Hubble Looks at ʻOumuamua
Interstellar asteroid ʻOumuamua on 2017 December 12.
Each color represents one of five exposures used to look at ʻOumuamua. Background stars and galaxies look like they are smeared because Hubble was tracking tiny, faint ʻOumuamua, located roughly in the center of the image as a little white dot. If you don't know where to look, it is pretty much impossible to find ʻOumuamua's signal in the raw data. Once the cosmic rays are removed and it's all added up, though, a clear speck emerges.
Data from Proposal 15405 were used to create this image.
The only camera and filter used was WFC3/UVIS F350LP.
List of files used:
idqn04hjq_flc, idqn04hkq_flc, idqn04hnq_flc, idqn04hqq_flc, idqn04hsq_flc
I did not use geometric distortion corrected images because it seemed to make it that much harder to find ʻOumuamua.
North is 63.81° counter-clockwise from up.