File:Hubble Spots White Dwarfs In Milky Way's Central Hub.jpg
[Upper right] - This is a small section of Hubble's view of the dense collection of stars crammed together in the galactic bulge. The region surveyed is part of the Sagittarius Window Eclipsing Extrasolar Planet Search (SWEEPS) field and is located 26,000 light-years away.
[Lower right] - Hubble uncovered extremely faint and hot white dwarfs. This is a sample of 4 out of the 70 brightest white dwarfs spied by Hubble in the Milky Way's bulge. Astronomers picked them out based on their faintness, blue-white color, and motion relative to our sun. The numbers in the inset images correspond to the white dwarfs' location in the larger Hubble view. Hubble's Advanced Camera for Surveys made the observations in 2004 and 2011-2013.Credit for Hubble Images: NASA, ESA, A. Calamida and K. Sahu (STScI), and the SWEEPS Science Team
Credit for Ground-based Image: A. Fujii