I believe it's data corruption, there is another of these at RA 06:08:55 Dec +22:47:22 that the Nibirutards are calling Nibiru.
I've sent an email to WWT to see if they know if it's from their software or data corruption from the DSS survey data used.
EDIT - I have actually found over 15 more of these mysterious red blobs and over a dozen blue ones, all in just a half hour looking around,
they are artifacts or corrupt data and many have a shadow of the carrier or
spider assembly that holds the secondary mirror in place above the telescope. If I looked long enough I have no doubt I could easily find many dozens more
of these.