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Tags: AAT, Comet Halley, comet


Despite the media hype, Comet Halley was a disappointment when it returned in 1985-86. This was not a surprise to astronomers, who knew at its last return in 1910 that the comet would not be well placed when it reappeared 76 years later. On this occasion the comet entered the inner solar system and was always very distant from Earth. This image made with the Anglo-Australian Telescope shows the first signs of a tail as it approached the Sun in late 1985.

After it rounded the Sun it reappeared in the southern sky. Not only was this very close to the horizon for many northern hemisphere skywatchers, but the comet was also seen against the bright backdrop of the Milky Way. The result was that the comet was never conspicuous and the media were disappointed, mainly because they predicted that some vivid, sparkling apparition would streak across the sky. However, the numerous visitors who came to Australia to see it enjoyed the spectacle, subtle though it was. This wide angle picture was made with a normal camera in April, 1986, and as well as the comet it shows the the brightest part of the Milky Way.

Credit: David Malin

© Australian Astronomical Observatory