This object, V838 Mon, or Nova Monocerotis 2002, was in the news last month, with new HST images and a paper in Nature. It looked superficially like a nova, but it's got the wrong spectrum. It was wven touted as maybe the brightest star in the galaxy, when it was at peak brightness.
I'm posting this to tell you that I have written a webpage for this object:
V838 Mon. I have tabulated some of the reported data, such as position, distance (which is in dipsute), and nature of the progenitor star, with links to other pages, images, and research papers. It will, I hope, be of some interest to anyone who follows variable stars or novae.