2023-11-08 21:36:50
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[EN VIDÉO] Discover Venus, the one also called the Shepherd’s Star This planet which bears the name of the goddess of beauty still has…
This Thursday, November 9, 2023, it will occur in the skies of Europe – as in that of part of Russia, Greenland, Africa and Asia -, a not so common phenomenon. The Moon will then pass in front of VenusVenus. Astronomers astronomers speak of lunar occultation. The last time it happened over France was in June 2020. The next time it will be in September 2025.
The Moon will hide Venus from us
That night, the Moon, only six days after the new Moon and therefore at a little more than 15% of its maximum luminosity, will slowly approach the planet Venus as soon as the planet rises, about two hours before the Sunrise. To watch the spectacle, you will need to plan for a clear horizon on the side of the constellation Virgo, towards the south-southwest. Everything will be visible to the naked eye. But a pair of binoculars placed on a tripod or a small telescope or telescope type instrument will make things a little more spectacular.
The tip will finally be given in broad daylight between around 10:50 a.m. and until 11:15 a.m. depending on where you are in France, from Lille to Bayonne or Perpignan. And it will take the crescent of Venus — a large crescent of 58 percent of the planet’s full disk — some 90 seconds to completely disappear behind the crescent Moon. The planet will then reappear on the other side more or less an hour later.
How does an eclipse work? Franck Menant explains everything to you in our Futura dans les Étoiles podcast.
The lunar occultation of Venus will not be visible everywhere
Remember that, even if the Moon and Venus will seem very close during this occultation, the first will be some 396,000 kilometers from the Earth while the second will be located around 122 million kilometers! And it is precisely this difference in distance between the two stars which means that the phenomenon will not be visible from everywhere on our Planet. Because depending on where you are, the position of the Moon will be very different in the sky. That of Venus, less so.
Venus will disappear for an hour on June 19
This Friday, June 19, the two stars closest to the Earth, the Moon and Venus, meet in the clarity of the sky in broad daylight. Seen from our planet, the larger one will devour the smaller one and redigest it an hour later. A beautiful phenomenon that can be observed with the naked eye or with an instrument, while carefully avoiding looking at the SunSun.
Article by Xavier DemeersmanXavier Demeersman published on 18/06/2020
You may not have noticed, but the one we nicknamed the “Shepherd’s Star” recently disappeared from the sky in the evening. It’s normal, the Earth, Venus and the Sun were aligned a few days ago. Our neighbor was therefore not visible neither in the evening nor in the morning because she was hidden below the dazzling solar star.
However, Venus will really disappear tomorrow morning for an hour. Disappear is a big word because it is an occultation. Seen from the Northern Hemisphere of the Earth, the Moon will pass in front of it. In Europe and mainland France, this rather rare spectacle will only be visible in broad daylight, early in the morning. Of course, times vary depending on latitudelatitudes. In Paris, for example, the meeting will begin at 7:39 a.m. UT, or 9:39 a.m. local time, when the dark part of Venus will be nibbled away by the reliefs of the luminous limb of the Moon. You will then have to wait until 8:36 a.m. UT, or 10:36 a.m. Paris time, to see the second planet of the Solar SystemSolar System again.
Observe the occultation of Venus
Many people don’t know it, but the very bright Venus (magnitudemagnitude -4) can be observed in broad daylight. However, it is essential to avoid the Sun and not to look at it while searching for the planet with a pair of binoculars or a telescope. The damage would be irreversible to your eyes.
This Friday, June 19, our star will be more than 20° east of the Moon-Venus duo. If the earth’s atmosphere were not there, we could see that the protagonists of this celestial ball are all in Taurus. The Sun above a horn of the constellation (it will enter Gemini on the 21st) and the Moon, which engulfs Venus, is silhouetted between the head of the animal, formed from the stars of HyadesHyades, and the PleiadesPléiades.
Two days before the new Moon, our only natural satellite will display a very thin crescent: only 4% of its surface (as seen from Earth) will be illuminated. As for the beautiful Venus, with 8% of her disk bathed in light, she also has two very fine horns.
The occultation of Venus by the Moon will be even more beautiful through a pair of binoculars, a telescope or a telescope. You will then be able to admire the penumbra that covers the rest of the lunar disk, a phenomenon that is nicely called “ash light”.
After this event, contemplating Venus in the absence of the Sun will again be possible but you will have to get up before the solar star. For several weeks, the planet returns to the morning sky.
An annular solar eclipse on June 21
For the Moon, another meeting awaits it very soon: the Sun. A beautiful annular solar eclipse will take place this June 21. The ring of fire will be visible along an arc from the Democratic Republic of Congo to the Pacific Ocean, passing through Tibet. The best place to admire the spectacle (almost 99% of the Sun hidden) is near the border between India, Tibet and Nepal.
Article by Jean-Baptiste Feldmann published on November 27, 2008
It’s a rare spectacle that the sky will offer us on Monday, December 1: for nearly an hour and a half the Moon will pass in front of the planet Venus. A phenomenon that everyone can admire with the naked eye.
In its daily movement, the Moon sweeps across a significant band of sky, thus allowing it to regularly mask a few stars, and much more rarely a planet.
This will be the case on Monday, December 1: around 5 p.m. local time, as the Sun slides over the western horizon, we will be able to see the bright point of Venus stuck to the Moon “go out” in a few seconds, then reappear from there. the other side about 1 hour 30 minutes later.
The spectacle will be enhanced by the presence of the ashen light which will illuminate the rest of the lunar disk, with the added benefit of a planetary rapprochement, since JupiterJupiter will not be far away!
Photographers will be able to have fun: their camera mounted on a stand to avoid the risk of movement, they will be able to explore different exposure times and different focal lengths to compose beautiful twilight scenes. Their images will be welcome in the astronomy forumwhere enthusiasts will make you experience this rare moment, hoping for good weather.
A phenomenon to savor without moderation, knowing that the next occultation of Venus by the Moon will not take place before April 6, 2016…
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