Wesley impact scar

Several days ago a comet hit Jupiter leaving a dark spot near one of its polar regions. Today this spot is still visible with a powerful telescope. Maybe if I have a high power Barlow lens I could have observed it visually. But fortunately there exist astrophotography, a technique that lets you observer indirectly what you can’t spot directly through a telescope.

In this same picture I include a Jupiter from the day before yesterday. The lack of atmospheric turbulence gave me a chance to get closer to the maximum theoretical resolution of a 6-inch telescope.

Jupiter 2009-08-15-and-16 150mm-EP14mm-450d

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