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Imágenes del Telescopio Espacial Hubble de la estructura de las nubes de Neptuno en 1994
Science (New York, N.Y.)
|June 23, 1995
Resumen
Las observaciones del Telescopio Espacial Hubble de Neptuno muestran cambios atmosféricos significativos desde 1989. La Gran Mancha Oscura desapareció, reemplazada por una nueva mancha oscura del norte y brillantes características de la banda de metano.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Dinámica de la atmósfera Dinámica de la atmósfera
- El sistema solar externo del sistema solar externo.
Sus antecedentes:
- La atmósfera de Neptuno exhibe cambios dinámicos con el tiempo.
- Las observaciones anteriores realizadas por la nave espacial Voyager en 1989 proporcionaron una línea de base para las características atmosféricas.
Objetivo del estudio:
- Para documentar y analizar los cambios en las características atmosféricas de Neptuno.
- Para comparar las condiciones atmosféricas actuales con los datos históricos de la misión Voyager.
Principales métodos:
- Utilizó el Telescopio Espacial Hubble para obtener imágenes de Neptuno.
- Datos adquiridos a través de seis longitudes de onda distintas en octubre y noviembre de 1994.
Principales resultados:
- Características atmosféricas observadas no presentes durante el encuentro de la Voyager en 1989.
- La Gran Mancha Oscura, una característica prominente de 1989, ya no era visible.
- Una nueva y grande mancha oscura apareció en el hemisferio norte de Neptuno.
- Se detectaron características brillantes discretas en longitudes de onda de la banda de metano.
Conclusiones:
- La atmósfera de Neptuno es altamente variable, con una evolución significativa de las características.
- La desaparición de la Gran Mancha Oscura y la aparición de nuevas características resaltan el dinamismo atmosférico.
- El Telescopio Espacial Hubble proporciona datos cruciales para el monitoreo de las atmósferas de los planetas exteriores.
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