While I consider myself to be a woman astronomer, I have not always been one. Since I made much of my reputation with a different gender expression and remain in the field, I have to accept the fact that I am also a transgender astronomer, and as a representative of that small group, serve as an ambassador to the rest of the astronomical world.
While gradually (over 40 years!) transitioning from male to female, I have thought a lot about gender and its various facets, but when I volunteered to write a blog entry representing my gender minority for the Women in Astronomy blog, I realized that I hadn't been very systematic about it. It is likely that most readers don't have any trans* friends (that they know about), but this far into the 21st century, most thinking people are aware of our existence and might even know of one of us.
