NGC 7026
NGC 7026 is a planetary nebula located 6000 light-years away, in the constellation of Cygnus. This image was produced by the Hubble Space Telescope using the Wide Field and Planetary Camera 2 aboard. The central star of the planetary nebula has a spectral type of [WO3], indicating a spectrum similar to that of an oxygen-rich Wolf–Rayet star. An analysis of "Gaia" data suggests that it is a binary system.