DO Leo outburst (Eclipsing Z Cam star) YYYYMMDD(UT) mag observer 20120126.483 17.783V (Mike Simonsen) 20120127.437 17.298V (Mike Simonsen) 20120129.513 15.842V (Mike Simonsen) 20120130.461 15.903V (Mike Simonsen) 20120131.455 15.706V (Mike Simonsen)