Sky Map Online. Tailles relatives de quelques planètes et étoiles : Les planètes et leurs satellites. Fun In Space - Zero Gravity. The Orbit Simulator. Star Size Comparison HD. Amazing Hubble Pictures. Photograph courtesy John Spencer (Lowell Observatory) and NASA In 1999, to commemorate the ninth anniversary since its launch, the Hubble Space Telescope took this dramatic snapshot of Jupiter’s moon Io and its shadow sweeping across the gas giant’s turbulent atmosphere. About the size of Earth’s moon, Io is the most volcanic body in the solar system and orbits 500,000 kilometers above the planet’s cloud tops.
Rovio takes its popular game to the final frontier with Angry Birds Space, launching March 22, in partnership with National Geographic Books and NASA. Purchase the official companion book National Geographic Angry Birds Space. Google Sky. Carte du ciel. Cette carte du ciel vous permet de recréer l’aspect du ciel à un moment donné (entre 1600 et 2400) et depuis n’importe quel point de la Terre. Elle indique la position du Soleil, de la Lune, des planètes Mercure, Vénus, Mars, Jupiter, Saturne, et des 1377 étoiles les plus brillantes du ciel. Les algorithmes sont basés sur le livre « Calculs astronomiques à l’usage des amateurs », Jean Meeus, Société astronomique de France, Paris, 1986. Pourquoi l’est et l’ouest sont-ils inversés sur la carte ? Une carte traditionnelle est conçue pour être vue d’en haut : les points cardinaux sont placés de manière classique, l’est à droite et l’ouest à gauche.
Une carte du ciel est conçue pour être vue d’en bas, couché(e) dans l’herbe, la tête tournée vers les étoiles : si vous pointez les pieds vers le sud, l’est sera vers la gauche et l’ouest vers la droite, soit l’inverse d’une carte traditionnelle. En cas de problème ou de question, consultez l’aide en ligne ou contactez moi : contact. Des images impressionnantes de la Terre vue depuis... The Orbit Simulator. Planetarium - Interactive star map and virtual sky. Solar System Scope.
Hubble Views Grand Star-Forming Region. SINGS Hubble tuning fork poster. This poster displays the 75 SINGS galaxies arranged in a tuning fork based on their optical morphology. The color images of each galaxy were created from the SINGS IRAC 3.6um (blue), IRAC 8.0um (green), and MIPS 24um (red) images. This poster represents summarizes a large amount of work carried about by the SINGS team in writing the original proposal, planning the observations, reducing the data, and many studies devoted to understanding what the images mean.
Most of the work for the poster itself was carried about by Karl Gordon with significant help from Robert Hurt. Many SINGS team members and Spitzer Science Center staff contributed helpful comments and advice. The Spitzer Science Center has a feature article on this poster. Questions about the poster should be directed to Karl Gordon (kgordon@stsci.edu). More details on how the poster was constructed will be added soon. The poster has been professionally printed in quantity by TrojanLitho. The poster is sized to print 36" by 42". The Very Curious Creation of an Ageing Star. The NASA/ESA Hubble Space Telescope has made a rare celestial catch. Close to a bright, nearby star in this image, the bizarre, whorl-shaped object known as IRAS 22036+5306 has been captured during a brief tumultuous period late in a star's life.
Inside IRAS 22036+5306 lies an aged star that has coughed off almost all of its outer material, forming a cloud in space. Hidden under this veil, the dense, still-burning, exposed core of the star grows hotter. Encircling the star is a torus consisting partly of castoff material, as well as possibly the grainy remnants of comets and other small, rocky bodies. Twin jets spout from the star’s poles and pierce this dusty waist. The jets contain gobbets of material — typically about ten thousand times the mass of the Earth — hurling outwards at a speed of nearly 800 000 kilometres per hour.
IRAS 22036+5306 is making the transition through the protoplanetary, or preplanetary, nebula phase. Credit: Formation du système solaire. Mars. Mars Curiosity - MSL. Jupiter. Saturne. Terre. Venus. Lune. Comètes, astéroïdes et météorites. SLOOH SpaceCamera - Live Event. WIKISKY.ORG. Premières photos de la navette spatiale amarrée à l’ISS. Astronomie en questions. Ciel et Espace.