Some interesting numbers.
1. Astronomers predict that it's doomed to explode as a supernova soon, within 1,000 years or so ... (Conceivably, it's already happened!)
2. Using this setup's resolution of just 0.009 arcsecond ...
3. ... its diameter has shrunk by some 15% since 1993.
http://www.skyandtelescope.com/news/52184407.html