Who knows? In all probability, it probably has, but as it is about 4,900 light years from us, it will take that long for it's demise to reach us.
VY Canis Majoris has an absolute magnitude of -9.4.
VY Canis Majoris is kinda beside Wezen(Delta Canis Majoris.) Find where it says VY
As of today (2009) there is no star larger than VY Canis Majoris - a galaxy is larger than VY Canis Majoris though.
VY Canis Majoris is about 4,900 light years from earth.
Scientists say that VY Canis Majoris is the biggest star we know so basically VY Canis Majoris is bigger than Kolob.
The biggest star yet is VY canis Majoris
VY Canis Majoris (Not Canis Majoris)
Canis Major
9,261,000,000 (9.2) Billion sun can fit in VY Canis Majoris.
As far as mass goes, R136a1 beats out VY Canis Majoris by 253 solar masses (265 solar masses for R136a1 vs Canis Majoris' 30). However, VY Canis Majoris beats out R136a1 in radius by about 1,385 solar radii (Canis Majoris is 1,420 solar radii vs R136a1's ~35).
mercy
VY Canis Majoris (VY CMa)