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La Esquina | El periódico del Sureste de Puerto Rico

Anuncian asombrosa lluvia de estrellas fugaces

Aug 08, 2016 Written by  Redacción LA ESQUINA

La Sociedad de Astronomía de Puerto Rico Inc. (SAPR) organización avalada por el NASA Puerto Rico Space Consortium, informa que durante las noches de esta semana habrá una lluvia de estrellas fugaces que podrá ser observada a simple vista desde cualquier parte de la isla en horas de la madrugada.

El asombroso evento celeste conocido en el campo de la astronomía como “Las Perseidas”, es el resultado del paso del planeta Tierra cada año por la órbita del cometa Swift-Tuttle, que está llena de partículas pequeñas de hielo que han sido liberadas por el cometa a través de los años. “Estos pedazos pequeños de hielo al entrar en contacto a gran velocidad con la atmosfera terrestre (entre 56 y 72 km/s), se calientan por la fricción hasta que se desintegran a gran altura, creando de esta manera un espectáculo visual durante varios segundos que luce como si fuesen estrellas fugaces”, comentó Juan Villafañe, presidente interino y oficial de comunicaciones de la SAPR.

La SAPR indicó que la cantidad de estrellas fugaces o meteoros por hora que se podrían apreciar durante esas noches en condiciones óptimas sería alrededor de 150 a 200, siendo este año uno de los más activos para la observación de las mismas. Sin embargo, esto no significa que se puedan observar 200 meteoros cada hora, debido a que hay muchos factores que afectan a este cálculo teórico. Uno de ellos por ejemplo, lo es el de la contaminación lumínica (por escasa que sea) que no deja ver los meteoros más débiles, que son precisamente los más abundantes.

“Para este año se esperan picos de actividad los días 12 y 13 de agosto, siendo la noche del 12 de agosto la más indicada para su observación. En esta ocasión las condiciones serán excelentes, a pesar de que tendremos una Luna saliendo de su fase creciente. Su brillo no perjudicará a la observación que se sugiere que se haga de madrugada entre las 11pm hasta antes que salga el Sol”, añadió Villafañe.

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