miércoles, septiembre 16, 2009

Andrómeda a la vista

Me quedo alucinada viendo imágenes como esta. Es la Galaxia Andrómeda y al parecer es una espiral gigante. Ahora los expertos de la Sociedad de la Astronomía han dicho que durante esta semana esta imagen podemos verla en vivo y en directo. No han aclarado si nos hará falta un buen telescopio para conseguirlo, aunque me temo que si. Sería un buen momento para irse a pasar el fin de semana a La Palma, en Canarias y darse un paseito hasta el Observatorio del Roque de los Muchachos donde este mismo año se ha inaugurado el telescopio más grande y potente del mundo.... ¿No es mala idea no?

*Si alguien quiere saber más de Andrómeda.... Esto es lo que decía hoy El País:

“M31 (NGC 224) conocida también como la galaxia de Andrómeda, es una espiral gigante. Es la más grande de las que forman el llamado Grupo Local, que consistiendo en unas 30 galaxias pequeñas a la que se suma la Galaxia del Triángulo y nuestra Vía Láctea, siendo incluso más grande que ésta última. Su magnitud es 3.4 y es visible a simple vista. Se acerca a la Tierra a una velocidad de 140 kilómetros por segundo, por lo que existe la posibilidad de que dentro de unos 3.000 a 5.000 millones de años esta galaxia pueda colisionar con la nuestra, llegando a fusionarse, y formar así una galaxia elíptica gigante.”

8 comentarios:

Jordi dijo...

Noo.. no hará falta ningún telescopio. Ahí está la gracia. La galaxia de Andrómeda es el objeto más lejano que puede verse a simple vista.. a condición de tener un buen cielo. No esperéis verla desde dentro de una ciudad, ni tansiquiera un pueblo grande. Hace mucho tiempo que la contaminación lumínica (también puede llamarse, derroche energético) privó a los habitantes de las urbes de la Fuente Primera de inspiración, tanto de poetas, com de científicos: el firmamento estrellado. Cuando tengáis necesidad de encontrar vuestros orígenes, simplemente escapad bien lejos de la ciudad, esperad a la noche... y mirad al cielo. (Y sí, si es la época adecuada, y alguién os indica donde, l aGalaxia de Andrómeda puede llegar a verse a simple vista... los antiguos griegos ya la conocían ;)

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