Edward Charles Pickering standing with “Pickering’s Harem”, also known as the “Harvard Computers”, his all woman team of astronomical assistants. They arrangement worked out well for both parties. For Pickering, because they had far better penmanship than his graduate students and because he could pay them well under what he would pay a man. And for the women, because the task still paid more and was far preferable to factory work. Over the length of their time with Mr. Prickering, these women would go on to classify some 400,000 stars, and many of them would make great astronomical discoveries of their own. These were the women who numbered the stars.