I read that in some fields the authors of research papers are ordered alphabetically, and therefore having a surname with the letter “A” may give us an advantage since we would be among the first authors (and the first authors get more recognition than the others). Is having a surname which begins with the letter “A” a big advantage for a researcher in astronomy/astrophysics? If I have a surname which begins with the letter “M”, and I haven’t published any paper yet, would changing my surname to a name which begins with the letter “A” be a good idea? Or would the advantage gained be too small to make it worth the effort? Approximately what percentages of research papers in astronomy/astrophysics order their authors … … purely alphabetically? … half by contribution and half alphabetically? … purely by contribution?