The next closest galaxy is the Sagittarius Dwarf Elliptical Galaxy, which was discovered in 1994. Preprint: astro-ph/0311010; Michele Bellazzini, Rodrigo A. Ibata, L. Monaco, Nicolas F. Martin, Michael J. Irwin, and Geraint F. Lewis, 2003. 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. Another dwarf galaxy surrounding the Milky Way is the Sagittarius Dwarf. 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. 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. This irregular galaxy is 42,000 light-years from the center of the Milky Way. In around a million years Arcturus will be so far from Earth it will no longer be visible to the naked eye. It’s now seen an elongated tidal stream around our galaxy and sits at about 70,000 light years away from the Sun. It is situated about 25,000 light-years from Earth. 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.. Sirius B is a white dwarf star that is closest to the Earth. Canis Major Dwarf Galaxy: first discovered in 2003, this irregular galaxy contains around a billion stars with a huge number of red giants. 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. It was one of the original constellations known to the ancient Greeks. ; 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. 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. FACTS, LOCATION & MAP . At left is an illustration of the Milky Way, the Canis Major Dwarf, and the stream of material coming from the Galaxy. It is about 50,000 light-years from the Milky Way's core. Key Facts & Summary. M79 is believed to have originated outside of the Milky Way, in the Canis Major Dwarf Galaxy to be precise. The star system consists of a main sequence star Sirius A and Sirius B. 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 Milky Way Galaxy is estimated to be about 10,000 times more massive than the Sagittarius Galaxy. It is one of the largest known stars in the Milky Way galaxy. 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 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. In the image of Pisces A, at left, the bright object at the top of the image is a distant background galaxy. Of course, astronomers still debate about the specifics and classification of these minor galaxies, including this one. 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 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. Arcturus is derived from the ancient Greek words arktos, meaning bear, and ouros, meaning guardian. However, none of the nine other hypergiants even holds a candle to sheer size and scale associated with VY Canis Majoris. 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 lies in the second quadrant of the northern hemisphere (NQ2) and can be seen at latitudes between +90° and -75°. 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. The Moon befind the finger. Sirius Black. In Fact, No Other Star Compares. La galaxie naine du Grand Chien est une galaxie située dans la constellation du Grand Chien. The Arcturus Stream is thought to be the remnants of a dwarf galaxy that collided with the Milky Way. The white dwarf star 3. To appear in: Monthly Notes of the Royal Astronomical Society. The Canis Major Dwarf galaxy was discovered in the course of the investigation of this Ring, which was first discovered in 2002. 2. 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. Ursa Minor represents a small bear with a long tail. Sagittarius Dwarf Elliptical Galaxy. 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. 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. 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. 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. Our sun compared in size to the orange giant star Arcturus. Find out where our Sun - the Solar System - is located in the Milky Way galaxy! Distance Information. Canis Major Star Facts. The neighboring constellations are Cancer, Gemini, Hydra, and Monoceros. The Canis Major Dwarf Galaxy, which was discovered in 2003, is the Milky Way's nearest neighbor. 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 caveat of these stars are that they are catalogued on this site. The stars mentioned are from the Hipparcos catalogue or have been added because of their special status. The galaxy contains a relatively high percentage of red giant stars, and is thought to contain an estimated one billion stars in all.. Canis Major is a southern constellation, visible in its entirety from all locations south of latitude 60°N. 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. It is in the same part of the sky as the constellation Canis Major. 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. The Canis Major dwarf galaxy (CMa dwarf) or Canis Major overdensity (CMa overdensity) is a disputed dwarf irregular galaxy in the Local Group. 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 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. Arcturus Radius. Autres caractéristiques; Type: Irr Distance environ 7,7 kpc (∼25 100 a.l. Sirius is a two-star system within 8.6 light years from Earth in the constellation Canis Major. Sirius belongs to the Canis Major constellation and is the brightest star visible from the Earth at night. 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. Each galaxy contains about 10 million stars. The Milky Way galaxy is an incredible 13 billion years old formation of billions of stars and planets. VY Canis Majoris is around 4,000 light years from Earth in the constellation of Canis Major. 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. Blogs / By My Telescopio. Magellanic Clouds. The blue colour is a sign they are young, less than 100 million years old. A dwarf galaxy remnant in Canis Major: the fossil of an in-plane accretion onto the Milky Way.