"Of course, our knowledge of red supergiants remains incomplete, and this is still a work in progress, so a surprise can still happen.". Want an ad-free experience?Subscribe to Independent Premium. The red super giant, which is part of the constellation Orion, has been dimming since 2019, but is also changing shape. They have now revealed a stunning new image of the star's surface. Samsung temporarily shuts down a factory in South Korea due to Coronavirus. Betelgeuse – a red supergiant that can be seen in the constellation Orion – has historically been one of the sky's brightest stars. in Syndication. Our journalists will try to respond by joining the threads when they can to create a true meeting of independent Premium. These periodic changes are nowhere near as extreme as the changes the star has recently undergone, however. This video below shows the star Betelgeuse before and after its unprecedented dimming.
Stay tuned with our weekly recap of what’s hot & cool by our CEO Boris. Astronomers have observed the ever dimming surface of Betelguese with the aid of the ESO’s Very Large Telescope (VLT). The SPHERE image shows Betelgeuse’s visible surface, which has a size close to the orbit of Jupiter, in the same month. Betelgeuse began to noticeably dim in late 2019, with the red supergiant’s estimated drop in brightness currently at around 36% of its normal output. We have new images of Betelgeuse that show the star is changing in shape! More You can find our Community Guidelines in full here. Want to bookmark your favourite articles and stories to read or reference later? That appears to happen when the material that makes up the star is spewed back into space. They have been observing Betelgeuse with the VLT since December in an attempt to unravel the cause of the changes it is undergoing. We do also share that information with third parties for "The two scenarios we are working on are a cooling of the surface due to exceptional stellar activity or dust ejection towards us," said Miguel Montargès, an astronomer from KU Leuven in Belgium, who led the new study.
“The two scenarios we are working on are a cooling of the surface due to exceptional stellar activity or dust ejection towards us,” says Montargès. But in recent months it has started to dim in a way never before seen, and without explanation. This article was originally published on The Cosmic Companion by Rob Lea. This black hole resides about 54 million light-years from Earth, Pluto, as pictured by Nasa's New Horizons spacecraft as it flew over the dwarf planet for the first time ever in July 2015, A coronal mass ejection as seen by the Chandra Observatory in 2019. Modern technology has enabled us to study these objects, hundreds of light-years away, in unprecedented detail giving us the opportunity to unravel the mystery of what triggers their mass loss.".
Cause investigation, United States are suing hackers behind NotPetya ransomware, An old mother in her 70s who killed her 100kg son, The 11th death of a courier worker this year... Estimating extreme choices, The five suspicious cases of "Yoon Seok-yeol take off your hands", Seoul fine dust'bad' in 110 days... "Atmospheric congestion and smog from China", LG releases rollable TV in its home country of South Korea for 74,500 euros. Kervella explains that the wavelength of the image is similar to that detected by heat cameras. Betelgeuse: Star is dimming and appears to be changing shape, new images show. Regions of space such as this are where new stars are born from a mixture of elements and cosmic dust, The first ever image of a black hole, captured by the Event Horizon telescope, as part of a global collaboration involving Nasa, and released on 10 April 2019. Sit back and let the hottest tech news come to you by the magic of electronic mail. Since December, astronomers have observed the star using the ESO's Very Large Telescope, in an attempt to understand the strange behaviour of the star. The nuclear fusion aspect of nucleosynthesis is still the engine that prevents gravity from overwhelming the core. Betelgeuse is normally one of the brightest stars in the night sky. As Phil Plait of SYFY Wire reports, high-resolution images captured by the Very Large Telescope reveal that Betelgeuse is indeed dimming… but only part of it is actually changing … Quarters, Samsung temporarily shuts down a factory in South Korea due to Coronavirus, Why software developers might be obsolete by 2030, Why training neural networks comes with a hefty price tag, Facebook and YouTube take action against QAnon — but they’re fighting a losing battle. You can read this original piece here. "Over their lifetimes, red supergiants like Betelgeuse create and eject vast amounts of material even before they explode as supernovae. The team needed the VLT to conduct such a precise study of the red supergiant which lies 700 light-years from Earth and gather clues that point to why it is dimming as it is one the few facilities capable of imaging the star’s surface.
This second image, also taken in December 2019, clearly shows light emit by dust clouds around the red supergiant. Researchers now speculate that the star is not in fact about to go supernova, but is undergoing some other, similarly dramatic process. Now new images show that fading brightness of the star, as well as the fact that the shape as it appears to us appears to be changing.
— Helpfully, they took a very similar image, using the same instrument, in January 2019 and before the dimming began – allowing them to compare the two images, and understand more about the changes that Betelgeuse has undergone.
“Of course, our knowledge of red supergiants remains incomplete, and this is still a work in progress, so a surprise can still happen. 4 common mistakes people make when scaling their HR and finance systems, Call of Duty's Halloween event has a Zombie royale and horror crossovers, Google Assistant displays get a new UI, a dark theme, and more features, Disney+ adds a stronger warning ahead of films with racist stereotypes, Learn Python machine learning with these essential books and online courses, UK city plans escooter trial despite safety failures elsewhere. “The phrase ‘we are all made of stardust’ is one we hear a lot in popular astronomy, but where exactly does this dust come from?” says Emily Cannon, a PhD student at KU Leuven working with SPHERE images of red supergiants. The Betelgeuse star only has 36 percent of its normal brightness left. Read next: The SPHERE image is accompanied by another new image of Betelguese taken by a team of astronomers led by Pierre Kervella from the Observatory of Paris in France, using another of the VLT’s instruments, VLT Imager and Spectrometer for mid-Infrared (VISIR). Both the ‘before’ and ‘after’ images were taken in the visible light spectrum. , etelgeuse is an 8 million year old Asymptotic branch giant Red supergiant post main sequence star. The video below takes you from the surroundings of Betelgeuse, recently observed with the VISIR instrument on ESO’s Very Large Telescope (VLT), to its surface, which has been imaged by SPHERE on the VLT. Due to the sheer scale of this comment community, we are not able to give each post the same level of attention, but we have preserved this area in the interests of open debate. The observations, taken with the SPHERE instrument on ESO’s Very Large Telescope in January and December 2019, show how much the star has faded and how its apparent shape has changed. The stunning new images they have captured not only reveal the star’s unprecedented dimming but also that the red supergiant in the constellation of Orion is changing shape. This like for like comparison (above) also seems to clearly show that Betelguese is changing shape. It has since been suggested that they may instead be formed by flowing sand, Morning Aurora: Nasa astronaut Scott Kelly captured this photograph of the green lights of the aurora from the International Space Station in October 2015. The star also pulsates, like a beating heart, periodically changing in brightness. The image reveals the black hole at the centre of Messier 87, a massive galaxy in the nearby Virgo galaxy cluster.
Space Weather News for Feb. 14, 2020 https://spaceweather.com https://www.spaceweatheralerts.com THE CHANGING SHAPE OF BETELGEUSE: Betelgeuse isn't just dimming, it's also changing shape. Please continue to respect all commenters and create constructive debates.
"The phrase 'we are all made of stardust' is one we hear a lot in popular astronomy, but where exactly does this dust come from?"
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Many astronomers believe that although this will happen to Betelguese at some point, this isn’t the process that it is currently undergoing. That is so dramatic that it can be seen with the naked eye, but further investigations with telescopes have attempted to learn more about the mysterious dimming. After an unprecedented dimming, followed by the detection of a gravitational wave, the star seems to have changed shape. Betelgeuse is one of the very few stars that is just the right combination of close enough and big enough that we can resolve it with the world’s biggest telescope. Are you sure you want to mark this comment as inappropriate? by The Cosmic Companion Prefer to get the news as it happens? What is 'infrastructure as code' and why do you need it?
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