Approaching Comet Hartley-2 On September 25, 2010 at a distance of 41 million km, the spacecraft Deep Impact took this image of the comet Hartley 2 about 40 days before closest approach on November 4. The graph to the r

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Date: 2010-10-24 06:33:12 Comets Observational astronomy Comet Deep Impact 103P/Hartley Cosmic distance ladder Great Comet Comet Holmes Spacecraft Astronomy Spaceflight		Approaching Comet Hartley-2 On September 25, 2010 at a distance of 41 million km, the spacecraft Deep Impact took this image of the comet Hartley 2 about 40 days before closest approach on November 4. The graph to the r Add to Reading List Source URL: spacemath.gsfc.nasa.gov Download Document from Source Website File Size: 88,50 KB Share Document on Facebook

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