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Thursday January 19th 2012

2010 Perseids over the VLT

ESO/S. Guisard (www.eso.org/~sguisard)

Source, ESO VLT Picture of the week:

Despite the Perseids being best visible in the northern hemisphere, due to the path of Comet Swift-Tuttle’s orbit, the shower was also spotted from the exceptionally dark skies over ESO’s Paranal Observatory in Chile. In order not to miss any meteors in the display, ESO Photo Ambassador Stéphane Guisard set up 3 cameras to take continuous time-lapse pictures on the platform of the Very Large Telescope during the nights of 12–13 and 13–14 August 2010. This handpicked photograph, from the night of 13–14 August, was one of Guisard’s 8000 individual exposures and shows one of the brightest meteors captured. The scene is lit by the reddened light of the setting Moon outside the left of the frame.

Although the comet debris particles are travelling parallel to each other, the meteors appear to radiate from a spot on the sky in the constellation of Perseus (here seen very low on the horizon and partly covered by the VLT enclosures). This effect is due to perspective, as the parallel tracks seem to converge at a distance. The apparent origin in Perseus is what gives the Perseid meteor shower its name.

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