Photographed from the NASA Hubble Space Telescope, this is one of the first clear views of one of the hottest known stars in our Milky Way galaxy, which resides in the center of the nebula ngc2440. The super hot star, called the nucleus of ngc2440, is the brightest white dot in the center of the photo. In previous ground based photographs, the earth's atmosphere smeared out the light from the center of the nebula. By clearly separating the light from the nebula and the star, astronomers have been able to determine the temperature of the star, a torrid 200,000 or more (Celsius).