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Ion Tail - Halley's Comet Target Name: Comet Halley Produced by: NASA/JPL Copyright: NASA Copyright Free Policy Date Released: March 5, 1986 The document "Halley's Comet" contains additional information related to this image. Name Type Width x Height Size haltail.gif GIF 1280 x 897 1M The well developed tail structure of Comet Halley was captured in this image taken March 5, 1986. At this point in its orbit, Halley had recently passed perihelion on February 9, 1986 and was at its most active. This 10 minute exposure was recorded at Mauna Kea Observatory on IIIa-J emulsion without filters. This image shows both the ion and dust tail, with the latter stretching for over 6 degrees on the sky.

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