What is NGC 3603-B?
[[Image:NGC3603 core.jpg|thumb|250px|B is the brightest star just left of the three barely-resolved A parts at the centre in this [[Hubble Space Telescope|HST]] image of the central region of [[HD 97950]].]] '''NGC 3603-B''' ('''HD 97950B''') is a [[Wolf-Rayet star]] located at the centre of the [[HD 97950]] cluster in the [[NGC 3603]] [[HII region|star-forming region]]. It is about 20,000 [[light year]]s from [[Earth]]. It has the spectral type of WN6h and is among the [[List of most luminous stars|most luminous]] and [[List of most massive stars|massive]] stars known. WN6 indicates that there are ionized nitrogen lines that are strong in comparison to the ionized carbon lines. NGC 3603 is 132 times the mass of the [[Sun]]. It has a luminousity of 2,900,000. Although the star is very young, 1.5 million years old, it has lost a considerable fraction of it's initial masses. {{science-stub}} [[Category:Stars]]