[^] Yes I think it is very possible. I have heard that some people can do this, although I am not too sure how.
I was wondering, can you choose how your astral body appears to other people or if you don't want them to see you? Whenever I do get to astral traveling succesfully, there are some people who I want to be recognized by in spirit form (kinda like transparent or translucent), and other people not to be able to see me at all.