An analysis of the stars' colours reveals that the galaxies contain about 20 to 30 bright blue stars. Canis Minor was at first cataloged by the Greco-Roman astronomer Ptolemy, as an asterism, in his 2 nd century Almagest, that was comprised out of 48 constellations. It lies in the second quadrant of the northern hemisphere (NQ2) and can be seen at latitudes between +90° and -75°. The blue colour is a sign they are young, less than 100 million years old. The galaxy contains a relatively high percentage of red giant stars, and is thought to contain an estimated one billion stars in all.. 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. 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.. Distance Information. Sirius belongs to the Canis Major constellation and is the brightest star visible from the Earth at night. At over 1,540 times the size of the Sun, VY Canis Majoris is the largest known star (LINK 2) viewed by earthbound scientists and astronomers. Arcturus is derived from the ancient Greek words arktos, meaning bear, and ouros, meaning guardian. Canis Major Dwarf Galaxy: first discovered in 2003, this irregular galaxy contains around a billion stars with a huge number of red giants. 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.. The Milky Way galaxy is an incredible 13 billion years old formation of billions of stars and planets. 2. Another dwarf galaxy surrounding the Milky Way is the Sagittarius Dwarf. In fact, before the galaxy itself was discovered, astronomers conducting the Sloan Digital Sky Survey found a wispy ring of stars circling the Milky Way, which was dubbed the Monoceros Ring. 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. Explore the galaxy in a stunning three dimensional map based on NASA's artistic impression of the Milky Way galactic structure. Magellanic Clouds. Arcturus Radius. Canis Major is a southern constellation, visible in its entirety from all locations south of latitude 60°N. In Fact, No Other Star Compares. Photos are taken by NASA spacecraft and ground based telescopes like Hubble Space Telescope, Chandra X-Ray, Herschel Space Observatory and the Spitzer Space Telescope. Ursa Minor represents a small bear with a long tail. It is about 50,000 light-years from the Milky Way's core. A dwarf galaxy is a small galaxy composed of about 1000 up to several billion stars, as compared to the Milky Way's 200–400 billion stars. To appear in: Monthly Notes of the Royal Astronomical Society. 4. Find out where our Sun - the Solar System - is located in the Milky Way galaxy! The neighboring constellations are Cancer, Gemini, Hydra, and Monoceros. A dwarf galaxy remnant in Canis Major: the fossil of an in-plane accretion onto the Milky Way. ; 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. Take a look at some facts about the Sirius star that explain its extremely bright appearance. Up until 2003, it was thought to be the closest galaxy to the Milky Way, although this spot has recently been taken by the Canis Major Dwarf Galaxy, which is also being devoured by the Milky Way. Of course, astronomers still debate about the specifics and classification of these minor galaxies, including this one. The white dwarf star 3. It’s now seen an elongated tidal stream around our galaxy and sits at about 70,000 light years away from the Sun. Our solar system, including our sun and all of the planets and objects within it, is just a small part of the Milky Way galaxy. If we count these satellites of the Milky Way as galaxies, then the next closest galaxy is Canis Major Dwarf, which is about 25,000 light years away. It was discovered in 1994 and just like the Canis Major dwarf galaxy, the massive pull of the Milky Way’s gravity has been tearing it apart over billions of years. Sagittarius Dwarf Elliptical Galaxy. There are about 19 satellite galaxies in the next major galaxy, called Andromeda Galaxy (M31). The star system consists of a main sequence star Sirius A and Sirius B. Aside from the star cluster NGC 2362, notable deep sky objects in Canis Major include Messier 41, an open cluster with a great number of stars brighter than the Sun within the space of only 25 light-years across, and the Canis Major Dwarf galaxy, an irregular galaxy which is also the closest satellite galaxy to Earth and contains a high percentage of red giants. It is believed that Sirius Black from Harry Potter who has the unique ability to transform into a black dog could have been inspired by the ‘Sirius B’ star. The galaxies that are bound to the Milky Way galaxy include a number of dwarf galaxies, which are smaller stellar cities that have spherical or irregular shapes. At left is an illustration of the Milky Way, the Canis Major Dwarf, and the stream of material coming from the Galaxy. In the image of Pisces A, at left, the bright object at the top of the image is a distant background galaxy. Canis Minor is the 71st largest constellation in the sky, occupying an area of 183 square degrees. In fact, it’s the third closest galaxy after the Sagittarius Dwarf and the Canis Major Dwarf Galaxies. VY Canis Majoris is around 4,000 light years from Earth in the constellation of Canis Major. The Canis Major dwarf galaxy (CMa dwarf) or Canis Major overdensity (CMa overdensity) is a disputed dwarf irregular galaxy in the Local Group. Blogs / By My Telescopio. 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. The Canis Major Dwarf Galaxy Dwarf Galaxy is believed to contain one billion stars in all, a relatively high-percentage of which are in the Red Giant Branch phase of their lifetimes. Canis Major Star Facts. It is situated about 25,000 light-years from Earth. It is in the same part of the sky as the constellation Canis Major. NGC 2359 (Thor’s Helmet): centered around a hot giant on the verge of exploding, this emission nebula is located 15,000 light-years from us. It is one of the largest known stars in the Milky Way galaxy. The constellation is named after Ida, who nursed the infant Zeus (king of the ancient Greek gods), although it is not clear why she is depicted as a little bear. Autres caractéristiques; Type: Irr Distance environ 7,7 kpc (∼25 100 a.l. The Canis Major Dwarf galaxy was discovered in the course of the investigation of this Ring, which was first discovered in 2002. FACTS, LOCATION & MAP . The Sagittarius Dwarf Elliptical Galaxy (SagDEG, Sag dSph) is a satellite galaxy of the Milky Way and the second closest external galaxy after the Canis Major Dwarf.It is populated, as is usual for a dwarf elliptical galaxy, by old yellowish stars.Obscured by large amounts of dust in the galactic plane, SagDEG was discovered as recently as 1994. This irregular galaxy is 42,000 light-years from the center of the Milky Way. 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. 15 Interesting and fun facts about birds; Mind-Blowing Facts About Our 8 Planets For Kids; Top 5 Space Discoveries Made By Amateur Astronomers ; 5 Interesting And Fascinating Facts About Our Milky Way. M79 is believed to have originated outside of the Milky Way, in the Canis Major Dwarf Galaxy to be precise. Each galaxy contains about 10 million stars. 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 … If you know of a star that is nearer or further then do let me know in the comments and I'll add it to the site. Preprint: astro-ph/0311010; Michele Bellazzini, Rodrigo A. Ibata, L. Monaco, Nicolas F. Martin, Michael J. Irwin, and Geraint F. Lewis, 2003. The Milky Way Galaxy is estimated to be about 10,000 times more massive than the Sagittarius Galaxy. Our sun compared in size to the orange giant star Arcturus. Here are some interesting facts about the star Sirius: 1. Fun Facts; Introduction: For thousands of years, people of all different cultures around the world have gazed up at the skies and watched the beauty of our Milky Way galaxy. CMa (Canis Major) Dwarf: Données d’observation - Époque J2000.0; Ascension droite: 07 h 12 m 35 s: Déclinaison −27° 40′ 00″ Constellation: Grand Chien: Localisation dans la constellation : Grand Chien. VY Canis Majoris is a red hypergiant with a radius of around 1,500 times larger than the sun. Sirius is a two-star system within 8.6 light years from Earth in the constellation Canis Major. The caveat of these stars are that they are catalogued on this site. The Canis Major Dwarf Galaxy, which was discovered in 2003, is the Milky Way's nearest neighbor. The Moon befind the finger. HIP 34074, Canis Major's Furthest Star. However, none of the nine other hypergiants even holds a candle to sheer size and scale associated with VY Canis Majoris. Key Facts & Summary. It was one of the original constellations known to the ancient Greeks. 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. La galaxie naine du Grand Chien est une galaxie située dans la constellation du Grand Chien. Sirius Black. Hypergiant stars such as VY Canis Majoris are extremely rare in our galaxy, in fact most stars in the Milky Way are smaller than the sun. In around a million years Arcturus will be so far from Earth it will no longer be visible to the naked eye. The next closest galaxy is the Sagittarius Dwarf Elliptical Galaxy, which was discovered in 1994. The Arcturus Stream is thought to be the remnants of a dwarf galaxy that collided with the Milky Way. Sirius B is a white dwarf star that is closest to the Earth. The stars mentioned are from the Hipparcos catalogue or have been added because of their special status.
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