Supernova Suspect proves to be an Asteroid! 

A clear moonless night on  1999 April 18th enabled me to image a few galaxies in the Virgo Cluster.  Starting my observations at  6 Com  I first viewed M99 and M98  and then swept to the east and came across a  fine pair of galaxies just a few arc minutes apart. These were NGC 4298 a  mottled spiral galaxy and its companion NGC 4302 which is a slender edge on galaxy with a dark dust lane. They both formed such a striking pair and as  I hadn't imaged them  before I took a few deep exposures. After processing I compared the image with that on the Realsky CD-ROM (the digitised Palomar Sky Survey) and was intrigued to find what looked like a "new star" had appeared on my image.  Was this a supernova? Alas no,  Guy Hurst  editor of the Astronomer  identified the culprit as asteroid  8159 which happened to be gliding through  the field of view as the image was taken.