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FLO4572478: Jean Sylvain Bailly, Mayor of Paris, French astronomer, mathematician, freemason and revolutionary, 1736-1793. In costume of depute in the States-General, 1789. Handcoloured lithograph from Le Bibliophile Jacob aka Paul Lacroix's Costumes Historique de la France (Historical Costumes of France), Administration de Librairie, Paris, 1852. / Bridgeman Images
PIX4572490: The smallest stars - Artist's view - The smallest stars. Artwork - Comparison to the scale of the smallest stars with Jupiter and the Sun. From left to right: Jupiter, a brown dwarf (same size as Jupiter but 50 times more massive), dwarf L (younger brown dwarf), red dwarf, Sun. From left to right: Jupiter (a failed star), a brown dwarf (same size as Jupiter but 50 times more massive), a “” L”” dwarf (brown dwarf younger), a red dwarf and the sun for comparison / Bridgeman Images
PIX4572527: Brown dwarf with asteroid ring - Artist's view of a brown dwarf star surrounded by an asteroid belt. In the foreground, a primitive exoplanet illuminated by the star. This brown dwarf is host to a disk composed primarily of asteroids and boulders. The light from this dwarf is barely enough to illuminate the surface of this primitive planet. At a distance of about 1.5 million miles, the orbit of this planet is aligned to the plane of the rings with the result that they appear as a fuzzy line occulting the glowing face of this brown dwarf / Bridgeman Images
PIX4572539: Brown dwarf with a large debris ring - Artist's view of a brown dwarf star surrounded by a disc of dust and rocks. In the foreground, a primitive exoplanet illuminated by the star. This imaginary high - mass brown dwarf has a larger disk than the previous renderings. The perspective is from the equator of an airless planet, orbiting the brown dwarf at a distance of about 4 million miles. This planet's orbit is very nearly aligned to the plane of the rings, hence the debris appears as a sword - like straight line / Bridgeman Images
FLO4572564: Paul Francois Jean Nicolas, Viscount de Barras (1755-1829), leader of the Directory. In the uniform of a member of the Executive Board. Handcoloured lithograph from Le Bibliophile Jacob aka Paul Lacroix's Costumes Historique de la France (Historical Costumes of France), Administration de Librairie, Paris, 1852. / Bridgeman Images
PIX4572573: Artist's view of a nova recurrente - Recurrent nova. Artwork - Artist's view of a nova, a white dwarf star that attracts the material of a companion star at the end of life, a red giant, and compresses these gases and then releases a nuclear fusion reaction releasing a huge amount of energy in the form of a brief, extremely bright light. A nova recurrente is a star with at least two nova-type explosions / Bridgeman Images
PIX4572591: Nova de l'Eagle - Nova Aquilae. Artwork - Artist's view of a nova, a white dwarf star that attracts the material of a companion star at the end of life, a red giant, and compresses these gases and then unleash a nuclear fusion reaction releasing a huge amount of energy in the form of a brief, extremely bright light. Here the artist showed the binary system just before the explosion of the nova. The artist's illustration depicts a classical nova binary system just before an explosion on the surface of the white dwarf. Classical novas occur in a system where a white dwarf closely orbits a normal, companion star. In this illustration, gas is flowing from the large red, companion star into a disk and then onto the white dwarf that is hidden inside the white area. As the gas flows ever closer to the white dwarf, it gets increasingly hotter, as indicated by the change in colors from yellow to white. When the explosion occurs, it engulfs the disk of gas and the red companion star / Bridgeman Images
FLO4572669: Stephanie Felicite du Crest de St. Aubin, Countess de Genlis, French writer, harpist and educator 1746-1830. Handcoloured lithograph from Le Bibliophile Jacob aka Paul Lacroix's Costumes Historique de la France (Historical Costumes of France), Administration de Librairie, Paris, 1852. / Bridgeman Images
FLO4572684: Napoleon Bonaparte, General en Chef, in uniform of General of the Army of Italy, Napoleonic Wars. Handcoloured lithograph from Le Bibliophile Jacob aka Paul Lacroix's Costumes Historique de la France (Historical Costumes of France), Administration de Librairie, Paris, 1852. / Bridgeman Images
PIX4572699: Artist's view of an eruptive star - Flare star. Artwork - An eruptive star is a variable star that can manifest a dramatic and imforeseeable increase in luminosite from a few minutes to a few hours. From X-rays to radios, the spectrum increases in intensity. Eruptive stars are red dwarves, although recent research indicates that brown dwarves may also be capable of eruptions. A flare star is a variable star which can undergo unpredictable dramatic increases in brightness for a few minutes or a few hours. The brightness increase is across the spectrum, from X - rays to radio waves. Flare stars are dim red dwarfs, although recent research indicates that brown dwarfs might also be capable of flaring, Dixon, Don (b.1951) / Bridgeman Images
PIX4572713: Artist's view of a fugitive star - A runaway star in the Large Magellanic cloud - The star HE0457 - 5439 is a massive star in the Grand Cloud of Magellan; it is a star escaping from this galaxy at a speed of 2.6 Million km/h Background image obtained at the observatory of La Silla in Chile; the star fleeing has been added on the image. The star HE0457 - 5439 is a massive star wich lies closer to one of the Milky Way satellite galaxies, the Large Magellanic Cloud, located 160,000 light - years away from us. This is a runaway star, moving at more than 2.6 million kilometers per hour. Astronomers find it likely for the star to have reached its present position had it been ejected from the centre of the LMC. The background image has been obtained at La Silla observatory, the star moving has been added / Bridgeman Images