hubble space telescope

hubble space telescope

Butterfly Nebula in Motion (1997-2010) [720p]

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Description

This video begins with a realistic picture of the Butterfly Nebula obtained with the Hubble Space Telescope. In three dimensions, its appearance can be imagined as a hourglass seen from the side. The main body of the nebula (the "hourglass") is visible as a reddish elongated structure (mainly due to emission of hydrogen). Jets streaming along the length of the hourglass can be seen as an greenish color and is mainly due to oxygen atoms which doubly ionized by the shock of the jet against the "walls" of the nebula gas. The second part of the animation is a computer recreation of the entire system, which contains two stars orbiting the center of the nebula. and the formation and rotation of the jet ("lighthouse effect"). It ends with the real video of the jet motion observed with the Nordic Optical Telescope located at the Astrophysical Observatory on the island of La Palma between 1997 and 2010. credit: Gabriel Pérez / Instituto de Astrofisica de Canarias source: http://www.iac.es/divulgacion.php?op1=16&id=667