But its even a stretch to call it a UFO, unless maybe the ‘F’ stands for floating or flashing.
Astronomers observed the unidentified object appear and then disappear over a 200 day period, estimating the distance between 130 light-years and 11 billion light-years away.
From the light it gave off, they have ruled out galaxy, supernova, and everything they have on record.
Flat out, they don’t know what it was/is.
“The shape of the light curve is inconsistent with microlensing. In addition to being inconsistent with all known supernova types, is not matched to any spectrum in the Sloan Digital Sky Survey database.”
“We suggest that the transient may be one of a new class” is the conclusion of the report.