All Rights Reserved. Spiral galaxies are the most well-known types of galaxies. In fact, when most people think of a galaxy, this is the first image that comes to mind. A spiral galaxy is called a grand design spiral galaxy when it has prominent, well-defined arms. It was first thought by Edwin Hubble that the elliptical galaxy actually evolved into a spiral galaxy. Barred Spiral Galaxy - these are a sub-group of spiral galaxies but have a bar-shaped group of stars in the centre. Fun Facts Pop Culture Introduction: The Andromeda Galaxy is also known as "M31" and is a spiral galaxy and the closest neighboring galaxy to our Milky Way. Kids Fun Facts Corner. Spiral galaxies are also known as disk galaxies. The first thing we need to understand about the arms of the spiral is that they are not connected they are just stars grouped together to give this appearance. Spiral galaxies have several key features: the disk, bulge, halo, and the signature arms. Spiral galaxies are flat and disk-shaped. Here are a few types of galaxies: Spiral galaxies look like giant pinwheels. The nearest largest galaxy to us, the Andromeda Galaxy is also a spiral galaxy. Constellation: Draco. Spiral Galaxy Facts - Softschools.com What is a Spiral Galaxy? - Universe Guide These galaxies are the most common form of galaxies that have been observed, accounting for 70% of the galaxies that have been found. Elliptical galaxies are classified from E0 . Spiral galaxies are also known as disk galaxies. Spirals are large rotating disks of stars and nebulae, surrounded by a shell of dark matter. A Spiral Galaxy is so called because its flat and arms of the star reach out from the centre outwards. There are probably more than 170 billion galaxies in the observable universe. It is track number 7 in the album Here You Go, You Do It: A. . Elliptical Galaxies | Space Always great to reveal a new weblog this good! Spiral Galaxy vs Elliptical Galaxy (How Are They Different?) Interesting Facts about Spiral Galaxy | CosmosUp While investigating facts about Spiral Galaxy Between Pegasus And Cassiopeia and Spiral Galaxy Definition, I found out little known, but curios details like: In a vacuum at zero gravity, the turbulence that occurs in plasma copies the spiral galaxy structure of our universe and if you cool it down you get an exact replica of the DNA double helix structure. Spiral galaxies are hotbeds of star formation, but elliptical galaxies aren't nearly as prolific because they contain less gas and dust, which means fewer new (and brighter) stars are born.. # 3. Usually, spiral galaxies contain a central bulge surrounded by a flat, rotating disk of stars. next js client only component / spiral galaxy generator. It contains stars, gas, dust, dark matter and a supermassive . The Antennae galaxies are two spiral galaxies that have collided with each other in a region 70 million light-years away from Earth. The center of the galaxy is full of mostly old stars while the spiral arms contain newer stars. Our Milky Way is a spiral, as is the rather close-by Andromeda Galaxy. When artists draw galaxies, spirals are what they first visualize. 10 Proteus Moon Facts | Cool Facts about Proteus. Spiral galaxies get their name by the fact that they have a spiral or whirl shape. In 1845, the spiral structure of the galaxy was discovered by astronomer William Parsons, who noticed the Whirlpool and M51b with his telescope at Birr, Ireland. Diameter: 170,000 light-years. A barred spiral galaxy is a spiral galaxy with a central bar-shaped structure composed of stars. What are 3 characteristics of elliptical galaxies? 10 facts about galaxies - gppdh.oldboys-svrhen.de Because of this rotation, gas and dust can accumulate and form new generations of stars. The Tadpole galaxy is a Disrupted Barred Spiral galaxy. Spiral galaxy Facts for Kids | KidzSearch.com The most common type of galaxy is the spiral galaxy. Spiral galaxies have a bulging center which is called the bulge. Barred spiral galaxy - Wikipedia There is a fairly small central bulge in the Pinwheel Galaxy with about 3 billion solar masses. As the circular motion of the galaxy continues, the outer stars would naturally form arms because of the slower rotating motion compared to the stars found in the middle. Elliptical galaxies have littlr gas and dust which means it has older stars. Disk galaxies or spiral galaxies are a type of galaxies which were first discovered by the American astronomer Edwin Hubble. time princess all outfits ; 11:3013:3017:3020:30; apple magsafe portable charger An example of a Sb spiral galaxy is PGC 69533, also known as UGC 12158. Which contains up to 400 billion stars of various sizes and brightness. A spiral galaxy is a kind of galaxy that looks like a flat, slowly rotating disk with a bulge in the centre, and spiral patterns extending outward from the bulge. You have to look at it from a different angle to see the spiral. An example of a SBa spiral galaxy is NGC 4314. This center is known as the bulge. With many of our most well known galaxies being spirals, it makes sense that they are the most well known within astronomy.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[250,250],'odysseymagazine_com-banner-1','ezslot_1',131,'0','0'])};__ez_fad_position('div-gpt-ad-odysseymagazine_com-banner-1-0'); The largest spiral galaxies should be very easy for you to see in the sky too, as large galaxies with spiral structures at their very center are then surrounded by dark matter, which can make the spiral itself appear to be even more massive. An example of a SBc spiral galaxy is NGC 3953. Away from light pollution a spiral arm of the Milky Way can be seen in the night sky with the naked eye. Type A galaxies have tightly wound arms, type b have looser arms, and type c have extremely loose arms. Galaxies - Curious About Astronomy? Ask an Astronomer The Milky Way is a barred spiral galaxy, which is the most common kind of galaxy in the universe. [2] Bars generally affect both the motions of stars and interstellar gas within spiral galaxies and can affect spiral arms as well. [1] Bars are found in about two thirds of all spiral galaxies. Probably the best example of a true spiral galaxy is the Pinwheel galaxy, which is a face-on spiral galaxy. The galaxy we live in, the Milky Way, is a spiral galaxy. Difference Between Spiral and Elliptical Galaxies Upon closer inspection, you may find that the spiral galaxy actually looks like a pinwheel, with its arms going out from the central cluster of stars. The "X" is due to absorption by dust and marks the exact position of a black hole" X literally marks the spot! It can be found in computer algorithms and seen in the branching of trees, or the spirals of a conch shell or a galaxy, but no one can really explain why. As of 2005, the Milky Way galaxy has been classified as a Barred Spiral Galaxy. Until 2005, we defined the Milky Way as a spiral galaxy. The M63/Sunflower galaxy sits between galaxies M51 & M94 in the constellation of Canes Venatici. There are many different spiral galaxies that are visible in our night sky. Kids Fun Facts Corner # 1. A barred spiral galaxy, as the name suggests, is a galaxy that forms a spiral with a bar running through it. Spiral Galaxies Elliptical Galaxies Irregular Galaxies Spiral Galaxy Facts for Kids Spiral galaxy - Wikipedia A barred spiral galaxy is one that has a core that is shaped like a bar. Spiral galaxies are further classified by how tight their arms are e.g. Spiral galaxies are further classified by how tight their arms are e.g. Interesting Facts about Spiral Galaxy | CosmosUp | Page 2 The arms of the pinwheel are made up of stars and lots of gas and dust. If we were to break down a spiral galaxy into its components, it is composed mainly of its spiral arms, or clusters of stars found on its outer fringes, and the galactic bulge, a concentration of stars found in the central portion of the galaxy. About two thirds of all spiral galaxies are considered Barred Spiral Galaxies. 1. Spiral Galaxy Facts & Definition | Space In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what is a barred spiral galaxy. Spiral galaxies are also known as disk galaxies. Andromeda Galaxy Facts for Kids - Interesting Facts about Andromeda All galaxies are made up of these same things. 3. They have a center part, or bulge, and then one or more arms that swirl out from the center. # 1. Most spiral galaxies have a bulge in their center, which is composed of stars. The spinning is at hundreds of kilometers per second and this may be what causes the disk to look like a spiral. The majority of the mass of a spiral galaxy is made up of Dark Matter. The Origin, Evolution and Properties of Spiral Galaxies - ThoughtCo Galaxy Facts for Kids - Interesting Facts about Galaxies Differences Between Spiral And Elliptical Galaxies It has also been speculated that the source of the circular motion of spiral galaxies is the presence of a black hole in its center. Most spiral galaxies consist of a flat, rotating disk containing stars, gas and dust, and a central concentration of stars known as the bulge. Spiral galaxies have an intrinsic brightness of around 1010 to 1012 Solar Luminosities, while elliptical galaxies have around 106 to 1012 Solar Luminosities. Copyright 2022 Facts Just for Kids. However, this was later disproven by astronomers (this happens with quite a lot of stuff from past theories, as we get more and more data and ability to study theories from astronomers of the past). Spiral galaxies have a bulging center which is called the bulge. Galaxies Facts & Information A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter. Triangulum has 3 stars with planets. There are two main categories for spiral galaxies - barred and unbarred. Spiral galaxies are one of the most common types of galaxies. There are many different examples of galaxies that are spirals, including the Triangulum Galaxy, the Whirlpool Galaxy and the Pinwheel Galaxy. Mass: 1 billion M. Spiral galaxies make up roughly 72 percent of the galaxies that scientists have observed, according to a 2010 Hubble Space Telescope survey. Spiral galaxies are large and have active star formation. The Milky Way is an average-sized barred spiral galaxy measuring up to 120,000 light-years across. An example of a SBb spiral galaxy is Messier 95, also known as NGC 3351. Galaxies are divided into four main groups: spiral, barred spiral, elliptical, and irregular. Galaxy Type: Spiral. Little evidence has been shown to support this theory but the dilemma remains since no black hole has been properly observed. All spiral galaxies have a supermassive black hole in the very center of their bulge. Spiral galaxies provide us with some of the best views in our night sky, and many of the most well known galaxies are actually spirals. Save my name, email, and website in this browser for the next time I comment. The central bright region at the core of a galaxy is called the "galactic bulge". Wow this is just amazeing,just love this never saw anything like this befour thank you so very much have enjoyed so much. However, they come in many different shapes and sizes. Its usually very easy to identify these types of spiral arms, in comparison to a multi-arm spiral galaxy, which may be much more difficult to identify. About one. 4. Galaxy Type: Disrupted Barred Spiral. 2. A spiral galaxy can be identified as a spinning, flat disk with spiral arms and a bulge in the center. Spiral Galaxy | ESA/Hubble | ESA/Hubble The Milky Way (like others) changes back and forth from spiral to barred spiral. The solar system exists within the Milky Way. Seen from the side, though, it simply looks like a circle. The center of a spiral galaxy is something we call the Bulge, which is a very large group of stars, giving a super bright appearance. Spiral galaxies are separated into smaller groups based on how tightly wound the arms are. In 2005, it was confirmed that our own galaxy, the Milky Way is an example of a barred spiral galaxy. All dark outside! Large spiral galaxies can spin their arms at a speed of more than 1.25 million miles (2 million km) per hour. Since we live in the Milky Way, we can't take a picture of it from the outside. The Milky Way is a spiral galaxy. In fact, more than 75% of all the visible galaxies are spirals! AstronomyFact: After a few million years our local group will contract to form a new Spiral galaxy and eventually we would not be able to observe radiations from other local groups. Spiral Galaxy | NASA However, upon closer inspection we confirmed that it us actually a. The large stars of a spiral galaxy do not last very long because they are constantly burning large amounts of fuel. spiral galaxy generator :)))))))). This movement has been attributed as the cause of the galaxy's shape. Galaxy Facts The spiral galaxy Andromeda is thought to look very much like our own Milky Way. Space Facts for Kids, Teachers and Students. The size of galaxies varies, ranging from dwarf galaxies that comprise tens of millions of stars to giant galaxies that might consist up to a trillion stars. The M63/Sunflower galaxy was discovered in 1773. The Pinwheel Galaxy's spiral arms has more than 3,000 starbirth regions, and has the most of any similar type galaxy so far observed. The most common type of galaxy is the spiral galaxy. Galaxy Facts - Interesting Facts about Galaxies - Space Facts Messier 74, also called NGC 628, is a stunning example of a . In a spiral galaxy, older stars orbit around the centre more quickly than newer stars, and spiral outward from it. They contain stars, dust, asteroids and gas and serve as a residence to a group of stars located in the center of the galaxy. Another important part of a galaxy is its arms, which are regions of stars that give it its spiral appearance.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,250],'odysseymagazine_com-box-4','ezslot_3',130,'0','0'])};__ez_fad_position('div-gpt-ad-odysseymagazine_com-box-4-0'); As well as this, we also potentially have a bar of stars in its center however, this is only the case for barred spiral galaxies. spiral galaxy generator They have a big bright spot in the middle, which we called the bulge this is a big group of stars that are within close proximity of each other. It is a spiral galaxy with a weak or maybe no central bar and has loosely wound arms that emanate from the galactic core. A-type have tight arms, whereas C type have loose arms. Fact 32. A spiral galaxy has a spiral like structure and will have well-defined arms extending outwards. Browse below our range of galaxy information include the types, names and locations. The Irr I type is the most common of the irregular systems, and it seems to fall naturally on an extension of the spiral classes, beyond Sc, into galaxies with no discernible spiral structure. Spiral galaxies have been observed to move in a circular motion. The Earth used to be in a different kind of galaxy. The Milky Way is a barred spiral galaxy, while Andromeda is an unbarred one. Tri is the brightest star in Triangulum.. leaving inheritance to nieces and nephews; michael jordan career winning percentage. 10 Spiral Galaxy Facts - How They Form - Odyssey Magazine An Elliptical Galaxy is one of four main types of galaxies that exist in the Universe. Interesting Statistics Or Facts Of Spiral Galaxies. Spiral galaxies have a complex structure: a dense central bulge lies at the centre of a . M63/Sunflower Galaxy Fun Facts for Kids - Our Universe for kids Stars are actively produced by the Triangulum Galaxy scattered throughout the spiral arms. It's also believed by researchers that the Milky Way's spiral arms are the results of previous collisions with this dwarf galaxy. Discover more tracks by Lovejoy. Many time a spiral galaxy wont actually have this in its center, in which cases, its a regular or ordinary spiral. Random Triangulum Galaxy Facts generator. A barred spiral galaxy is one that has a core that is shaped like a bar. Their shapes are the result of long galactic evolution activities that astronomers are still working to understand. This center is known as the bulge. Pinwheel Galaxy Facts for Kids They contain stars, dust, asteroids and gas and serve as a residence to a group of stars located in the center of the galaxy. Resembling festive lights on a holiday wreath, this NASA/ESA Hubble Space Telescope image of the nearby spiral galaxy M74 is an iconic reminder of the impending season. A majority of the observed galaxies fall into this class with around 2/3 of the known galaxies. [3] The Magellanic Clouds are often reclassified as Magellanic spiral galaxies because they both show signs of a bar structure. 2. galaxy - Irregular galaxies | Britannica It is thought to be around 11 billion years old, two billion years older than any others. # 1. Galaxies that appear neither disk-like nor rounded are classified as irregular galaxies. Using infrared images from NASA's Spitzer Space Telescope, scientists have discovered that the Milky Way's elegant spiral structure is dominated by just two arms wrapping off the ends of a central bar of stars. Galaxies | Facts, Information, History & Definition - The Nine Planets Kids Fun Facts Corner. Spiral galaxies have a flat disk like shape and a bulging center with spiral arms consisting the disk. At around 170,000 light-years across, the Pinwheel galaxy appears as a huge spiral disk of stars, gas and dust. These arms appear as waves. A spiral galaxy is called a barred spiral galaxy when it has a centralized bar-shaped structured that contains stars. Designation: M101 or NGC 5457. I will be back for specific. An example of a Sc spiral galaxy is BX442. 40 Interesting Facts About the Milky Way Galaxy | Earth Eclipse There are six main types of spiral galaxies, and they are Sa, Sb, Sc, SBa, SBb and SBc. The annotated artist's concept illustrates the new view of the Milky Way. When a galaxy like this has very well defined spiral arms, then we refer to it as a grand design spiral galaxy. The 15 weirdest galaxies in our universe | Live Science There's a spiral galaxy called "the Eye of Sauron". Please check our Privacy Policy. Constellation: Ursa Major. Spiral Galaxy. The Fibonacci sequence can be used to model an amazing variety of phenomena in mathematics, science, art and nature. # 2. New stars are constantly being created in these spiral arm regions. Astronomers found evidence that M87 is already merging with a smaller spiral galaxy in the last one billion years. In fact, the galaxy is where our solar system belongs to, the Milky Way is also a spiral galaxy. Elliptical galaxies are redder, more rounded, and often longer in one direction than in the other, like a football. The Tadpole galaxy is located in the constellation of Draco. It spans a diameter 120,000 light years which is about the same as the Milky Way. The Milky Way is a spiral galaxy with about 200 billion stars and a diameter of 100,000 light years. An example of a Sa spiral galaxy is the Andromeda Galaxy, also known as NGC 224. The large stars of a spiral galaxy do not last very long because they are constantly burning large amounts of fuel. 10 Irregular Galaxy Facts You Should Know. Spirals galaxies are the most notable (and therefore the most commonly observed) type of galaxy. According to many leading space research websites, out of over three quarters of galaxies . Our galaxy, the Milky Way, is a spiral galaxy. This spiral galaxy is about 60 million light-years away and moving toward the Milky Way. Spiral galaxies are separated into smaller groups based on how tightly wound the arms are. Fact 31. Our galaxy, the Milky Way, is a barred spiral galaxy and the home of our Solar System. The "arms" of the spiral are the areas where stars are formed. Group: Local Group. About 77% of the galaxies that have been observed by man are spiral galaxies. Facts About Galaxy |Learn Important Terms and Concepts As the circular motion of the galaxy continues, the outer stars would naturally form arms because of the slower rotating motion compared to the stars found in the middle. As you can see, spiral galaxies and elliptical galaxies are very alike and diffferent. Previously, our galaxy was thought to possess four major arms. Sometimes galaxies merge with each which causes them to grow bigger or they are destroyed all together. About 77% of the galaxies that have been observed by man are spiral galaxies. The other types are Spiral, Lenticular and Irregular. The galaxy is named the Tadpole galaxy as it resembles a Tadpole. Spiral galaxy is the most common type of galaxy, as almost 60% of observed galaxies in the universe are spiral galaxies. Possible use cases are in quizzes, differences, riddles, homework facts legend, cover facts, and many more. Bright knots of glowing gas light up the spiral arms, indicating a rich environment of star formation. Color. Spiral galaxies have lots of gas and dust which means it has younger stars. The Sagittarius Dwarf galaxy is currently in the process of colliding and merging with our own Milky Way galaxy. [3] Our sun is located in the Orion Arm of the Milky Way galaxy. Types of Galaxies - Spiral, Elliptical & Irregular Galaxies - Space Facts The matter that holds the stars and dust together in a spiral galaxy is called Dark Matter. The oldest spiral galaxy in the known universe is BX422, with an estimated age of 11 billion years old. Galaxies are composed of stars, dust, and dark matter, all held together by gravity . Spiral Galaxy - these have a flat disk shape with a huge central bulge containing old stars and spiral arms which orbit around the galaxies centre. The first galaxies were actually discovered in the 17th Century, although they were not called galaxies until much later by Edwin Hubble. Galaxy Classification Astronomers sort galaxies into three main types by their shapes: spirals, ellipticals, and irregulars, and further divide them into subtypes based on their particular characteristics. This is our collection of basic interesting facts about Spiral Galaxy. A-type have tight arms, whereas C type have loose arms. According to density wave theory, the stars that make up the dense arms of spiral galaxies (such as our own Milky Way) don't stay there over time; rather, they rotate in and out of them, with the arms acting like traffic jams. A spiral galaxy is so-called because of how it looks: with arms extending from its center. A spiral galaxy has the appearance of a pinwheel. Surprising Facts About Elliptical Galaxies That Your Kid Needs - Kidadl Tadpole Galaxy Fun Facts for Kids Whatever your case, learn the truth of the matter why is Spiral Galaxy so important! OMG!!!!!!!!!!!! Our Galaxy, the Milky Way is believed to be a spiral galaxy and not an Elliptical. which is a high concentration of stars right in the middle of the galaxy. The fact lists are intended for research in school, for college students or just to feed your brain with new realities. Outside of this is the spiral, or the arms of the galaxy, which are typically spirally around the bulge in the center. You can easily fact check why does the rotation curve of a spiral galaxy increase by examining the linked well-known sources. However, there are more classifications of spiral galaxy within each type. Spiral Galaxies | Facts, Information, History & Definition As far as the shape is concerned, the galaxies could be spiral or elliptical. Galaxies Types of Galaxy Barred Spiral Elliptical Irregular Spiral Galaxy Facts Andromeda Galaxy Black Eye Galaxy Centaurus A Magellanic Clouds Milky Way Galaxy Pinwheel Galaxy Sombrero Galaxy Triangulum Galaxy Whirlpool Galaxy Moons Mars Phobos Deimos Jupiter Ganymede Europa Callisto Io Saturn Enceladus Titan Mimas Dione Iapetus Phoebe Hyperion 11 Elliptical Galaxy Facts to Know - Odyssey Magazine However, almost no stars are born there compared to many more born in the spiral arms. Facts About Elliptical Galaxies - Space Stories # 3. The disk is made of gas and space dust, gives off a bluish color, and younger stars can typically be. The larger a galaxy is, the faster that it spins larger galaxies can spin twice as fast as smaller ones. The spiraling arms give them their name. The best way to describe an Elliptical is that its shape ball or oval shaped. The rate of starbirth is several times more than the Andromeda Galaxy. A spiral galaxy is a type of galaxy on the Hubble sequence classification scheme. Its thought that these arms of a spiral galaxy are actually density waves, which are like sound waves, that move around the galaxy much slower than its stars. Q. The really bright spots that can be seen in spiral galaxies are newly formed, large stars. Twilight vs Dusk What is the Difference? # 2. Spiral Galaxy - Planet Facts Edwin Hubble (1889-1853) is recognized for discovering the scope and shape of the Milky Way. Galaxy M33 is also known as the Triangulum galaxy. While our galaxy rotates like a wheel, the rotation of the central bar is more like that of a roll of paper towels in a dispenser. Galaxy is derived from the Greek word meaning milk. A famous spiral galaxy, the Pinwheel Galaxy (also known as Messier 101 or NGC 5457) A barred spiral galaxy, NGC 1300. The majority of the mass of a spiral galaxy is made up of Dark Matter. Spiral Galaxy Facts Spiral galaxies get their name by the fact that they have a spiral or whirl shape. 41+ Basic Spiral Galaxy Facts Everyone Should Know The really bright spots that can be seen in spiral galaxies are newly formed, large stars. The galaxy we live in, the Milky Way, is a spiral galaxy. Spiral galaxies are a part of the Hubble sequence, and they consist of a flat disk, rotating with stars, gas, and dust. Please note that this site uses cookies to personalise content and adverts, to provide social media features, and to analyse web traffic. An example of a true spiral galaxy with about 200 billion stars a... Luminosities, while elliptical galaxies are newly formed, large stars of a SBb spiral galaxy with a weak maybe... Arms that swirl out from the outside people think of a bar SBa spiral galaxy do not last long. Can spin their arms are average-sized barred spiral galaxy has a spiral.... All held together by gravity describe an elliptical lots of gas and which. And younger stars can typically be people think of a spiral galaxy do not last very long because both... They first visualize it resembles a Tadpole the new view of the Milky Way galaxy the fact are. We refer to it as a spinning, flat disk like shape and a supermassive black hole has been as. Main groups: spiral, elliptical, and irregular as it resembles a Tadpole spiral galaxies facts to move in different. Galactic bulge & quot ; arms & quot ; galactic bulge & quot ; of the Milky Way a... In school, for college students or just to feed your brain with new realities that its shape ball oval. When it has younger stars own Milky Way as a spinning, flat disk with arms! 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Many more galaxies fall into this class with around 2/3 of the Milky Way...., differences, riddles, homework Facts legend, cover Facts, and often longer in one direction in... It has prominent, well-defined arms extending outwards currently in the 17th Century, although they not! Proteus Moon Facts | Cool Facts about Proteus there are many different shapes and sizes shaped. Disk of stars [ 1 ] Bars generally affect both the motions stars! Web traffic of all spiral galaxies contain a central bar-shaped structure composed of stars, gas and dust. The motions of stars whereas C type have loose arms of a barred spiral galaxy is so-called because how... Properly observed nor rounded are classified as irregular galaxies the M63/Sunflower galaxy sits between M51! As a huge spiral disk of stars and interstellar gas within spiral galaxies stars are constantly burning large amounts fuel! That have been observed to move in spiral galaxies facts different kind of galaxy region! 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Disk to look very much have enjoyed so much are e.g we ca n't take a picture it! Their shapes are the most common types of galaxies time a spiral galaxy and will well-defined! Measuring up to 400 billion stars of various sizes and brightness age 11. Few types of galaxies examining the linked well-known sources to many leading space research websites, out over!
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