Portal:Astronomy/Picture/Week 19 2010
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< Portal:Astronomy | Picture
![](http://upload.luquay.com/wikipedia/commons/thumb/d/df/Comet-Hale-Bopp-29-03-1997_hires_adj.jpg/300px-Comet-Hale-Bopp-29-03-1997_hires_adj.jpg)
Comet Hale-Bopp (formally designated C/1995 O1) was arguably the most widely observed comet of the twentieth century, and one of the brightest seen for many decades. Here is a photo of 1997.