Source: wikibot/william-h-jefferys

= William H. Jefferys
{wiki=William_H._Jefferys}

William H. Jefferys is a notable American astronomer and a professor known for his work in the field of astrophysics and astronomy. He has made significant contributions to various areas of research, including the dynamics of galaxies and the study of dark matter. He may also have been involved in educational efforts, mentoring students and promoting astronomical sciences. If you're looking for specific information or achievements related to William H.