jueves, 18 de febrero de 2010

NASA.............PRIMERAS IMÁGENES DEL OBSERVATORIO "WISE" DE LA GALAXIA ANDRÓMEDA

Hola amigos: A VUELO DE UN QUINDE EL BLOG; la agencia espacial norteamericana NASA , todos los días nos enriquece con sus nuevos descubrimientos espaciales por medio de sus telescopios y observatorios espaciales, nuevamente el Observatorio WISE o Wide-field Infrared Survey Explorer nos muestra en la imagen de nuestra galaxia vecina ANDRÓMEDA.
La imnesa galaxia Andrómeda , nuestra vecina, también conocida como Messier 31 o simplemente M31, es captada por completo en esta nueva imagen del Explorador de Revisión Amplio de campaña Infrarrojo de la NASA, o WISE. El mosaico cubre un equivalente de área con más de 100 lunas llenas, o cinco grados a través del cielo. WISE ha usado todos los cuatro de sus detectores infrarrojos para capturar este cuadro(imagen) (3.4-y la luz de 4.6 micras es coloreado azul; la luz de 12 micras es verde; y la luz de 22 micras es roja). Toques de luz azules maduran estrellas, mientras el polvo de espectáculo amarillo y rojo acalorado por estrellas recién nacidas, masivas.

Versión de la NASA
In English:

Our Neighbor Andromeda:

The immense Andromeda galaxy, also known as Messier 31 or simply M31, is captured in full in this new image from NASA's Wide-field Infrared Survey Explorer, or WISE. The mosaic covers an area equivalent to more than 100 full moons, or five degrees across the sky. WISE used all four of its infrared detectors to capture this picture (3.4- and 4.6-micron light is colored blue; 12-micron light is green; and 22-micron light is red). Blue highlights mature stars, while yellow and red show dust heated by newborn, massive stars.

Andromeda is the closest large galaxy to our Milky Way galaxy, and is located 2.5 million light-years from our sun. It is close enough for telescopes to spy the details of its ringed arms of new stars and hazy blue backbone of older stars. Also seen in the mosaic are two satellite galaxies, known as M32, located just a bit above Andromeda to the left of center, and the fuzzy blue M110, located below the center of the great spiral arms. These satellites are the largest of several that are gravitationally bound to Andromeda.

The Andromeda galaxy is larger than our Milky Way and contains more stars, but the Milky Way is thought to perhaps have more mass due to its larger proportion of a mysterious substance called dark matter. Both galaxies belong to our so-called Local Group, a collection of more than 50 galaxies, most of which are tiny dwarf systems. In its quest to map the whole sky, WISE will capture the entire Local Group.

Image credit: NASA/JPL-Caltech/UCLA
› Larger image

Guillermo Gonzalo Sánchez Achutegui
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