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SOIRÉE SPÉCIALE "Eclipse de LUNE" in Lyon

Hosted by the Consul of the Lyon Professional Networking Group
Event Cover Photo
Took place 2 months ago
Fri 27 Jul 20:00 - 23:30

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Eclipse de lune
vendredi 20 juillet Protected content
Venez nous rejoindre sur l’esplanade de Fourvière à Lyon le vendredi 27 juillet Protected content partir de 20h00 pour observer une éclipse totale de Lune !

Ce belvédère qui en plus de sa vue magnifique sur Lyon a un horizon dégagé pour observer à 21h12 le levé de la Lune déjà en partie éclipsée. Puis nous pourrons suivre toute la totalité à mesure que la Lune monte lentement dans le ciel jusqu’à minuit.

Les bénévoles du Cala seront présents pour partager avec vous cet évènement et vous le faire observer dans des lunettes et télescopes.

Voila les éphémérides pour Lyon en heure locale :

(1)

Phase Horaire (Lyon) Hauteur
Lever 21h 11m 53s 0°
Début totalité 21h 30m 15s 3°
Maximum de l’éclipse 22h 21m 44s 10°
Fin totalité 23h 13m 12s 16°
Fin phase partielle 00h 19m 00s 22°
A noter qu’il s’agit de la plus longue éclipse de Lune du XXIe siècle :la phase de totalité dure Protected content !

Enfin vous vous demandez pourquoi la Lune semble rouge brique lors d"une éclipse ? C’est du à l’atmosphère de la Terre qui dévie plus les rayons rouges de la lumière du Soleil que que les autres couleurs vers l’intérieur du cône d’ombre. La Lune reçoit donc surtout de la lumière rouge mais elle retrouve sa teinte blanche sur la partie non éclipsée durant la phase partielle. Et ne pas oublier de jeter un œil à Mars, rouge aussi mais c’est sa couleur "naturelle" et qui se lèvera un peu plus tard.

Accès libre et gratuit, annulation en cas de mauvais temps...

LOOK UP! MARS IS BRIGHTER THIS MONTH THAN IT HAS BEEN IN 15 YEARS

If you have noticed a particularly bright red star shining in the night sky recently, take another look. That "star" is actually Mars, and its about to be bigger and brighter than it has been in 15 years.

Mars opposition is taking place on July 27, which is when Earth passes in between Mars and the sun, putting the two planets near their closest points to each other. The Red Planet will be brilliant in the sky, brighter than Jupiter (which is usually the second brightest planet after Venus) between July 7 and September 7, but it will be particularly spectacular on July 27, according to EarthSky.

According to NASA, a Mars opposition occurs every 26 months, but every 15 to 17 years the opposition occurs near Mars' perihelion—the point when the planet's orbit is closest to the sun, making it even brighter in the sky when viewed from Earth. The last time a Mars opposition lined up with a Mars perihelion was in Protected content , when Mars was at its brightest in the sky in roughly 60,000 years.

However, it will have to compete with the moon for stargazers' attention, because July 27 will also feature a total lunar eclipse that will last for a remarkable Protected content it the longest total lunar eclipse of the 21st century. However, the eclipse will only be visible in parts of Australia, Asia, Africa, Europe, and South America (though a full moon will join the brightly shining Mars in the sky for the rest of the world, and Saturn will be visible as well). A total lunar eclipse occurs when the moon passes through Earth’s shadow, at which point it takes on a reddish tint, giving it the nickname "blood moon."

This month's Mars opposition will not be quite as bright as Protected content , but it will be close. Because Earth is closer to the sun than Mars, it orbits the sun about twice as fast. Every 26 months, Earth passes Mars in just the right position to transit across the face of the sun from the perspective of Mars. At this point, known as opposition, Mars is not only very close to Earth, but also bathed in direct sunlight from our perspective, making the Red Planet spectacularly bright. Mars will be a mere 35.8 million miles away when it reaches its closest point to Earth this time around.

Mars will reach its highest point around midnight on the night of July 27 and morning of July 28. The Red Planet's next close approach to the Earth will take place on October 6, Protected content .