercury as a dark disk, comparable in apparent size to a sunspot, but somewhat darker. At the beginning and end of the transit, when Mercury’s limb is close to the edge of the Sun, it may also be possible to see the 'black drop' effect, where a broad line appears to connect the planet to the solar limb. This is thought to result from the quality of the telescope in use, and turbulence in the Earth’s atmosphere (so-called 'seeing'), and has in the past compromised efforts to record transit times.

    Professor Martin Barstow, President of the Royal Astronomical Society, is keen for people to experience the transit for themselves: "It is always exciting to see rare astronomical phenomena, such as this transit of Mercury.  They show that astronomy is a science that is accessible to everyone, and I would encourage you to take a look if the weather is clear… but do follow the safety advice!"

    As it is so close to the Sun, Mercury is difficult to study in detail using telescopes on Earth. Two NASA space probes have visited Mercury, Mariner 10 in 1974 and 1975, and MESSENGER, which orbited the planet from 2011 until a deliberate crash landing in 2015. The European Space Agency mission BepiColombo will launch next year, and is expected to study the planet from 2024 onwards. (UK scientists are making a significant contribution to this project.)

    Transit techniques are also deployed outside our Solar system, and missions like Kepler have used it to confirm the presence of more than 1,000 planets in orbit around other stars. The same technique will be used by the European Space Agency’s PLATO mission, expected to launch in 2024.


    Media contacts


    Dr Robert Massey
    Deputy Executive Director
    Royal Astronomical Society
    Tel: +44 (0)20 7292 3979
    Mob: +44 (0)7802 877 699

    Dr Sheila Kanani
    Education, Outreach and Diversity Officer
    Royal Astronomical Society
    Mob: +44 (0)794 730 8616

    Miss Clare McLoughlin
    Education, Outreach and Diversity Officer
    Royal Astronomical Society
    Tel: +44 (0)20 7292 3962
    Mob: +44 (0)7802 877 698

    Dr Sam Lindsay
    Royal Astronomical Society
    Tel: +44 (0)20 7292 3976
    Mob: +44 (0)7986 196 178

    Dr Morgan Hollis
    Royal Astronomical Society
    Tel: +44 (0)20 7292 3977


    Further information




    Notes for editors


    The Royal Astronomical Society (RAS), founded in 1820, encourages and promotes the study of astronomy, solar-system science, geophysics and closely related branches of science. The RAS organizes scientific meetings, publishes international research and review journals, recognizes outstanding achievements by the award of medals and prizes, maintains an extensive library, supports education through grants and outreach activities and represents UK astronomy nationally and internationally. Its more than 3900 members (Fellows), a third based overseas, include scientific researchers in universities, observatories and laboratories as well as historians of astronomy and others. Follow the RAS on Twitter

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