Roland

A growing number of astronomers present evidence that the pulsar wind nebula (PWN) 3C58 is much older than predicted by its proposed connection to the historical supernova of AD1181. There is also a great diversity of arguments. The strongest arguments rely heavily on the assumed distance of 3.2kpc. I have re-visited the distance determination of 3C58 based on new HI data from the Canadian Galactic Plane Survey and our recent improvements of the
rotation curve of the outer Milky Way Galaxy. I also used newly determined distances to objects in the neighbourhood, which are based on trigonometric parallax. I have derived a new more reliable distance estimate of 2 kpc for 3C58. This makes the connection between the PWN and the SN1181 once again much more viable.