Spiral galaxies form a class of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae and, as such, form part of the Hubble sequence.Most spiral galaxies consist of a flat, rotating disk containing stars, gas and dust, and a central concentration of stars known as the bulge.These are often surrounded by a much fainter halo of stars, many of which reside in . In galaxy: Spiral galaxies. All galaxies are made up of these same things. Its visual Brightness is 9.9. There are five basic types of galaxies: irregular, elliptical, spiral, barred spiral, and lenticular. The Milky Way was born about 12.5 billion years ago and has been growing ever since. Spiral Galaxy Facts. Elliptical galaxies are denoted by the letter E. They are also given a number from 0 to 7. The Andromeda Galaxy is a spiral galaxy that is located about 2.5 million light years away from Earth. Elliptical galaxies range from circular (remember, a circle is an ellipse!) This will occur in just a few billion years [ 2 ]. 5. There are two main categories for spiral galaxies - barred and unbarred. The Milky Way Galaxy is most significant to humans because it is our sweet home. 3. This seems to be the natural process of the Universe. The largest galaxy we know of is called IC 1101 and has over 100 trillion stars. Elliptical galaxies are classified from E0 . Orbitted by 14+ Dwarf Galaxies. Interesting Statistics Or Facts Of Spiral Galaxies 1. Spiral galaxies are the most common type in the universe. * A Lenticular Galaxy is something between a Spiral Galaxy and an Elliptical Galaxy. The scientists know that they come in all kinds of different sizes. Astronomers currently believe that the . The unprecedentedly detailed portrait of Triangulum is composed of 54 Hubble fields of view stitched together, revealing nearly 25 million . Facts Spiral galaxies are usually found in less galaxy-dense regions of the universe. Both the arms and the disk of a spiral system are blue in colour, whereas its central areas are red like an elliptical galaxy. This delicate blue group of stars actually an irregular galaxy named IC 3583 sits some 30 million light-years away in the constellation of Virgo (The Virgin). [3] Irregular galaxies appear chaotic, with no definable nucleus or structure. This is due to less gas and dust, which results in fewer stars and a smaller galaxy. Also known . The spinning is at hundreds of kilometers per second and this may be what causes the disk to look like a spiral. An E0 galaxy looks like a circle. The approximate diameter of this galaxy is 6,000,000 light-years, whereas the diameter of our galaxy Milky Way is just 150,000 light-years. From the side, spirals look like flat disks with central spheroids. Interesting Pinwheel Galaxy Facts: 6-10. In spite of such a huge number of stars, the distance between Earth and even our nearest star system, Alpha Centauri, is vast. 1. 2: The Milky Way Is Vast. It contains about one trillion stars, and is one of the most distant objects which can readily be seen with the naked eye from the surface of Earth. Physical Science. Spiral Galaxies: Are disc shaped galaxies with . In fact, Andromeda is the farthest thing in the universe that we can see with the naked eye. A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter. The Whirlpool galaxy also goes by the name M51, M51a, and NGC 5194. This Hubble Space Telescope photograph showcases the majestic spiral galaxy UGC 2885, located 232 million light-years away in the northern constellation Perseus. 2. A majority of the observed galaxies fall into this class with around 2/3 of the known galaxies. The Milky Way is an estimated 100,000 light-years in diameter and contains up to 400 billion stars, including our own Sun. 1) Main Types of Galaxies: 3; Spiral ; Elliptical ; Irregular (Ellipticals and Irregulars exist in both normal and 'dwarf' sizes) 2) Number of Galaxies Visible: 100 billion 3) Most Abundant Type of Galaxy: Dwarf Ellipticals 4) Distribution of Normal Size Galaxies in Hubble Classification: Spiral-75%; Elliptical-20%; Irregular-5% (Edwin Hubble's data was . Think of a galaxy as an entire human body. Everything classified between E0 and E7 is a variant of both . [3] Elliptical galaxies tend to have very little interstellar material in them. Our milky way galaxy is around 12.8 billion years old, whereas the universe's origin age is around 13.7 billion years. This is a spheroid packed with lots of stars and contains within it a supermassive black hole that binds together the rest of the galaxy. 1-5 Interesting Facts About Galaxies 1. They have the most variation in size of any type of galaxy, as they can be very large, or extremely small, with some of them being less than 10% of the size of our galaxy, the Milky Way. It contains stars, gas, dust, dark matter and a supermassive black hole at its centre. 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. Irregular Galaxy. Spirals are large rotating disks of stars and nebulae, surrounded by a shell of dark matter. Cartwheel Galaxy is a deep space or deep sky galaxy that is a southern constellation known as the . 1. The Milky Way is a barred spiral galaxy, while Andromeda is an unbarred one. Irregular galaxies are the most unusual of galaxies. 2. 20 Interesting Facts about the Milky Way. The most common is actually spiral galaxies 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. [/caption] As its name implies, a barred spiral galaxy is a spiral galaxy with a bar through the center. Along with the other types of galaxy, the Spiral galaxy was first defined by Edwin Hubble in 1936. 2. The Andromeda Galaxy, also known as M31, is a spiral galaxy situated at a distance of 2.5 million light-years from Earth, or (758kpc.) The nearest spiral galaxy to the Milky Way is Andromeda, it is 2.5 million light years from Earth. They don't have nice spiral arms, but they do have dark patches of gas and dust. The official name of this galaxy is M51. The normal spirals are designated S and the barred varieties SB. Like more than two-thirds of the known galaxies, the Milky Way has a spiral shape. Here is some facts about galaxies!! Fact 3. Galaxies are massive gatherings of space dust, gases, stars, and other celestial objects. Here are a few types of galaxies: Spiral galaxies look like giant pinwheels. Many spiral galaxies have what is known as a galactic bulge. One interesting fact about spiral galaxies is that they have been observed to be rotating in either a clockwise or counterclockwise direction. 5. It's a small part of the Milky Way Galaxy. A galaxy is held together by gravity. Spiral galaxies are one of the most common types of galaxies. There are six main types of spiral galaxies, and they are Sa, Sb, Sc, SBa, SBb and SBc. However, they come in many different shapes and sizes. The Andromeda Galaxy possesses around 450 large globular clusters, the most massive being Mayall II (G1), which is situated 130,000 light-years from the galaxy's nucleus, consists of more than 300,000 old stars, and is twice as bright as our Milky Way's most lumious globular cluster, Omega Centauri. We know of galaxies as massive systems of stars and other interstellar objects bound together by gravity, such as the Milky Way our solar system belongs to. It contains billions of earth-like planets: Exoplanets planets are planets beyond our solar systems. Spiral galaxies form a class of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae [1] and, as such, form part of the Hubble sequence. - Source 2. . The Milky Way is a barred spiral galaxy, while Andromeda is an unbarred one. The word galaxy comes from the Greek word for "milky". [3] There are five basic types of galaxies: irregular, elliptical, spiral, barred spiral, and lenticular. About 10-15% of the Milky Way's visible matter is made of dust and gas, with the rest being stars. The other types are Spiral, Lenticular and Irregular. Spiral galaxies are further classified by how tight their arms are e.g. It has the distinguishing note of being the first galaxy to ever get an official label designation for its well-known spiral shape. This galaxy is about 30 million light years away from our Milky Way Galaxy. Messier 99 (NGC 4254) Location But . [3] The Milky Way has a "galactic halo" on its perimeter, formed of clouds of gases containing clusters of stars. This galaxy is about 30 million light years away from our Milky Way Galaxy. Galaxy Facts A galaxy is a massive, gravitationally bound system that consists of stars, stellar objects (such as brown dwarfs and neutron stars), nebulae, an interstellar medium of gas and dust, black holes, and an unknown component of dark matter. Most spiral galaxies consist of a flat, rotating disk containing stars, gas and dust, and a central concentration of stars known as the bulge. The smallest are dwarf elliptical galaxies, which can be less than 10 percent of the size of the Milky Way. At the center of most galaxies there is a supermassive black hole which can be millions of times . Some scientists think that most of the mass of a galaxy is made up of a mysterious substance called dark matter. 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. Spiral galaxies get their name by the fact that they have a spiral or whirl shape. According to scientists, about 7 new stars are born in the galaxy every single year. There is a lot of Interesting Facts About Milky Way Galaxy But when it comes down to it, our milky way galaxy is a typical barred spiral, much like billions of other galaxies in the universe. M31 is the closest major galaxy to the Milky Way and was often These arms appear as waves. There are different types of galaxies in the universe. It has a diameter of around 170,000 light years across. So let's look at 10 interesting and incredible facts about this mighty system that we call the Milky Way galaxy: 1. There are two main categories for spiral galaxies - barred and unbarred. This movement has been attributed as the cause of the galaxy's shape. Needless to say, comprehending such astronomically large numbers and . to long, narrow, and cigar-shaped. Irregular galaxies make up only about 5% of all galaxies so they're the rarest type. These bulges are often surrounded by a faint halo of stars, many of which reside in globular clusters - a spherical collection of stars that orbits a galactic core. An E7 galaxy is very long and thin. They are divided into two parallel classes: normal spirals and barred spirals. Pinwheel Galaxy sits in the Ursa Major . Elliptical galaxies have a broader range in size than other types of galaxies. 5. A spiral galaxy has a spiral like structure and will have well-defined arms extending outwards. 4. Interesting Whirlpool Galaxy Facts: 1-5. Having a lot of gas and dust means that these galaxies have a lot of star formation going on within them. Although the Andromeda is extremely far, it can be seen with the naked eye. (M99,NGC4254) is a spiral Spiral Galaxy. 1. Our galaxy, the Milky Way, also has a supermassive black hole in the middle. Our Milky Way is a spiral, as is the rather close-by Andromeda Galaxy. So, here are 25 interesting facts about galaxies. Hubble introduced the 'tuning fork' scheme for describing the shapes of galaxies . This can make them very bright. Around two-thirds of all the galaxies in our universe are shaped in a spiral. The Andromeda Galaxy, also known as Messier 31 or M31, is a spiral galaxy located about 2.5 million light-years (2.410 19 km) from Earth.Located in the Andromeda constellation, it is the closest spiral galaxy to the Milky Way, where our solar system is, although it isn't the closest overall galaxy to the Milky Way.. Interesting Facts About Milky Way Galaxy: Introduction Let's take a little journey into the Milky Way to understand . Lesson Summary. It is thought that there is a massive black hole in the center of galaxies. Here are 25 Interesting Facts About Galaxies. The closest galaxy to the Milky Way is Andromeda, which is around 2.6 million light years away from us. The word is derived from the Greek galaxias (), literally 'milky', a reference to the Milky Way galaxy that contains the Solar System.Galaxies range in size from dwarfs with just a few hundred million (10 8) stars to giants with one hundred trillion (10 14) stars . They are among the smallest galaxies and are full of gas and dust. Lesson Summary. Here are 10 interesting facts about our Milky Way Galaxy. The Milky Way is a barred spiral galaxy with a center bulge that is surrounded by four arms that are wrapped around it. NGC1300 is a barred spiral galaxy. Wow! Interesting Andromeda Galaxy Facts: The Andromeda Galaxy is bigger . Galaxies merge to form more substantial and more complex galaxies. The galaxy is familiar to many and the Whirlpool is thought to be a classic design for the description of a spiral galaxy. 9 It Takes Our Solar System 225 Million Years to Rotate Around the Milky Way. The local group contains 50 galaxies including Milky Way . Spiral Galaxy. NASA's Hubble Space Telescope brings the vastness of space into perspective in this mosaic image of the Triangulum galaxy (M33), our neighbor in a collection of dozens of galaxies called the Local Group. A galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants, an interstellar medium of gas and dust. A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. Its apparent dimensions measured in arcmins is 5.4x4.8. The official name of this galaxy is M51. The galaxy we live in, the Milky Way, is a spiral galaxy. Billion of galaxies exist in our Universe, and our Milky Way is just one of them. The nucleus of a spiral galaxy is a sharp-peaked area of smooth texture, which can be quite small or, in some cases, can make up the bulk of the galaxy. The earth is the universe, organ systems inside the human body are solar or planetary systems, and their respective organs are . Such is the case of our galaxy, which seems to be set on a collision course with the Andromeda galaxy. The Large and Small Magellanic Clouds are examples of irregular galaxies. There are approximately 100 billion galaxies in the visible Universe. Structure And Size Of The Milky Way Galaxy. However, this spiral galaxy is also known by the name: NGC 5457. Cartwheel Galaxy Facts: 1-10. We see many stars and clouds of gas and dust. A spiral galaxy can be identified as a spinning, flat disk with spiral arms and a bulge in the center. An Elliptical Galaxy is one of four main types of galaxies that exist in the Universe. Messier 74, also called NGC 628, is a stunning example of a . Galaxies were long thought to be nebulae. Galaxies. The galaxy is spinning at roughly 168 miles per second or about 600,000 miles per hour. Elliptical galaxies are also named because of their shapes. It also goes by the name NGC 5194. The Milky Way Is a Spiral Galaxy. There are eight main types of elliptical galaxies, and they are classified between E0, E1, E2, E3, E4, E5, E6 and E7. 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. Spiral galaxies usually consist of a rotating disk that contains stars, dust, gas, and a concentration of stars known as the bulge in the center. It contains stars, gas, dust, dark matter and a supermassive black hole at its centre. 4. Sitting at a distance of 21 million light years from Earth, it is sometimes known as, Face-On Spiral Galaxy. 4. According to many leading space research websites, out of over three quarters of galaxies discovered, 80% of them are spiral galaxies. And it's all held together by gravity. Fact 2. It also goes by the name NGC 5194. About This Image. The galaxy is 2.5 times wider than our Milky Way and contains 10 times as many stars. They don't seem to fit into either the spiral or elliptical galaxy categories. In the. It may seem to have no discernable structure, but IC 3583 has been found to have a bar of stars running through its center. When you look up at stars in the night sky, you're seeing other stars in the Milky Way. So the universe is not so much older than our galaxy. Fact 1. Key Facts & Summary Galaxies are a relatively recent discovery. The Milky Way is a spiral galaxy resembling a pinwheel and is always spinning. 6. The smallest galaxies would have about 10 or 20 million stars in them, with the biggest about 5 hundred to 1 thousand billion. 1. Elliptical Galaxies: Are ball or oval shape galaxies that are not very bright or colorful. We know different galaxies and how many stars they have by their shape. The Andromeda galaxy is the furthest object that can be seen with the naked eye. 2. When it's not clear what group the galaxy should go in, astronomers usually call the galaxy irregular. Elliptical Galaxies are generally the largest in the universe but spiral galaxies are often teeming with bright new stars - those dusty arms that make up the spiral actually cause new stars and planets to grow. Fast fact #1: The Milky Way Can Be Described With a Thin and Thick Disk and a Halo. The Andromeda Galaxy (also known as Messier 31 or M31) is a large spiral galaxy located about 2.5 million light-years from the Milky Way. Spirals are characterized by circular symmetry, a bright nucleus surrounded by a thin outer disk, and a superimposed spiral structure. A-type have tight arms, whereas C type have loose arms. The spiral nebula as a type was first described by . There Is a Black Hole at the Centre of the Milky Way . On a clear night, the dusty ring of the Milky Way can be seen in the night sky. 2. Read More. There are three main types: elliptical, irregular, and spiral, designated by their .