January 17, 2022

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The eruption of the process increased the brightness of the comet Leonard

This year’s brightest comet Leonard went very close to Venus on December 17th. Let’s watch it again this evening at dusk. A scene back in these next few days before leaving our solar system forever.

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[EN VIDÉO] Understanding the comet Leonard in a minute
When comet Leonard crosses the night sky at the end of 2021, he orbits the Earth and approaches the Sun.

Update December 20, 2021

Innumerable Astronomers Activists around the world a Startling Function earned comet Leonard suddenly to him Brightness These last few hours. Her Size According to the evidence he would have climbed continuously until the third (or second). On December 20, in the early morning, the star Spreads It was very easy to seeEye Naked (see article below to find out his position in the sky today Twilight)

This increase in its activity is in line with its approach சோலைல் (Perihelion January 3). Its core ice and dust weaken under extreme temperatures and impact Solar wind. Hope it doesn’t break in the next few days.

On December 12, the comet Leonard (C / 2021 A1) was closest to Friday, December 17, after passing 35 million kilometers anyway – close to Earth. It grazed about 4.2 million kilometers away, making it the closest visit to human memory from history to our beloved neighbor from the comet! If we were on Venus and her sky was clear, there is no doubt that the scene would have amazed us.

Unusual images of the comet Leonard seen in the atmosphere of the earth where the auroras dance. Shooters are visible as they sink into the atmosphere and satellites pass by in the distance. © CNSA, origin.space

Anyway, when viewed from Earth, this is pretty much it: roughly we can see comet Many Earthlings Nickname ” Evening star After sunset. However, to get a chance to discover this year’s brightest comet, you have to wait for the burning twilight lights to fade a bit. Its luminosity is at its peak these days (as seen from Earth), with a magnitude of +4. Theoretically visible to the naked eye, TheStar With a pair of telescopes, and of course, a telescope or Telescope If you have one.

Where is the comet Leonard?

It’s not so hard to find, it goes down to the brightest star in the sky – then நிலா And the sun -, Friday Of course (size -4.6).

Tonight, December 17, C / 2021 A1 (Leonard) will be southwest, low on the horizon (look for a clear spot to notice it).

On December 18, the comet Leonard will still be near Venus, but to its left or east (see image above) is the brightest star. The comet is yet to be seen.

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On December 19, C / 2021 A1 (Leonard) continues to take off, overtaking Venus in the sky. Still in Sagittarius, she will soon enter small Constellation From Microscope. As the terrain slides more and more over the horizon, its visibility becomes harder.

Very fast, the comet will remain dark for the next two weeks சோலைல் January 3, 2022, perihelion date, point Around the circular path Very close to our star. It is exactly one year since Gregory Leonard was discovered. Then it will be much harder to notice. As for seeing her again, it all means that it will never be possible again, because she will be expelled from us. The Solar System.

The comet Leonard will be visible in the evening, and this will be the last time we see it

By article Xavier Dimmersman Released December 15, 2021

Comet Leonard: Remember its name, because it will be spoken until December and the beginning of 2022. Discovered a year ago, it promises to be the comet of the year! How, when and where should this be noticed?

C / 2021 A1 (Leonard), or more simply, the comet Leonard, looks very promising to be seen with the naked eye in the days to come. Came from The edge of the solar system, The star is now orbiting near and (almost) the dual planets Earth and Venus.

Its smallest distance with our planet is this Sunday, December 12 at 1:52 pm UT precisely at 2:52 pm Paris time, when it was about 35 million kilometers away, so there is no danger to us. , Terrence. A few days later, on December 17-18, it will return Friday Welcome it to its surroundings and touch it this time because it will only cross four million kilometers from its surface! We did not dare to imagine the view from there.

Comets are like cats, both have tails and both do what they want

Then, the comet will continue on its way to its perihelion, the point of its orbit closest to the Sun, which will reach on January 3, 2022, according to astronomer Gregory J. Exactly one year after Leonard’s discovery – he’s got him naturally. Given its name – to the Mount Lemon Laboratory. C / 2021 A1 will travel 92 million kilometers from our star (i.e. 60% of the distance between the Earth and the Sun), which is a lot, so it reduces the risk of decay. Although it is not ruled out that this will happen; It naturally depends on the combination of snow and dust at its center. When a comet passes through the hottest part of the solar system it is always at high risk of breaking. We hope this does not happen so that one can make the best use of the view of the sky in the morning and later in the evening. Because this will be the last time it passes here: researchers believe that by its speed, it will be ejected from our solar system in a few thousand years. “This is the last time I see her” Gregory Leonard promises (researcher Lunar and Planetary Laboratory From the University of Arizona), which Remember Goes beyond how unpredictable comets are: “A brilliant and famous comet inventor once said: ‘Comets are like cats, they both have tails and both do what they want”! “.

Where is the comet Leonard?

Experts predict that the comet Leonard will be below the size 6 bar (below the visible range of a star) for several days, and can flirt with size 4 thanks to the fact that it went as close as possible to Earth. Everything indicates that its brightness will peak between December 11 and 13 (when viewed from Earth, always). However, is it clear in the sky? The answer is yes under certain conditions because it will soon disappear from the morning sky and emerge in the evening one. Because a star is so pervasive – not at the right time as a star or a planet – it is not easy to distinguish it with the naked eye. To do this, it is important to know your situation well and to double your focus. To maximize the chances of admiring it, it is strongly recommended to bring a pair of telescopes or more collectors. Light (Telescope or refracting telescope), if you have one (or know someone who owns one). After that you can enjoy the beauty of its centerpiece Gas, Its hair and long tail extending between the planets facing the sun.

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For weeks now, the comet has been followed by many amateur astronomers around the world Social Websites Photos of their hunt. Among the most beautiful and spectacular C / 2021 A1 galaxies displayed in front of, located in the background, millionsLight years Of the earth. Most recently, on December 3, the comet Leonard approachedSpherical cluster Messier 3 (M3). Apparently of course, because M3 is actually 35,000 light years away from us, and the comet.

The Leonard comet is visible at dusk

In early December, the comet Leonard appears high in the sky in the second half of the nightDawn, Passes Dogs de Chasse au Bouvier, southeast. Its high velocity (254,000 km / h) transcends the celestial body (which seems to us to be stable) with much improvement compared to “fixed” stars. At night, the star loses altitude in the sky and approaches the horizon as it advances towards Earth. On December 9th, he entered the constellation Sarpentarius and will soon disappear from the morning sky (before dawn on December 13th) to slide into the evening sky on December 14th. Then it will be in front of the Milky Way. But you should look for it in the twilight lights just below the southwest horizon.

On the evening of December 16, you can enjoy it in front of Sagittarius. On December 17th and 18th, near the glow Friday. Opportunity to remember these beautiful garlandsWinter With will be enhanced by the alignment of our neighbors Saturn And Thursday. Also included Geminites, Very beautiful rainComets The comet is the peak activity of the year corresponding to the night at the shortest distance from Earth.

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So, I can not recommend enough of you to go out and enjoy these beautiful sky shows in the heart of the longest nights of the year. By turning From, As always, at Light impurity, To enjoy all the stuff that fills the darkness. Comet Leonard will undoubtedly be this year’s comet, and if its brightness continues to increase as advertised, you will have to wait 35,000 years to see it again if you miss it (according to its estimates). Orbital period)

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