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Download 101 Fun Facts on Astronomy by Kevin Manning PDF

By Kevin Manning

Astronomy is the main fascinating and enjoyable subject within the universe. after all, i'm a section biased, yet don't you settle? utilizing a telescope to determine the invisible and glance a long way again in time, exploring the universe to benefit approximately meteors, the Moon, comets, asteroids, big name clusters, nebulae and galaxies, and attempting to comprehend the function of black holes, darkish topic, and darkish power, are all lined during this relaxing textual content.

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Basta con que lleves calzado cómodo, guantes y gorro para protegerte del frío aire nocturno, ¡y sonríe! Si vives en una ciudad o en un barrio residencial de las afueras de la ciudad, es probable que en tu cielo nocturno haya mucha contaminación lumínica, así que puedes encontrar mejores condiciones de observación si vas a un punto oscuro del campo. Es probable que tu club de astronomía ya haya elegido un buen lugar. Cuando los miembros del club coincidáis en ese punto solitario, podrás disfrutar de la seguridad que implica formar parte de un grupo.

En español puedes echar un vistazo a la obra La Maratón Messier, de Don Machholz (Akal, 2003). Desde los tiempos de Messier, los astrónomos han confirmado la existencia de miles de objetos del cielo profundo, término que utilizan los aficionados para cúmulos de estrellas, nebulosas y galaxias, y que los distinguen de las estrellas y planetas. Como Messier no los registró, los astrónomos se refieren a dichos objetos por sus números, tal y como aparecen en otros catálogos. Puedes encontrar muchos de estos objetos enumerados en guías de observación y mapas de estrellas por sus números NGC (del nombre en inglés de Nuevo Catálogo General) y del IC (Índice del Catálogo).

En realidad, lo que ves es el destello de luz de una pieza diminuta de polvo de cometa que pasa a toda velocidad por la atmósfera. Otro puntito de luz se mueve de forma lenta y constante por el cielo. ¿Es un satélite espacial, como el telescopio espacial Hubble, o un avión de pasajeros que vuela a una gran altitud? Si tienes unos prismáticos, quizá puedas diferenciarlos: la mayoría de los aviones de pasajeros tienen luces de dirección y sus formas pueden percibirse. Si vives en el campo, o en la costa, lejos de centros turísticos y urbanizaciones, en una zona de llanuras o en la montaña, lejos de pistas de esquí iluminadas, puedes ver miles de estrellas.

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