Astrometría e Historia de la Astronomía

José Gómez Castaño 



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  • Trabajos sobre Astrometría
  • Trabajos sobre Historia
  • Mis libros preferidos
  • Ocultaciones Estelares

  • Astronomía

    Astrometría de Cometas
    Cuadernos de Bitácora Estelar
    El Beso de la Luna
    El Muro de Planck
    El ojo en el cielo
    Cuaderno de Observación
    Historias de la Ciencia
    Por la boca muere el Pez
    Cartografía Lunar
    Tránsitos de Venus
    Historia LIADA
    Comunidad Virtual Cielo Oscuro
    Cielo Oscuro


    Blog de la IDEE
    Blog Descartes

    Mi otro blog


    Guía rápida para el observador de ocultaciones por asteroides

    Objetivo Registrar la desaparición y reaparición de una estrella al ser ocultada por el paso de un asteroide. Esto proporciona información sobre la trayectoria, forma y dimensiones del asteroide.

    1.- Localizar el lugar de observación. Hay dos factores que inciden sobre la elección del lugar de observación. La sombra proyectada por un asteroide es muy estrecha, a penas unos kilómetros y por esta razón hay que delimitar con cuidado esta zona. Por otro lado, la posición del asteroide no se conoce con precisión, lo que introduce gran incertidumbre. A partir de la trayectoria prevista, habrá que situarse en algún lugar a lo ancho de la zona de sombra, centrándose en la de mayor posibilidad.

    2.- Tomar una fuente de tiempos fiable. Para registrar los instantes de desaparición y reaparición de la estrella, hay que sincronizar nuestro cronómetro o sistema de medida. Las señales horarias de Radio Nacional de España o utilizar un programa para sincronizar el ordenador con un reloj atómico, tipo Dimension4, son las mejores soluciones.

    3.- Localizar la estrella a ser ocultada con la ayuda de un buen Atlas estelar

    4.- Llegar con tiempo al lugar de observación elegido y localizar la estrella lo más fielmente posible.

    5.- Comenzar la observación 15 minutos antes de la hora prevista y finalizarla 15 minutos después. En caso de observarse la ocultación, anotar los instantes de desaparición y reaparición de la estrella. Si no se ha observado ocultación, esta se registra como negativa y tiene valor. Las observaciones pueden ser visuales y mediante vídeo, teniendo ambas mucho valor.

    ¿Qué hay que registrar y enviar a la EAON o IOTA?

    Usando los partes de observación para la EAON o la IOTA, es importante enviar las ocultaciones positivas y las negativas. En ambos casos indicar la posición geográfica desde la que se observa, y los instantes observados en T.U.

    Efemérides completas

    Manual oara observación de Ocultaciones Estelares

    2007-02-01 14:22 | Categoría: | 30 Comentarios | Enlace

    Referencias (TrackBacks)

    URL de trackback de esta historia


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    Con esta guia rapida los que somos aficionados a los asteroides aprenderemos mas y podremos observarlos aun mejor. Hay alguna manera de hacer fotos a los asteroides?

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