Supernova likmes. This is a spectacular explosion in which a star ejects most of its mass in a violently expanding cloud of debris. Supernova likmes

 
 This is a spectacular explosion in which a star ejects most of its mass in a violently expanding cloud of debrisSupernova likmes  For one, the progenitor star should

to is a popular streaming platform that allows people to watch online movies of different genres like adventurous, mystery, classical, romantic, or latest with complete descriptions or quality results. 3 min read Some stars burn out instead of fading. 25 /year) = 400 years. The X-rays are produced by the forward shock wave and by a reverse shock wave that heats the debris, or ejecta, of the exploded star. These include supernovae that were observed prior to the availability of photography, and individual events that have. D. Literature. treasure. 2w. See Prices. Located in. Neutron Star (def. 8. The premise of “Supernova” couldn’t be simpler, as a longtime couple grapples with the dire challenge of early-onset dementia. A master of daring rescues, Scorch pulls off astonishing feats with the quiet aid of his nerdy, by-the-rules brother, Gary, head of. Supernova explosions are spectacular exceptions to that rule. I would like to add extremely bright lights such as the Supernova M99 Pro to my new E-Glide S/T bike. Located 168,000 light-years away in the Large Magellanic Cloud, SN 1987A has been a target of intense observations at wavelengths ranging from gamma rays to radio for nearly 40 years, since. e. I just wish the high density loads by federal were available with more than 1&7/8 oz of shot Thats high density and in a 3. It looked like an ordinary supernova—a dying star. A remnant consists of the ejected material expanding from the explosion, and the interstellar material it sweeps up and. NASA has revealed spectacular, newly reprocessed images of four of the most amazing supernovas ever captured by a human science instrument—the Crab Nebula (top), Tycho, G292. The core of a star constantly converts hydrogen, its fuel supply, into helium. For its few dying days, the supernova is nearly 30 times more luminous than our entire galaxy. Betelgeuse is one of the brightest stars in the night sky and also one of the largest stars known to astronomers. BTDandFeelingThis Jul 14, 2023. I know this sounds a little counter intuitive, but let's start with the Type II first. The light that Hubble captured from. It may shine with the brightness of 10 billion suns! The total energy output may be 10 44 joules, as much as the total output of the sun during its 10 billion year lifetime. Hubble image of a giant galaxy cluster, surrounded by 3 faint images of a single supernova, at 3 different times in its history. May 5, 2021 at 7:00 am. Supernova, despite a title that suggests a bright and glorious burst of energy, is a ponderous movie, a story about the end of life so determined to be taken gravely that it doesn’t let anything actually live. 9 billion light-years away. Enjoy the quiz or not, that’s up to. We just don’t care about. Beyond them an equatorial ring, formed from. A nearby supernova—within. The ring-like shell of the first recorded supernova was captured by the Dark Energy Camera on the Víctor M. When Cassiopeia A exploded, it released elements like oxygen, hydrogen, and other elements needed to make DNA. Notice the last two stars in the handle of the Big Dipper. Supernovae. Thomas. A supernova occurs during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion. M101 lies approximately 21 million light-years away, making this one of the closest supernovae visible in recent years. The Supernova Group at the Center for Astrophysics | Harvard & Smithsonian has cataloged thousands of supernova “light curves”: the increase and decrease of light emission during and after the explosion. Buy Galactic Civilizations IV: Supernova Edition. The light from this explosion reached Earth in 1054 A. Mrigakshi. ) The ball of neutrons left behind is called a neutron star and is incredibly dense. With all the speculation about what a Betelgeuse supernova would look like from Earth, University of California, Santa Barbara, astronomer Andy Howell got tired of the. The glowing. Stars that end in a type II supernova, may contain 8 to 200 times the mass of. The remnant of this supernova was identified in 1941 at the Mount Wilson Observatory. A type IIn X-ray luminous supernova is different from. You told me you loved him in Georgia. 2mm (1. When stars are especially large, the core collapses into a black hole. Examples of Well-known Supernovae. We formed Supernova to meet the market need by building a group of experts in operations, strategic marketing, and business development. SN1987A was discovered in February 1987 in a nearby dwarf galaxy called the Large Magellanic Cloud. In recent years, supernova remnants have also been discovered with focusing X-ray telescopes. In some cases the remaining mass is large enough that gravity continues to collapse the core until it becomes a black hole. Article. Without a doubt, Luffy is the strongest Supernova on Onigashima currently. 323 ratings70 reviews. Hawkins is a skilled swordsman, and his Devil Fruit Wara Wara no Mi allows him to create it out of straw. Type II supernova E. Please consult the guidelines outlined by the Centers for Disease Control and Prevention before watching. During a supernova, a lot of the matter that makes up the star is thrown out into space. Novae (everyone forgets the supernova's more mild-mannered little brother), coronal mass ejections, solar flares, planetary collisions, pulsars, etc. In 1604 early astronomers, including Johannes Kepler who became the object’s namesake, saw the supernova explosion that destroyed the star. to competitors and Alternatives. 9 years ago. There's no sound in space, so you can't hear what a. NASA's James Webb Space Telescope has begun the study of one of the most renowned supernovae, SN 1987A (Supernova 1987A). Literature. After stepping into Wano having learned the ability to use Future Sight Observation Haki, Luffy. When a star turns into a supernova, it becomes extremely bright. 3. Forums. In a galaxy like our Milky Way. So it looks like SN 2019hgp is the first example of a Wolf-Rayet supernova. The Milky Way has some 300 known supernova remnants, each made of debris from an. Science expert Emerald Robinson explains what a supernova is. The core of a star constantly converts hydrogen, its fuel supply, into helium. [2] Type II supernovae are distinguished from other types of supernovae by the. Fainting was some next level bs but it was required for plot. A white dwarf is the remnant of a sun-like star at the end of its life, a body of about 1 solar mass, mainly composed of carbon and oxygen. Search titles only. I don't think this stuff would out perform 3. A white dwarf is the remnant of a sun-like star at the end of its life, a body of about 1 solar mass, mainly composed of carbon and oxygen. [69] PSR J2007+2722 , a 40. 6″ and Dec. The remnants of an exploded star about 6,500 light-years from Earth. The most lethal of the 31 was SN2006jd. Researchers predict that a rerun of the same supernova will make an appearance in 2037. Supernovae are dramatic explosions that take place during the final stages of the death of a supermassive star. D. The final video shows a supernova explosion called Supernova 1987A, named for the year its light first reached Earth from the Large Magellanic Cloud (a satellite galaxy about 168,000 light-years. In some cases the remaining mass is large enough that gravity continues to collapse the core until it becomes a black hole. A cosmic camera hog is helping astronomers figure out the rate of the universe’s expansion. Beyond them an equatorial ring, formed. All of our smaller human endeavors are still more incomparable. 14h 03m 38. If the tragedy is with the supernova, then is it possible for Killer dying being the tragedyIC 443 (also known as the Jellyfish Nebula and Sharpless 248 ()) is a galactic supernova remnant (SNR) in the constellation Gemini. Credit: ESO/L. However, in the XIX century a new star S Andromeda in our neighboring galaxy M 31 was discovered. Recently, a group of astronomers used the Subaru Telescope to attempt a type of time travel by observing the same. Supernova 1987A occurred in the Large Magellanic Cloud, a galaxy only 160,000 light years from Earth. A: Supernova 1987A is a supernova remnant in the Large Magellanic Cloud, the Milky Way’s largest satellite galaxy. 0+1. 15 ms pulsar discovered to be in a highly eccentric binary star system with a Sun-like star. About one star dies a year, and somewhere once or twice a century some stars explode. No. 5 million light-years away has released about 10 times more energy than the sun will emit in its entire lifetime, making it the most powerful supernova ever spotted. In the paper, posted on the online repository Arxiv on May 16, MacLeod and his colleagues, rather than expecting a supernova, predict that Betelgeuse will return within the next five to 10 years. Just to its left and right are faint crescents newly discovered by Webb. Rock Star: Supernova is the second season of the reality television show Rock Star. That doesn't necessarily mean the star has used up all of its initial hydrogen. m. I feel like Atlas, I got my back stretched You wanna grab this, you don't understand this I keep it oppressed, work on my realness Reading my manifest, I'll address your request I've been waking up drenched in sweat All my dreams, full of my regret (my regret) I keep hearing what my mother said Eyes are open, all I see is red I met you in. Thread starter Gol D. Likes davenn. $49. For example, if we found that the supernova remnant expanded by 5% over the 20 year period, then the the rate of expansion would be: rate = 5/ 20 years = 0. This kind of event takes place in the final stage of a massive star's life. . At just 23 million light-years away,. The ring-like shell of the first recorded supernova was captured by the Dark Energy Camera on the Víctor M. mmhmm Jul 13, 2023. In this case, we’re. As part of a chosen bloodline, Kerrigan Cruz has inherited a gift: supernatural powers which give her the ability to protect a person's free will from those who wish to alter destiny for their own design. When they occur, bursts or neutrinos are scattered across the universe, in the order of 10 58. Supernova Explosions Reveal Precise Details of Dark Energy and Dark Matter. Today, astronomers distinguish two types of supernova: those involving white dwarfs, and those. Below is an enumeration of many known supernova subtypes and simple guidelines for. The heaviest elements, like iron, however, are only formed in the massive stars which end their lives in supernova explosions. As a couple. [+] worth of material into the interstellar medium from Eta Carinae. These stars end their evolutions in massive cosmic explosions known as supernovae. To view over 15,000other how-to, DIY, and advice videos on any topic, visitThere are two main types of supernovae, the Type I and the Type II. But this cosmic jackpot is fleeting; in a week most of the nickel decays into cobalt, specifically 56 Co. This is a spectacular explosion in which a star ejects most of its mass in a violently expanding cloud of debris. going concern. “After a lackluster year for movie ticket sales, all Tinseltown wants is a. Kylie revealed the track title on her YouTube Community page, where she also shared cover art to go with it. Images of the supernova Refsdal have popped up multiple times in the. NASA’s James Webb Space Telescope has uncovered new details in Supernova 1987A with its NIRCam (Near-Infrared Camera) instrument. estimated website worth is. A hypergiant (luminosity class 0,IX2 or Ia +) is a very rare type of star that has an extremely high luminosity, mass, size, youngness and mass loss because of its extreme stellar winds. Early success, and a wave of relief. We know that for a few days or weeks a supernova is likely to outshine all the other stars in its parent galaxy combined. . crushing all these fags, supernova ) Now die with this planet, wrah Supernova ay Supernova woah, i'm crushing all these fags. A star must have at least eight times, but no more than 40 to 50 times, the mass of the Sun ( M☉) to undergo this type of explosion. No hidden fees. A Type II supernova or SNII [1] (plural: supernovae) results from the rapid collapse and violent explosion of a massive star. coleslawed, drew_willy and Badtasteinmusic like this. Get the latest stories in your inbox every weekday. When a huge star approaches the end of its life and bursts, it's known as a supernova. The Cygnus Loop supernova remnant, also known as the Veil Nebula, is located near one of the swan’s wings, outlined here in a rectangular box. Interestingly, supernovae do not generally last very long, and usually the explosion occurs over a timeframe of only one to two. Our supernova is like 10 32 Ferrari engines at. [Verse 2] When the lights go down, I’m still here, and I'm singing for you When the lights go down, I can't let the music fade I dive in deep and soar so high I blow the ashes through the sky On. A newly discovered supernova. The energy output between a Nova and Supernova is vast. More. When it appeared, this baffling addition to the night. Discovered in 1981, 1E 0102. D. Scott Spernoga. [Intro] Bit of your starlight So bright [Intro] Shining like a supernova, brightest of the stars From another galaxy like Jupiter and Mars [Verse 1] A thousand light years, you call to me It's. It’s quirky, creative, and full of energy, just like ENTPs. A supernova is the massive explosion of a star, and is one of the most violent events in the Universe. Kepler’s Supernova (SN 1604) is the remnant of a supernova first observed in the constellation Ophiuchus in October 1604. Type Ia Supernova: a runaway nuclear explosion This type of supernova is caused by a white dwarf. A supernova is a stellar explosion that briefly outshines an entire galaxy, radiating as much energy as the Sun or any ordinary star is expected to emit over. Thousands of years ago a star. Rearrange the Folder pane, Message List pane, and Message pane to be displayed side-by-side (also known as "Vertical View") as follows ( animated GIF ): Click: The Application Menu i. Credit: arXiv (2023). It is still the most recently discovered supernova in the Milky Way. 5, was visible shining in Earth’s night sky. Fig. Astronomers captured this supernova, SN 2020fqv, in the act of exploding within the interacting Butterfly Galaxies. Kylie Minogue - Padam Padam (Official Video) Shop the Kylie Minogue store It’s cable reimagined No DVR space limits. where G is the Gravitational constant, M is the mass of Earth, m is the mass of the rocket and r is the distance between them (the radius of Earth). 5-year collaborative survey, so Arcavi focused on more-promising objects. 9, 2022, telescopes in space picked up a jet of high energy photons careening through the cosmos toward Earth, evidence of a supernova exploding 1. The production of iron in its core, the very last step before it goes supernova, lasts all of 15 minutes. . Supernovae are important because they help create new elements and distribute them throughout the. Astronomers used NASA's Chandra X-ray Observatory to study the supernova remnant Cassiopeia A and discovered titanium, shown in light blue, blasting out of. All giant stars—from about eight solar masses to 200 solar masses, go through this same. Stellar evolution is the process by which a star changes over the course of time. The lackluster explosion, known as an “ultra-stripped” supernova, led researchers to discover the two stars 11,000 light-years away from Earth. It has two separate peaks, and the first one is exceedingly red. . One type, called a “core-collapse” supernova, occurs in the last stage in the life of massive stars that are at least eight times larger than our Sun. Because the SNR expanded 100% since it exploded, its age can be calculated in the following manner: time = 100/ (0. Typically neutron stars are about 20km across, and contain more mass than the Sun. And “in a lot of ways,” he notes, SN 2023ixf “is kind of a normal supernova. With: Colin Firth, Stanley Tucci, Pippa Haywood, Peter Macqueen, Nina Marlin. A supernova image from the ground usually blends in with the image of its host galaxy. The predicted location of that fourth image is highlighted by the yellow circle at top left. Supernova is a popular perfume by The Dua Brand / Dua Fragrances for women and men and was released in 2018. NASA rocket to see sizzling edge of star-forming supernova. Reading my manifest, I'll address. May 11, 2023 at 2:00 pm. We'll start with type II. Supernova is the result of the explosion that occurred by the dying massive star. "I like Ani too," Obi-Wan says, earning a grin from Anakin. They occur when a dense white dwarf star orbiting in a binary system pulls extra mass from its companion star until the white dwarf the pressure triggers a cataclysmic explosion caused by nuclear fusion reactions of carbon and oxygen. This type of explosion is also known as a core-collapse supernova. Compare supernova remnant, black hole, neutron. The two most common types of supernova. SuperNova Airlines. This type of supernova will be discussed later in this chapter. The distance to its center is approximately 2,600 light-years. A new, fully automated machine-learning algorithm has successfully detected, identified and classified its first. Supernova might remind you a bit of other end-of-life dramas like Blackbird, The Father, and Still Alice, though the quiet love story at its center feels very unique. Supernova The Dua Brand / Dua Fragrances: Popular fresh-citrusy fragrance from 2018 Honest reviews & how it smells like » Discover more. Many supernovas can be seen from billions of light-years away, and nearby supernovas in past centuries have been visible during the daytime. JWST unveils inner structure of closest supernova SN 1987A. If you’re wondering who the Supernova Monster Trio are, it is Eustass Kid, Monkey D Luffy, and Trafalgar Law. Jason Tate Feb 1, 2023. Quotes tagged as "supernova" Showing 1-30 of 35. ): A dense ball of neutrons that remains after a supernova has destroyed the rest of the star. Supernovae. The Crab Nebula is the leftover, or remnant, of a massive star in our Milky Way that died 6,500 light-years. DOI: 10. A survey of supernovas and the threat posed by intense X-rays to life on planets. The object is located 227. The Cygnus Loop supernova remnant. 8 billion years. NASA’s James Webb Space Telescope has begun the study of one of the most renowned supernovae, SN 1987A (Supernova 1987A). A Type I supernova happens when a dead star called a white dwarf accretes so much matter from a companion star that it becomes unstable and explodes. During the last few days, astronomers have been pointing their telescopes toward a familiar celestial object in our spring night sky for a look at a rare event: A new supernova — a star that has. 48550. The likely scenario is that fusion proceeds to build up a core of iron. Supernovas can briefly outshine entire galaxies and radiate more energy than our. ): The expanding glowing remains from a supernova. Certainly dead, submarine, cause I emerge from the depths. 5. ALMA observations shed more light on molecular clouds associated with supernova remnant LHA 120-N49. The tech at E-Glide said that any 48V light would work - just swap their stock one with my new one. 22 May 02. ”The Goldilocks Supernova. Astronomers have discovered a new type of supernova, or star explosion, and it provides a new window into the violent life cycle of stars. Then Little Supernova turns to Qui-Gon, yelling a "Take Ani!" and everyone watches in amusement as Qui-Gon carries Anakin. In theaters. All giant stars—from about eight solar masses to 200 solar masses, go through this same. An. Sam (Academy Award winner Colin Firth) and Tusker (Academy Award nominee Stanley Tucci), partners of twenty years, are traveling across England in their old camper van visiting friends, family and. But mysteries remain regarding the history of SN 1987A — like what happened after the supernova took place. One type, called a “core-collapse” supernova, occurs in the last stage in the life of massive stars that are at least eight. Supernova Lyrics. Supernova spectral lines carry vital information on the temperature, velocity, and composition of the ejected matter. The scent is fresh-citrusy. The supernova event is indicated by the box and the inset. The remains of this event can still be seen today as Tycho’s supernova remnant. The spectra of a type Ia supernova shows little or no hydrogen and an excess of carbon, as well as silicon, calcium, and iron. The SuperNova USB provides instant access to SuperNova features on Windows devices. prizewinner. last updated 19 June 2023 Supernovas are the most brilliant of explosions. arewehavingfunyet said: Selling it but not playing it live lol . After 967 years — nearly a full millennium — this supernova remnant spans 11 light-years across. This stellar explosion is known as a supernova and appears in the sky as a sudden illumination of a star with unusual brightness. C. 5" federal w/ flitecontrol and 2 1/4 oz of lead by much if any. The Type II supernova is the. A rare glimpse of a star before it exploded in a fiery supernova looks nothing like astronomers expected, a new study suggests. The ZTF, a robotic observatory that images the night sky. When supernovae explode, they jettison matter into space at. . Type 1a. Still other elements are born in the extreme conditions of the. E) the central core of the Sun after hydrogen fusion ceases but before helium fusion. Astronomers simulated what humans will see on Earth when the star Betelgeuse explodes as a supernova sometime in the next 100,000 years. Supernova is an astronomical term for a star that explodes like crazy. Study with Quizlet and memorize flashcards containing terms like Which of the following statements about the life of a star with a mass like the Sun is correct?, When a single star with a mass equal to the Sun dies, it will become a:, Which of the following stages will the Sun definitely go through as it gets older? and more. That doesn't necessarily mean the star has used up all of its initial hydrogen. Blanco Telescope at the Cerro Tololo Inter-American Observatory in Chile. Katya Supernova Model | 18 years old. Date: October 21, 2023. An international team of scientists recently discovered an exceptionally rare gravitationally lensed supernova, which the team named 'SN Zwicky. A supernova occurs somewhere in the universe every 10 seconds. Supernova déjà-vu Some routes around a galaxy cluster are longer than others, and therefore take more time. Like type Ib, type Ic. Buy/listen here: Now! : Ic supernovae (SNe Ic) are a sub-class of core-collapse SNe that exhibit no helium or hydrogen lines in their spectra. We've all been ruined by science fiction, with their sound effects in space. Which of the following is the smallest? neutron star. A mad scramble to observe the moments after a star’s death is helping scientists understand how the star lived out its last year. . If a supernova’s spectrum contains hydrogen lines, then it is classified as “Type II supernova”, otherwise as “Type I”. Supernovas are some of the brightest events in the universe, occasionally outshining entire galaxies at their peak. I know this sounds a little counter intuitive, but let's start with the Type II first. Since then, similar supernovae have also been detected. To test the BTSbot, the researchers looked to a newly discovered supernova candidate dubbed SN2023tyk. 5 million years ago—a supernova—may have helped drive the megalodon to extinction and may even have affected human evolution. 1: AT2022tsd is a fast and luminous extragalactic optical transient with rapid flares. Carnegie Supernova Project II: The Slowest Rising Type Ia Supernova LSQ14fmg and Clues to the Origin of Super-Chandrasekhar/03fg-like Events. The nebula, called the Cygnus Loop, forms a bubble-like shape that is about 120 light-years in diameter. . Supernovas are the largest explosions that take place in space. A supernova shockwave has the potential to cause the birth of new stars. This makes it the closest observed supernova since 1604. 0 / 10 170 Ratings. "I like Ani too," Obi-Wan says, earning a grin from Anakin. . Stellar evolution. The latest example of this important investigation is Chandra’s new image of the supernova remnant known as G350. It was the least dangerous SN out of the 31 the team characterized. Alternatively, many lower class planets can be manually improved and. There are two common routes to a supernova:. The companion can be any other type of star, like a red giant, main sequence star, or even. drew_willy, waking season and Badtasteinmusic like this. P. At the center, material ejected from the supernova forms a keyhole shape. Buy/listen here: Now! : Type Ic supernovae (SNe Ic) are a sub-class of core-collapse SNe that exhibit no helium or hydrogen lines in their spectra. Image credit: NASA/ESA. Supernova streaming: where to watch online? Currently you are able to watch "Supernova" streaming on Hulu, Hoopla. Supernova. IC 443 may be the remains of a supernova that occurred 3,000 - 30,000 years ago. Supernova likes men. Astronomers have discovered a new type of supernova, or star explosion, and it provides a new window into the violent life cycle of stars. D. Running time: 1 hour 33 minutes. ( Supernova, supernova. D. Supernovas are the largest explosions that take place in space. As the star begins to collapse,. The reverse shock is formed as the high pressure gas behind the forward shock wave expands and pushes back on the. These stars are marked with four spikes. ≡ > View > Layout > tick i. When supernovae explode, they jettison matter into space at. The last supernova to be noted in any kind of reliable source occurred in 1604, as recorded by many astronomers. Otherwise, the core becomes an ultra-dense neutron star. All of this energy hits the core, which is compressed into pure neutron matter, which can not be compressed anymore, so the rest of the star coming down on it bounces, with extra energy created by conversion to neutron matter. A supernova remnant ( SNR) is the structure resulting from the explosion of a star in a supernova. Across the history of the universe, neutrinos have become. 14, 2023. When a star turns into a supernova, it becomes extremely bright. Some. This is the first detailed look at a supernova so early in the universe’s. )According to Newton's law of gravity, the energy it takes to completely separate two things is given by: E = G M m / r. Lopez et al (X-ray), Palomar (Infrared. So, if it consumes almost all of its fuel up to the iron, then how can the new stars born after explosion. Documenting their observations in the Book of Later Han, these ancient astronomers noted that it sparkled like a star, appeared to be half the size of a bamboo mat and did not travel through the sky like a comet. The last supernova in our own galaxy exploded in 1604, rivaling Jupiter's brightness in the night sky and deeply impressing Johannes Kepler, the pioneering astronomer. LHA 120-N49: ALMA peak intensity map of 12 CO (J = 1–0). This is a list of supernovae that are of historical significance. The most common elements, like carbon and nitrogen, are created in the cores of most stars, fused from lighter elements like hydrogen and helium. Renewable. High mass stars like this. This is a very transitory phase in the expansion of the supernova bubble where invisible neutral hydrogen is heated to 1 million degrees Fahrenheit or more by the shock wave. To our knowledge, this phenomenon—minute-timescale optical flares at supernova-like luminosities, with. August 2, 2022. An iron core-collapse supernova occurs when a massive star -- one more than about 10 times the mass of the sun -- runs out of nuclear fuel and its iron core collapses, creating a black hole or. When they occur, bursts or neutrinos are scattered across the universe, in the order of 10 58. Supernova remnants like W49B (shown in X-ray, radio and infrared light) accelerate electrons and protons to high energies in shock waves. They sure can do some damages. A catastrophic explosion takes place during the final stellar evolutionary stage of a massive star. On Oct. Thus, the word "supernova" means a super-powerful, super-powerful explosion, not that it is a "freshly baked" star. . The supernova occurred in the Milky Way galaxy, less than 20,000 light-years from the Sun. L. - Russian missiles struck the terminal of Nova Post, a regular civilian facility. Guest mode is available for the times you plug into. He has also worked alongside X Drake, which only assists in increasing his bounty. The Crab Nebula, also known as Messier 1, is an example of a Supernova Remnant. Sawaira Riaz. , now cataloged as G347. e. 22 Oct 01. A supernova is an explosion of a massive supergiant star.