ASASSN-15se UT_date V mag_err 2015-10-21.60 >17.44 99.99 2015-10-25.60 13.04 0.01 2015-10-28.58 13.46 0.02 Matches to g=20.5 blue SDSS source http://skyserver.sdss.org/dr12/en/tools/chart/navi.aspx?ra=143.28913&dec=10.46714&scale=0.5&width=600&height=600