Overview of the prominence. a: SDO/AIA 211 Å observation. Solar limb is plotted using a white line and the black box outlines the field of view of panels d–f. b and c: observations of STEREO-A/EUVI in 304 Å and 195 Å. The white dotted line indicates the solar limb observed from SDO and the white circle marks the position of the bubble. The blue box in the bottom-right corner shows the relative locations of STEREO-A, STEREO-B, and SDO at 06:05 UT. The coordinates of the map in panels b and c are the heliographic coordinates from STERO-A. The white plus symbols in panels a–c mark the same point on the surface from different viewpoints, which is derived by the solarsoft WCS Routines in SSW. d: Hα observation from NVST. The black box outlines the field of view of Figs. 2 and 3. The white arrow points to the bubble of interest. e: SDO/AIA 171 Å observation. f: SDO/AIA 193 Å observation. The solar limb is outline by white lines in panels d–f.