Young astronomers at work tells a bit about the Gray family. Including 10-year-old Nathan's discovery. It has since been confirmed, so he has overturned his sister's record as the youngest discoverer of a supernova.
Until there was a confirmation by getting a spectrum from a large telescope, Nathan's discovery had to remain officially a “supernova candidateâ€. However Lina Tomasella and Leonardo Tartaglia of the Padova-Asiago Supernova Group have since provided the confirmation. And it's been given the provisional designation of Type II-peculiar. (I can't honestly say I've ever come across one of those before!)