Flamsteed Astronomy Society

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Part 10 page 8

Comet 17P/Holmes — November 14, 2007, by Tony Sizer.  

Canon EOS 300D body on 105mm Fluorite prime focus. 30 seconds exposure at ISO 1600

The ball of gas and dust surrounding the comet is expanding and getting dimmer.  

See Gary Kronk, & Sky & Telescope