HD 47186 b is a super earth, about 20 times the mass of our planet. It should not be confused with the Canis Major Dwarf Galaxy, a controversial name given to an dense collection of stars hidden behind dust clouds deep inside the Milky Way. Canis Major is a constellation in the southern celestial hemisphere.In the second century, it was included in Ptolemy's 48 constellations, and is counted among the 88 modern constellations.Its name is Latin for "greater dog" in contrast to Canis Minor, the "lesser dog"; both figures are commonly represented as following the constellation of Orion the hunter through the sky. 12. There are roughly one billion stars in this dwarf galaxy. The type of galaxy is irregular. The fourth virgin is Delta Canis Majoris, named Wezen, Arabic for weight, to which R.H. Allen adds, "as the star seems to rise with difficulty from the horizon"; but Ideler justly calls this an astonishing star-name." 3. They have set up research stations along with production facilities and ship yards. Canis Major - Celestial Atlas by Alexander Jamieson - 1822, Sirius and Sirius B - Hubble Space Telescope - December, 2005, VY Canis Majoris - M3 Red Hypergiant - Hubble Space Telescope - January, 2007. – Source. The Canis Major Dwarf Galaxy can be called as a satellite of the Milky Way since it is the closest one to the center of our own galaxy. Zeta Canis Majoris is known as Furud, the solitary one. Read on to discover some fascinating facts about these celestial wonders. Canis Major is home to Sirius, the brightest star in the sky, as well as to several notable deep sky objects: the Canis Major Dwarf Galaxy, the open cluster Messier 41, the emission nebula NGC 2359 (also known as Thor’s Helmet), and the colliding spiral galaxies NGC 2207 and IC 2163. Each galaxy contains about 10 million stars. The reason it is so bright is because it is so close, only 8.7 light years away, the second closest naked eye star to Earth (after Alpha Centauri), and the fifth closest star overall. All Rights Reserved. Farther still at 75 million light-years is NGC 2280, a spiral galaxy with a magnitude of 11.0. Open star cluster NGC 2362 is also visible to the naked eye at magnitude 4.1. M79 is believed to have originated outside of the Milky Way, in the Canis Major Dwarf Galaxy to be precise. VY Canis Majoris is so large that if our Sun were replaced by it, its surface would extend to (or maybe even pass) the orbit of Saturn.In Earth terms it would take 70 000 000 000 000 000 (70 quadrillion) Earths to fill up the VY Canis Majoris. Containing about 100 stars, the cluster is 2,300 light years away. The primary star is a B2V blue main sequence star, with a magnitude of 3.0. The pair have a combined magnitude of 10.2. Canis Major contains eight stars known to support planetary systems. It is a constellation that has had a lot of attention throughout history from cultures all over the world, because it contains far and away the brightest star in the entire night sky - Sirius, the Dog Star. The Canis Majoris Dwarf Galaxy is an irregular-shaped galaxy, as it is currently in the process of being ripped apart by the gravitational force of the Milky Way Galaxy. In ancient Egypt, Sirius was revered as the Nile Star, or the Star of Isis. For more information on these and other exoplanets, visit NASA's New Worlds Atlas, and The Open Exoplanets Catalogue. It lies at a distance of about 25,000.00 light years away in the constellation of Canis Major. FACTS, LOCATION & MAP The Milky Way is a disk that measures about 120,000 light years across, with a central bulge that has a diameter of about 12,000 light years. With a magnitude of 14.7, the dwarf galaxy is only visible in large telescopes. In 1976 American author Robert Temple wrote a controversial best selling book called The Sirius Mystery, claiming that the primitive Dogon tribe of Mali, West Africa, possessed knowledge of the existence of Sirius B, and many of its characteristics. The supposed small galaxy contains a relatively high percentage of red giant stars, and is thought to contain an estimated one billion stars in all. Omicron(2) Canis Majoris has the Arabic name Thanih al Adzari, second of the virgins. Some suggest that colours were sometimes interpreted differently in ancient times. The remaining five stars known to host planets in Canis Major are all very dim and far away, and the planets are all large gas giants. It has an apparent magnitude of -1.46 and lies at a distance of only 8.6 light years from the Sun. Let’s check out some more interesting facts about this dwarf galaxy. For many years astronomers thought the Large Magellan Cloud (LMC) was closest, but its title was supplanted in 1994 by the Sagittarius dwarf galaxy. The Canis Major Dwarf Galaxy can be called as a satellite of the Milky Way since it is the closest one to the center of our own galaxy. The Large Magellenic Cloud is one of the best examples of a dwarf galaxy. There are no meteor showers associated with the Canis Major constellation. With a magnitude of 14.7, the dwarf galaxy is only visible in large telescopes. Canis Major Dwarf Galaxy Facts. The Surface Temperature of Venus--Why is it so Hot? Let’s check out some more interesting facts about this dwarf galaxy. Initiated in the late 1990s, the 2MASS survey technique uses automated telescopes that scan the entire sky using infrared wavelengths. NGC 2362 - Spitzer Space Telescope - Infrared - January, 2009, NGC 2359 - Thor's Helmet - European Southern Observatory - October, 2012, NGC 2359 - Central Region - European Southern Observatory - October, 2012, ESO 489-056 - Dwarf Galaxy - Hubble Space Telescope - August, 2013, NGC 2217 - Barred Spiral Galaxy - European Southern Observatory - January, 2012, NGC 2280 - Spiral Galaxy - European Southern Observatory - December, 2009, NGC 2207 - Merging Galaxies - Hubble Space Telescope - November, 1999. They only managed to reach the galaxy with the use of experimental wormhole drives which allow fleets of ships to move from the Milky Way to the Canis Major galaxy. https://heasarc.gsfc.nasa.gov/docs/cosmic/nearest_galaxy_info.html, https://www.britannica.com/EBchecked/topic/1387426/Canis-Major-Dwarf-Galaxy, https://antwrp.gsfc.nasa.gov/apod/ap031117.html, www.sciencedaily.com/releases/2009/02/090218132145.html, Image Credit: **Observatoire de Strasbourg (France). a galaxy that has no elliptical or spiral shape, and hence it does not come under the Hubble Sequence of regular galaxy classes. Looking outside our galaxy, the first object of interest is ESO 489-056, a dwarf galaxy 16 million light years away containing about one billion stars. Earth is located inside the galactic disk which is around 26,000 light-years from the galactic center. 1. The Canis Major Dwarf is an irregular dwarf galaxy that is a satellite of our own Milky Way Galaxy.It lies in the constellation Canis Major at a distance of only 25,000 light-years from the Sun and 42,000 light-years from the center of the Milky Way. It is a B5I blue supergiant, another super luminous star that manages to shine brightly at magnitude 2.4, even though it is 2,000 light years away. Dante spoke of "the great scourge of days canicular". It is a B1III blue giant, also classified as a Beta Cephei variable, a star with a small but regular variability. A white dwarf is the evolutionary descendent of a red giant, leading to the speculation that in ancient times Sirius B was in fact a red giant that overshadowed Sirius, accounting for the red colour. ESO 489-056 - Dwarf Galaxy - Hubble Space Telescope - … HD 47186 c is about a third (0.35) the size of Jupiter, in a 1,354 day orbit, 223 million miles (357 million kms) from the star. In 2010, it was proposed by a team of astronomers that some 5 to 9 billion years ago, two smaller galaxies collided with each other and merged together, forming the Andromeda galaxy. Since Sirius B is far beyond naked eye visibility, the book suggests this knowledge was imparted to the Dogon when they were visited by aliens who lived in the Sirius star system. In the image of Pisces A, at left, the bright object at the top of the image is a distant background galaxy. Famed British astronomer Ian Ridpath conducted an excellent in depth study of Temple's theories called Investigating The Sirius Mystery. With a magnitude of -1.46, it is more than twice as bright as the next brightest star, magnitude -0.72 Canopus. Finally we have a pair of merging galaxies out at a distance of 86 million light years. It is an F8I yellow supergiant, yet another star with impressive luminosity, shining at magnitude 1.8 from 1,800 light years away, making it the third brightest star in the constellation. Pisces Dwarf (unclear if it is a satellite of the Andromeda Galaxy or the Triangulum Galaxy) Other Galaxies in the Local Group There some "oddball" galaxies in the Local Group that may not be gravitationally "bound" to either the Andromeda or the Milky Way galaxies. The galaxy, which is also known as Messier 51a, is interacting with NGC 5195 (Messier 51b), a dwarf galaxy, also in Canes Venatici. Messier 41 (M41, NGC 2287): this open cluster is estimated to be between 190 and 240 million years old. The Canis Major Dwarf Galaxy's location is 07h 12m 35.0 (R.A.) and -27d 40' 0 (Dec.). It has a magnitude of 2.0 and is 500 light years away. https://heasarc.gsfc.nasa.gov/docs/cosmic/nearest, https://www.nasaimages.org/luna/servlet/detail/NVA2~4~4~5151~105677:Canis-Major-Dwarf--A-New-Closest-Ga. A Galactic Quiz - Test Your Knowledge of These "Island Universes"! The Milky Way has over 200 billion stars in it, even though it’s one of the average sized galaxies in the Universe. Although Sirius is unmistakably blue/white in colour, nearly all ancient texts refer to it as red. HD 45364 c is 0.66 times the mass of Jupiter, in a 343 day orbit, 83 million miles (133 million kms) from the star. Whirlpool Galaxy – Messier 51 (NGC 5194) The Whirlpool Galaxy is one of the best known galaxies in the night sky. The supposed small galaxy contains a relatively high percentage of red giant stars, and is thought to contain an estimated one billion stars in all. It is a B1III blue giant, 450 light years away. Just below Sirius is the bright open star cluster M41 (NGC 2287). Violent Stars - A Stellar Gallery of the Violent Life of Stars. Canis Minor is the 71st largest constellation in the sky, occupying an area of 183 square degrees. This irregular galaxy is 42,000 light-years from the center of the Milky Way. The Andromeda Galaxy is not the closest galaxy to ours, and in fact there is one 100 times closer called Canis Major Dwarf Galaxy that is 42,000 light years far from the galactic center and it is a satellite dwarf of the Milky Way. The supposed small galaxy contains a relatively high percentage of red giants and is thought to contain an estimated one billion stars in all. A closeup of the central region of NGC 2359 reveals the giant Wolf Rayet star HD 56925, very bright in the left centre of the image below. The supposed small galaxy contains a relatively high percentage of red giant stars, and is thought to contain an estimated one billion stars in all. Astronomers also believe that the galaxy may have been connected with AM2, Dol 25 and other open clusters. What is a Neutron Star? ; Canis Minor would later be included in the 88 modern constellations, where it holds the 71 st place in regards to size, stretching for around 183 square degrees. M87, giant elliptical galaxy in the constellation Virgo whose nucleus contains a black hole, the first ever to be directly imaged. The Canis Major dwarf galaxy (CMa dwarf) or Canis Major overdensity (CMa overdensity) is a disputed dwarf irregular galaxy in the Local Group.It is in the same part of the sky as the constellation Canis Major.. The Canis Major Dwarf Galaxy is a galaxy in the Local Group, located in the same part of the sky as the constellation Canis Major.. It is a grand design spiral galaxy located about 31 million light years from the Milky Way. It's named Adara (or Adhara), from the Arabic "Aoul al Adzari", first of the virgins, as along with Wezen, Aludra and Thanih al Adzari, it forms an ancient Arabic grouping called "Al Adhara", The Virgins. 10 Facts about the Milky Way Emalee Couture 9/18/15 1. NU02 Canis Majoris is bright enough at magnitude 3.95 to be easily seen with the naked eye. It is formed out of gas containing metals or in association with dark matter. 4. Eta Canis Majoris is Aludra, Arabic for the virgin. It is an irregular galaxy, i.e. Interesting Andromeda Galaxy Facts: 11-20. At left is an illustration of the Milky Way, the Canis Major Dwarf, and the stream of material coming from the Galaxy. The Canis Major Dwarf Galaxy Dwarf Galaxy is ... thus depositing its 1 billion stars to the 200 t0 400 billion that are already part of our galaxy. It’s warped. Following faithfully at Orion's heels is Canis Major, the big dog. The galaxy contains a very high percentage of red giant starsâgiant stars with low mass and very low surface temperature. Part of the Orion family of constellations, it represents the larger of Orion's two hunting dogs. Unfortunately it is dangerously close to its parent star, only 4.6 million miles, taking only 4 days to complete an orbit, and presumably far too hot to support life. The galaxy contains a relatively high percentage of red giant stars, and is thought to contain an estimated one billion stars in all.. The name Sirius is Greek for scorching. However, the diminutive Canis Major Dwarf Galaxy is engaged in a gravitational tug-of-war with the Milky Way, and it seems highly unlikely that the smaller galaxy will escape being destroyed by … The next closest galaxy is the Sagittarius Dwarf Elliptical Galaxy, which was discovered in 1994. The Canis Major dwarf galaxy (CMa dwarf) or Canis Major overdensity (CMa overdensity) is a disputed dwarf irregular galaxy in the Local Group.It is in the same part of the sky as the constellation Canis Major.. The problem is that it should normally take at least 100,000 years for a red giant to become a white dwarf, so the colour discrepancy remains a mystery. a galaxy that has no elliptical or spiral shape, and hence it does not come under the Hubble Sequence of regular galaxy classes. Letâs check out some more interesting facts about this dwarf galaxy. Designated VY Canis Majoris, it has a diameter of over 1 billion miles (compared to our Sun's diameter of only 1 million miles), and classified as an M30 red hypergiant nearing the end of its life, and beginning to surround itself with a nebula of expelled gases, as shown in the Hubble image below. From a great distance of 441 light years, the B6III blue giant can only manage a magnitude of 4.11. Sirius, Alpha Canis Majoris (α CMa), is the brightest star in the night sky and one of the nearest star systems to Earth. The Canis Major Dwarf galaxy was discovered in the course of the investigation of this Ring, which was first discovered in 2002. Almost twice as far at 106 light years is HD 45364, a G8V yellow main sequence star similar to our Sun. 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