New way to weigh a white dwarf: Use Hubble Space Telescope

New way to weigh a white dwarf: Use Hubble Space Telescope

In this time-lapse movie from 8 Hubble Space Telescope images, in the blackness of space a white dot -- the white dwarf star Stein 2051 B -- moves in an arc as it passes in front of a distant star. Credit: NASA, ESA, and K. Sahu (STScI)

This time-lapse movie, made from eight Hubble Space Telescope images, shows the apparent motion of the white dwarf star Stein 2051 B as it passes in front of a distant star.

IMAGE: NASA, ESA, and K. Sahu (STScI)