Stephenson 2 18 schwarzschild radius. Its radius is estimated at 2,150 times that of our Sun.

Stephenson 2 18 schwarzschild radius. It is a characteristic quantity that may be associated with any quantity of mass. The proper distance from the horizon to anywhere outside a black hole is May 14, 2025 · Calculate the Schwarzschild radius of a black hole based on its mass. In fact, calculating its circumference shows that even light would take several hours to circle its surface. Its huge size makes it stand out among red giants. This concept is crucial for understanding the formation and characteristics of May 9, 2024 · Stephenson 2-18: The Largest Known Star Stephenson 2-18, also known as St2-18, is currently considered the largest known star in the universe . It would take more than 10 billion Sun’s to fill Stephenson 2-18. Mar 29, 2023 · The supergiant was given the number 18 and allocated to the Stephenson 2 SW cluster in a research release in 2010, a collection of stars about 5′ to the southwest of the central cluster that is thought to be at the same distance as Stephenson 2. Stephenson 2-18 is also a super red giant. It represents Aug 23, 2025 · 1. One study suggests that Stephenson 2 DFK 1 is part of a cluster related to Stephenson 2, Stephenson 2 SW, which is assumed to be at the same distance as the core cluster itself. The Stephenson 2 cluster was discovered by Charles Bruce Stephenson in 1990 and is also known as RSGC2. With a radius over 2,150 times that of our Sun and located nearly 20,00 One study suggests that Stephenson 2 DFK 1 is part of a cluster related to Stephenson 2, Stephenson 2 SW, which is assumed to be at the same distance as the core cluster itself. It is one of the largest stars ever discovered, with a radius of 2,150 solar radii. 5 billion kilometers). 5 x 10⁹ km = 9. We would like to show you a description here but the site won’t allow us. A Record-Breaking Giant Discovered in the 1970s […] Stephenon 2 DFK 1 (also known as Stephenson 2-18) isn't the largest known star This star is well-known due to it's estimated radius (2,150 solar radii, 10 astronomical units, 1. Sep 5, 2023 · Explore the Schwarzschild radius, its role in understanding black holes, implications in astrophysics, and future research prospects. The Schwarzschild radius (sometimes historically referred to as the gravitational radius) is a characteristic radius associated with every mass. The upper limit on stellar size is around 1,500 solar radii. Stephenson 2-18 (St2-18, also known as Stephenson 2 DFK 1 and RSGC2-18)[3] is a red supergiant (RSG) or red hypergiant (RHG) star. Jul 31, 2025 · The Schwarzschild Radius also plays a crucial role in determining the properties of black holes, such as their size, mass, and gravitational influence on their surroundings. IC 1101 Mass: 40 to 100 billion solar masses Location: Abell 2029 galaxy Stephenson 2-18 is one of the largest known stars, classified as a red supergiant or possibly a red hypergiant. Both are behemoths of stellar proportions, but which one reigns supreme? In this article, we’ll delve into the world of these colossal stars, exploring their unique characteristics, similarities, and differences. These stellar giants are in the late stages of their lifecycle, having exhausted much of their nuclear fuel. 2. In the nearly flat space far from the center, it behaves like a true radius. II. Stephenson 2-18 (St2_18), also known as Stephenson 2 -DFK 1, or RSGC 2-18, is a red supergiant (RSG) star in close proximity to the open cluster Stephenson 2, which is located around 6,000 parsecs (20,000 ly) away from Earth in the constellation of Scutum . If it replaced the Sun at the center of our solar system, it would extend past the orbit of Saturn (2,047 – 2,049. 957 x 10⁵ km = 1. 5. The term is used in physics and Jan 11, 2025 · Size Stephenson 2-18 is one of the largest known stars. Aug 13, 2025 · Comparing WOH G64 and Stephenson 2-18 highlights the extremes of stellar mass and size, as well as their likely fates as powerful supernovae. The Sun, which already seems enormous, has a radius of 696,340 kilometers. 42 x 10⁹km. \] where \ (G\) is Newton’s gravitational 1. Stephenson 2-18 As of currently Stephenson 2-18 is the largest known star. Measuring 366 billion kilometers (600 billion km) in diameter, this black hole alone far exceeds Stephenson’s 2-18, showing a Dec 28, 2024 · Stephenson 2-18 is the biggest star in the universe which is around 2,150 times our Sun's radius. [9][10] A black hole of this mass has a Schwarzschild radius of 1,300 AU (about 390 billion km in diameter) which is more than 40 times the distance from Neptune to the Sun. The Schwarzschild radius represents the distance from the center of a black hole to its event horizon. One study suggests that Stephenson 2 DFK 1 is part of a cluster related to Stephenson 2, Stephenson 2 SW, which is assumed to be at the same distance as the core cluster itself. It is one of the largest and most luminous stars known to date. If it were placed at the center of the Solar System, its photosphere would encircle Saturn's orbit. 9 R☉). There is another shell with circumfer-ence C2 = 20 GM, and radial coordinate r2 = 10GM. On 28 September it is in opposition to the Sun and culminates at local midnight. 1 Red supergiants form when a moderately massive star runs out of hydrogen fuel. The cluster Sep 25, 2024 · How Big is the Largest Star Stephenson 2-18? A Size Comparison with the Sun and Earth Let's start with the basics: Earth, our home planet, has a radius of about 6,371 kilometers. Aug 3, 2024 · TON 618’s Schwarzschild radius is approximately 1,300 astronomical units. Stephenson 2-18 is a type of Red Supergiant Star and largest in the universe. In other terms, the radius is equal to the gravitational mass of the calculated object divided by the speed of light to the second power. Also catalogued as Stephenson 2-DFK 1 and RSGC2-18, it… Dec 5, 2024 · The Schwarzschild diameter is the theoretical boundary around a non-rotating black hole from which nothing can escape. 58 times the size of the Sun based on a Stefan-Boltzmann Law calculation. 5 x 10⁹ km. The Schwarzschild radius calculator lets you obtain the gravitational acceleration on the surface of a black hole, also called the event horizon. Cl* Stephenson 2 DFK 18 distance from Earth is 9413. Purpose: It is used in astrophysics to determine the critical radius at which an object would become a black Posted by u/rice_with_applesauce - 46 votes and 9 comments Stephenson 2-18 (St2-18) 🔹 Type: Red supergiant (possibly hypergiant) 🔹 Radius: ~2,150 times the Sun’s radius 🔹 Approx. Purpose: It is used in astrophysics to determine the critical radius at which an object would become a black May 11, 2025 · A simple guide to the Schwarzschild radius in black holes. Stephenson 2-18 facts. Stephenson 2-18’s surface would extend beyond the orbit of Uranus if placed at the center of our solar system. Feb 23, 2024 · The Schwarzschild radius is a crucial parameter used to estimate the size of a black hole, and for Gaia BH1, it is mentioned to be approximately 28 kilometers. In fact, if we could replace the Sun with this colossal star, then it would easily engulf the orbits of Earth, Mars, Jupiter and even Saturn, which is on average 886 million miles away or 1. It is among the largest known stars, if not the largest, and one of the most luminous red Stephenson 2-18 is a red supergiant star located in the constellation Scutum, close to the open cluster Stephenson 2, located 19,000 light-years away from Earth. The red supergiant or hypergiant star has an estimated radius 2,150 times that of the Sun. Stephenson 2-18 Stevenson 2-18 is a red hypergiant star located in the constellation Scutum, approximately 18,900 light-years from Earth . Calculate the Schwarzschild radius of any mass to find its event horizon. 5 billion kilometers. The Schwarzschild radius (sometimes RS) is the radius of a (simple) black hole 's event horizon, according to Karl Schwarzschild's solution to Einstein's field equation. 2 The outer shells of hydrogen around the core will then get hot enough Largest Stars Size Comparison Stephenson 2-18 #UniverseScience Situated in the Monoceros constellation, V723 Monocerotis is an ellipsoidal variable yellow giant star of eighth magnitude, with a mass about equal to that of the Sun but a radius 25 times larger. Any object with a physical radius smaller than its Schwarzschild radius will be a black hole. Jan 16, 2024 · When it comes to celestial marvels, few things captivate us more than the stars. It's so colossal that it makes our Sun look like a mere speck of dust in comparison 勞. It is a characteristic radius associated with every quantity Stephenson 2-18 (St2-18, also known as Stephenson 2 DFK 1 and RSGC2-18)[3] is a red supergiant (RSG) or red hypergiant (RHG) star. Sep 29, 2020 · Stephenson 2-18 is genuinely a behemoth, having 2,150 times the radius of the Sun (This is currently the largest star discovered in the Universe since 2020). Let's delve into the cosmic depths and compare these astronomi Jul 25, 2024 · Stephenson 2-18 has a radius about 2,150 times greater than the Sun’s, extending to approximately 1. We do not know its age, nor the gravity on its surface. 957 x 10⁵ km. The Jun 24, 2025 · The Schwarzschild radius, named after the German physicist Karl Schwarzschild, is a fundamental concept in astrophysics and general relativity. The star’s size corresponds to a volume about 10 billion times greater than the Sun. The Schwarzschild radius is the radius of the event horizon surrounding a non-rotating black hole. A solar radius is equivalent to 6. Stephenson 2-18, also known as Stephenson 2 DFK 1 or RSGC2-18, is a red hypergiant star in the constellation of Scutum. Radius pada Stephenson 2-18 yaitu 2. Jika Stephenson 2-18 ditempatkan ke pusat tata surya kita, maka ia akan menelan orbit Saturnus. Jun 24, 2023 · Stephenson 2-18 (St2-18) is a red supergiant or red hypergiant star located in the constellation Scutum. It lies near the open cluster Stephenson 2, which is located around 5,800 parsecs (18,900 ly) away from Earth, and is assumed to be one of a group of stars at a similar distance. It defines the boundary at which the escape velocity equals the speed of light, indicating the point where a compact object has collapsed into a black hole. The radius's equation is "rs=2gm/c^2". This quantity was first derived by Karl Schwarzschild in 1916: where RS is the Schwarzschild radius, G is the gravitational constant, M is the mass of the object and c is the speed of light. Therefore, the radius of Stephenson 2-18 is 2150 x 6. It is much larger than UY Scuti in terms of sheer size. It is the largest star ever discovered. It is among the largest known stars and one of the most luminous red supergiants, with an estimated radius around 2,150 times that of the Stephenson 2 DFK 1, also known as RSGC2-01 or St2-18, is a red supergiant (RSG) or possible extreme red hypergiant (RHG) star in the constellation of Scutum. Its radius is estimated at 2,150 times that of our Sun. With a radius estimated to be around 2,150 times that of the Sun, it completely dwarfs Earth—so much so that if it replaced our Sun, its surface would extend far beyond the orbit of The Schwarzschild radius is the radius of the event horizon surrounding a black hole, beyond which nothing can escape the gravitational pull, not even light. Size comparison between two super giants, Betelgeuse and Stephenson 2-18. . As astronomers examine their size, brightness, and structure, they gather important insights into the life cycles of the universe’s most massive stars. Example 1. May 4, 2025 · 541 likes, 7 comments - spacecameocommunity on May 3, 2025: "Stephenson 2-18, the largest known star by radius, is an enormous red supergiant located about 19,570 light-years away in the constellation Scutum. 5 billion km 🔹 Size Comparison: Largest known star by radius 🔹 Would reach: Beyond Saturn if placed at the center of the solar system 🌟 2. This radiant giant, nestled within the Scutum constellation, offers a captivating glimpse into the profound beauty and cosmic sign Stephenson 2-18 (Stephenson 2 DFK 1) is currently the largest star known. Radius in km: ~1. In conclusion, the Schwarzschild Radius is a key parameter in understanding the nature of black holes and their immense gravitational forces. 8 kiloparsecs (19,000 light-years) away from Earth in the Scutum–Centaurus Arm of the Milky Way galaxy, and is assumed to Aug 8, 2022 · Stephenson 2-18 is a red supergiant star located in the constellation Scutum, close to the open cluster Stephenson 2, located 19,000 light-years away from Earth. Its radius is approximately 2,150 times the radius of the Sun. Расстояние до Земли достигает 18 910 световых лет [3]. If Stephenson 2-18 were in our Solar System, it would stretch past the orbit of Saturn. Stephenson 2-18, known as St2-18 for short, is a red supergiant and is 18,900 light-years away from Earth. See full list on star-facts. We can measure the effects of a black hole and we can also determine the dimensions of a black hole. It is a Jan 16, 2025 · Introduction Two names often come to mind regarding the most massive stars in the universe: UY Scuti vs Stephenson 2-18. But a black hole is a hole. Sep 14, 2025 · Cl* Stephenson 2 DFK 18 is a red very luminous supergiant star in the constellation of Scutum. It lies near the open cluster Stephenson 2, which is located about 5. How is Schwarzschild Radius Calculated? The Schwarzschild radius of a black hole can be calculated using the formula: The Schwarzschild radius or the gravitational radius is a physical parameter in the Schwarzschild solution to Einstein's field equation s that corresponds to the radius defining the event horizon of a Schwarzschild black hole. The Schwarzschild radius of this black hole is 120 billion kilometers, giving a diameter of 240 billion kilometers, 1,600 astronomical units, or about 40 times the radius of Pluto 's orbit, and has a mass equivalent to four Large Magellanic Clouds. It is the radius for a given mass where, if that mass could be compressed to fit within that radius, no known force or degeneracy pressure could stop it from continuing to collapse into a gravitational singularity. Stephenson 2-18 (abbreviated to St2-18), also known as Stephenson 2 DFK 1 or RSGC2-18, is an enigmatic red supergiant (RSG) or possible extreme red hypergiant (RHG) star in the constellation of Scutum. Due to the nature of black holes, we can calculate the event horizon (also called Schwarzschild radius) and the black hole gravity from just the mass of the black hole. The Schwarzschild Radius calculator computes the Schwarzschild Radius based on the mass (M) of the object (e. Stephenson 2-18 is a red supergiant star of the spectral type M6. From Equation 1, verify Equation 2, which gives R in meters and M in kilograms, -11 using c= 3 x 10 Sep 7, 2025 · Stephenson 2-18, the largest star ever discovered in the known universe. According to Wiki, the size is 2,149. May 28, 2024 · Explore the Schwarzschild Metric's role in understanding black holes, space-time curvature, and its implications in astrophysics and GPS technology. It serves as a boundary beyond which nothing, not even information, can escape the gravitational pull of a black hole. If we consider a shell around the star with a circumference of C1 = 6 GM, then the radial coordinate is r1 = C1=2 = 3GM. S5 0014+81 Black Hole Location The S5 0014+81 Black Hole is situated at the center of the quasar S5 0014+81, located in the constellation Ursa Major. May 10, 2025 · The Schwarzschild radius of an object is proportional to its mass, with the proportionality constant being 2G/c^2, where G is the gravitational constant and c is the speed of light. It would take 9 hours to cross this star, considering The Schwarzschild radius is a parameter in the Schwarzschild solution to Einstein's field equations that corresponds to the radius of a sphere in flat space that has the same surface area as that of the event horizon of a Schwarzschild black hole of a given mass. Take a journey from Earth to Stephenson 2-18 — the largest known star in the universe. When we say it’s big, we mean really big. Stephenson 2-18, also known as RSGC2-18 and Stephenson 2 DFK 1, is a red supergiant star in the Stephenson 2 supercluster, in the Scutum constellation, about 20,000 light years or 6,000 parsecs away and it is located near the Supermassive black hole, Sagittarius A. More specifically, his solution yields the radius of the event horizon of an electrically-neutral, non-rotating black hole. Aug 24, 2025 · The radial parameter in the Schwarzschild metric is the circumference of a circle around the center of the object divided by $2 \pi$. With such high mass, Ton 618 may fall into a proposed new classification of ultramassive black holes. That is because "Stephenson 2-18", while is popular thanks to the Internet, is not very much used in publications about this star. [192] The lesson explores Stephenson 2-18, the largest known star in the universe, highlighting its immense size, luminosity, and distance from Earth. This concept is crucial in astrophysics to understand the boundary beyond which nothing, not even light, can escape the gravitational pull of a black hole. TON 618 (abbreviation of Tonantzintla 618) is a hyperluminous, broad-absorption-line, radio-loud quasar, and Lyman-alpha blob [2] located near the border of the constellations Canes Venatici and Coma Berenices, with the projected comoving distance of approximately 18. Feb 13, 2025 · With a radius of roughly 2,150 solar radii, if you plopped Stephenson 2-18 into our solar system, it’d engulf everything out to Saturn’s orbit. This super red giant is located in the Stephenson 2 star cluster, inside the constellation May 28, 2024 · The Schwarzschild Radius is defined as the radius within which the escape velocity equals the speed of light, marking a black hole's event horizon. The gravity influence of such an object is so great that light cannot escape. Apr 27, 2025 · What Makes Stephenson 2-18 the Largest Star We Know? Stephenson 2-18, also called St2-18, is a red supergiant star sitting about 20,000 light-years away in the constellation Scutum. Feb 22, 2024 · Stephenson 2-18 Star Amidst the celestial tapestry of the night sky, the constellation Scutum plays host to a stellar marvel that commands attention—the Stephenson 2-18 Red Supergiant Star. 4 Oct 3, 2024 · The Black Hole Radius Calculator calculates the Schwarzschild radius, which is the radius of the event horizon of a black hole. Schwarzschild radius rs = 2GM (19) This value is known as the Schwarzschild radius. The black hole’s diameter spans 2,600 astronomical units across its event horizon, equivalent to 390 billion kilometers. Is a Quasi-Star bigger than the Solar System? Depends on where you define the end of the Solar System. Stephenson 2-18 has a radius 2,150 times bigger than the Sun's radius! To give you an idea, its volume is more than 10 billion times larger than the Sun's. Stephenson 2-18 is truly enormous, with an estimated radius of 2150 times the size of the Sun. 5 seconds. Here is the radius for other astronomical (and biological) masses: Sun = 3km Average Human = 0. And circling this seething orb are megaton convection columns and ravaging 800 km/s stellar winds that would instantly vaporize anything daring a close approach. Its luminosity is 100 Aug 22, 2020 · So what is the largest known star in the universe? Well, that title currently belongs to Stephenson 2-18. It lies near the open cluster Stephenson 2, which is located about 6,000 parsecs (20,000 ly) away from Earth in the Scutum–Centaurus Arm of the Stephenson 2-18, also known as Stephenson 2 DFK 1 (abbreviated to RSGC2-01), is an enigmatic red supergiant(RSG) or possible extreme red hypergiant (RHG) star in the constellation of Scutum. Think of a well: the circumference of a well does not tell you how deep it is. Each possesses unique qualities, making them celestial wonders worth exploring. Part 2: Radius In the video, it has been stated that quasi-stars can attain radii upwards to 800,000 times that of the Sun. Apr 26, 2024 · The Schwarzschild radius is a fundamental concept in astrophysics and plays a crucial role in understanding the properties and behavior of black holes. However, the estimated parameters are rather unlikely. In general, stars with final masses in the range 2 to 3 solar masses are believed to ultimately collapse to a black hole. It is a red supergiant located in the Stephenson 2 supercluster, in the Scutum constellation, approximately 18,900 light-years away from Earth Size Comparison **Stephenson 2-18 has an estimated radius of about 2,150 times that of the Sun ** . To put 1. When we talk about black holes, one of the first names that pops up is the Schwarzschild solution. 🌟 Meet Stephenson 2-18, the largest star in the known universe! With a radius 2,150 times that of the Sun and a volume of 10 billion Suns, it dwarfs giants like UY Scuti and VY Canis Majoris. Stephenson 2-18 (также известен как RSGC2-01 и Stephenson 2 DFK 1) — яркий красный сверхгигант или гипергигант, являющийся членом звёздного скопления Stephenson 2 в галактике Млечный Путь. On the other hand, Phoenix A’s defining feature is the supermassive black hole at its center. 8 kiloparsecs (19,000 light-years) away from Earth in the Scutum–Centaurus Arm of the Milky Way galaxy, and is assumed to be one of a The Schwarzschild Radius is the radius in which a thing's atoms are so dense they create a black hole. Feb 22, 2024 · S5 0014+81 Black Hole Radius in light years The S5 0014+81 Black Hole has a radius that corresponds to its Schwarzschild radius, which is approximately 59 light years. It is close to, and a possible member of, the open cluster Stephenson 2. The Schwarzschild radius \ (r_s\) of a mass \ (M\) is given by \ [ r_s = {2 G M \over c^2} \ . The star is extremely large, having a gigantic diameter of nearly 2150 times the diameter of the Sun, and it is probably Finder Chart In the search for very distant objects - for example on the «edge of the universe» or better in the first hours of the formation of our universe - you will find the constellation Cepheus a quasar. In the vast cosmic arena, three stellar giants stand out - Stephenson 2-18, Ton 618, and R136a1. 8K Stephenson 2-18 (St2-18), also known as Stephenson 2 DFK 1 or RSGC2-18, is possibly a red supergiant or red hypergiant star in the constellation of Scutum, although some sources consider it to be a foreground object or an unrelated red supergiant. More formally we use numerics by Davies, Figer, and Kudritski from 2007 (hence DFK) because it is much earlier than Deguchi (2010) which gave the numeric 18, so "Stephenson 2-18" but is used rarely. Sep 2, 2025 · Obscured by interstellar dust, light curve analysis shows that its pulsation period is about 740 days, and its radius fluctuates by ±200 times the solar radius. This is just an unimaginably large value (Stephenson 2-18 is actually at the limits of stellar evolutionary theory, and it is 400 times less of this!) Schwarzschild radius, Physics, Science, Physics EncyclopediaThe Schwarzschild radius (sometimes historically referred to as the gravitational radius) is a physical parameter that shows up in the Schwarzschild solution to Einstein's field equations, corresponding to the radius defining the event horizon of a Schwarzschild black hole. Stephenson 2-18 also known as RSGC2-01 or Stephenson 2 DFK 1 is a bright red supergiant or hypergiant in the Stephenson 2 star cluster in the Milky Way Galaxy, 18 910 light years away from Earth. Now, compare that to Stephenson 2-18, which has an astounding radius of 1. Apr 23, 2020 · How large does a star have to be to form a black hole when it collapses? So, for a star with the same mass as our Sun, the Schwarzschild radius is about 3 km, or about 2 miles. The whole circumference of the star is 2 x Pi x 1. A Sep 16, 2025 · Scientists have identified one of the largest known stars in the universe — Stephenson 2-18 🌌. However, the value is highly uncertain because it is significantly larger than stellar evolution theory predicts. 47M subscribers Subscribe Subscribed 8. Ideal for students and astrophysics enthusiasts exploring black hole properties. Suppose we have a neutron star with mass M. g. Nov 3, 2024 · So Stephenson 2-18 boasts 90 to 120 times the gravitational power and nuclear fusion fuel of our Sun – no wonder it ballooned to such epic dimensions. If placed at the centre of the solar system, it would engulf the orbit of Saturn! It lies near the open cluster Stephenson 2. What is Schwarzschild Radius Calculator? Definition: This calculator computes the Schwarzschild radius (r s) of a celestial object, which is the radius of the event horizon of a non-rotating black hole, and the gravitational field (g) at that radius, based on the object's mass (M). Meet Stephenson 2-18 (St2-18), a red hypergiant that currently holds the title of the largest known star by radius in the universe. It is possibly the largest known star, with a radius of 2,150 solar radii. It has about 2000x the radius of the Sun and about 10 billion times the volume. Stephenson 2-18 is larger than UY Scuti by a significant margin. Get results with visualizations, size comparisons, and step-by-step explanations. How Big is Stephenson 2-18? Stephenson 2-18 is one of the largest stars ever discovered. It possesses one of the most massive black holes ever found, at 66 billion M☉. stars: 61 Cygni, Achernar A, Aldebaran, Algol A, Algol B, Altair, Antares, Arcturus, Barnard's Star, Bellatrix, Betelgeuse, BE Ursae Majoris A, BPM 37093, Canopus, Capella Aa, Castor Ba, Deneb, EBLM J0555-57Ab, Fomalhaut, Gacrux, Groombridge 1830, HD 49798, HIP 65426, HR 5171 A, HR 5171 Aa, HW Virginis A, IK Pegasi B, Kapteyn's Star, KIC Jan 13, 2025 · Stephenson 2-18 is considered one of the largest stars known, with an estimated radius of about 2,150 times the radius of the Sun. com Jan 16, 2024 · Stephenson 2-18 belongs to the class of red supergiant stars, a classification that signifies its evolved state and massive size. Black Holes - HyperPhysics Black Holes TON 618 (short for Tonantzintla 618) is a hyperluminous, broad-absorption-line, radio-loud quasar and Lyman-alpha blob located near the border of the constellations Canes Venatici and Coma Berenices, with the projected comoving distance of approximately 18. Located in the Stephenson 2 star cluster abou Physics - Formulas - Schwarzschild Radius A black hole is a result of a very massive star that has collapsed on itself. Mar 7, 2025 · Discover 38 fascinating facts about the Schwarzschild radius, the critical boundary in black hole physics. Feb 3, 2018 · One of the remarkable predictions of Schwarzschild’s geometry was that if a mass \ (M\) were compressed inside a critical radius \ (r_s\), nowadays called the Schwarzschild radius, then its gravity would become so strong that not even light could escape. May 9, 2022 · It has about 2000x the radius of the Sun and about 10 billion times the volume. Not only that, but it would take light 9 hours to circle it's surface, compared to the Sun only 14. Discovered in 1990, this red supergiant star has a radius 2,150 times that of the Sun and shines 440,000 times brighter, captivating astronomers and stargazers alike. May 31, 2025 · Imagine a star so huge that if it sat at the center of our solar system, it would engulf everything from Mercury to Jupiter—and even beyond. It is a characteristic radius associated with any quantity of mass. Jan 16, 2024 · Stephenson 2-18 belongs to the class of red supergiant stars, a classification that signifies its evolved state and massive size. It has a radius of 2,158 so Stephenson 2-18 has a radius of about 2150 solar radius. The Schwarzschild radius was named after the The biggest known star in the universe is Stephenson 2-18 star. It is about 6,000 parsecs (20,000 ly) away from Earth in the constellation of Scutum and is one of the largest known stars. It is one of the several scattered star clusters in the Scutum constellation, each containing Stephenson 2-18 belongs to the class of red supergiant stars, a classification that signifies its evolved state and massive size. The star has an extraordinary luminosity, roughly 440,000 times Apr 3, 2021 · The Largest Star in the Universe – Size Comparison Stephenson 2-18 KLT 2. 46 billion kilometers. After running out of hydrogen fuel the star begins to collapse. Three times the mass of the Sun is the projected mass of the companion black hole, which translates to a Schwarzschild radius of nine kilometers. It's extremely low density, of course, with something like 100x the mass of the Sun. There is only a center and a surface to a black hole: The center of a black hole is called a Stephenson 2-18 is a Red Hypergiant located 20,000 light-years away from Earth in the constellation Scutum. The The distance of Stephenson 2-18 has been stated to have an uncertainty greater than 50%, and the radius of 2,150 ☉ is very likely an overestimation because it greatly exceeds the theoretical limit of 1,500 ☉. Dive into the mysteries of spacetime and gravity! The Schwarzschild radius is the radius of the event horizon surrounding a non-rotating black hole. Jun 24, 2023 · Stephenson 2-18 has an estimated radius of 2,150 solar radii. 08 light years away. 2 billion light-years from Earth. In larger amateur telescopes the quasar S5 0014+81 should be visible with a magnitude of only 16. This star is located in the constellation of the Shield of Sobieski, it is twice as large as Betelgeuse. Problem 1 - The two formulas above give the Schwarzschild radius, R, of a black hole in terms of its mass, M. 8 kiloparsecs (19,000 light-years) away from Earth in the Scutum–Centaurus Arm of the Milky Way galaxy, and is assumed to be one of a group of stars at a similar A challenger to the title of the largest star is Stephenson 2-18 also in the constellation of Scutum the Shield. 150 kali jari jari Matahari (R ☉), atau sesuai dengan volume sekitar 10 miliar kali lebih besar dari Matahari. Imagine our Sun. dcg sgcfgm uparq xpzw jpr ezemqmh vuxzcab gre pexrnc ywh