PIX4613880: Dwarf galaxy Holmberg IX in the Great Bear - Dwarf galaxy Holmberg IX in Ursa Major - The dwarf galaxy Holmberg IX is located 12 million years - light from Earth in the constellation of the Great Bear, just above the spiral galaxy M81. Of the 20,000 stars visible on this image obtained by the Hubble space telescope, more than 90% are young stars aged between 10 and 200 million years. The proximity of other galaxies, including M81, is believed to be at the origin of this recent star formation. This loose collection of stars is actually a dwarf irregular galaxy, called Holmberg IX. It resides just off the outer edge of M81, a large spiral galaxy in Ursa Major. This image was taken with Hubble's Advanced Camera for Surveys in early 2006. Holmberg IX is of the so - called Magellanic type of galaxy, as its size and irregularity in structure are similar to the Small Magellanic Cloud, a neighbour to our own Milky Way. It is suspected that the dwarf galaxy was created as a result of a galactic interaction between M81 and neighbouring galaxy M82. Of the more than 20,000 stars that can be resolved in this Hubble image, only about 10% are considered to be old stars with ages of billions of years. The rest are thought to be young stars with ages of only 10 - 200 million years. Simulations predict that the triplet M81, M82, and nearby NGC 3077 had a close passage 200 - 300 million years ago. This close encounter may have triggered the newer star formation that has occurred in Holmberg IX / Bridgeman Images
TEC4617543: Square d'Orleans, Paris 9th. Appoints in tribute to King Louis Philippe (1773-1850). In the romantic period, many famous families had made this residential complex a veritable phalanstere of artists. This space of time is very protected by the Historic Monuments, was built from 1830 to 1832 by the British architect Edward Crecy, who in 1829 had brought it to Melle Mars, famous actress of the Theatre Francais and formidable businesswoman. The Square is made up of three inner courtyards connected by vault passages (Ankillary Corridors) to the coffered ceilings. There were 46 apartments and artists' workshops, the last of which is still visible in the third courtyard. The central courtyard, monumental, is an English square in the style of Regent's Park in London, England. Composed of 4 buildings on 4 floors, lined with beds, planted with trees, it is decorated in its centre with green baskets and a jet of water fed by the water of the Ourcq Canal. / Bridgeman Images
PIX4614037: Statue of Claude Perrault in Paris: View of the statue of Claude Perrault (1613-1688), in the courtyard Napoleon du Louvre.. A doctor and architect, his statue represents him a comppas in one hand, and a drawing board in the other. Recommends to Colbert by his brother Charles Perrault, he participated in the elaboration of the Louvre colonnade with a view to restoring the eastern facade of the museum. Soon after, Colbert asked him to draw the plans for the Paris Observatory / Bridgeman Images
PIX4617791: Orion Nebula - M42 - M43 - The Great Nebula in Orion - Located 1500 years - light, the Orion Nebula is the closest region to the formation of stars of the Sun. Image obtained from the 2.2 meter MPG/ESO telescope of the La Silla Observatory. The Orion Nebula is the greatest of all HII clouds visible from our location within the Milky Way. With a gaseous repository of 10,000 suns, and illuminated by a cluster of hot young stars, the clouds of M42 glow with fantastic colors and shapes, giving us a birds eye view of one of the greatest star forming nurseries in our part of the galaxy. At a distance of 1500 light years, the Orion nebula is the nearest star - forming region to the Sun. This new image of the Orion Nebula was captured using the Wide Field Imager camera on the MPG/ESO 2.2 - metre telescope at the La Silla Observatory, Chile. This image is a composite of several exposures taken through a total of five different filters. Light that passed through a red filter, as well as light from a filter that shows the glowing hydrogen gas, is colored red. Light in the yellow - green part of the spectrum is colored green, blue light is colored blue and light that passed through an ultraviolet filter has been colored purple. The exposure times were about 52 minutes through each filter / Bridgeman Images
PIX4589711: Cassiopee Constellation - Constellation of Cassiopeia - Map of the constellation Cassiopee with its main Celestial objects. The Great Bear is indicated for the scale. Map showing the constellation of Cassiopeia with its main celestial objects. Constellation of Big Dipper is shown at scale / Bridgeman Images
PIX4589911: Constellations of Boob and Hunting Dogs - Constellations of Boots and Canes Venatici - The small constellation of Hunting Dogs and the constellations of Bovier and Big Bear. Canes Venatici (CVN, the Hunting Dogs) is an inconspicuous constellation introduced by Johannes Hevelius in 1690, nestling beneath the tail of Ursa Major. It represents the dogs Asterion and Chara, held on a leash by Booetes as the attack the Great Bear. The brightest star is Cor Caroli, named by Edmund Halley in memory of the king Charles I, King of England, or his son, Charles II. Booetes is also visible on the left / Bridgeman Images
TEC4593642: Pont Alexandre III (1886-1900), Paris 8th arrondissement. Tsar Alexander III of Russia (1845-1894) laid the first stone of the bridge in 1886, which was to be completed for the 1900 World Exhibition. One of the most beautiful bridges in Paris has a single-flight metal structure. / Bridgeman Images
LBY4593674: The Pont Alexandre IIIa Paris 8th arrondissement. Tsar Alexander III (1845-1894) laid the first stone of the bridge in 1886, which was to be completed for the 1900 World Exhibition. One of the most beautiful bridges in Paris has a metal structure of a single vole.Photography10/05/06. / Bridgeman Images