BL_Lacertae-20181219-S001-R001-B-211522.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2018-12-19 12:15:23 13.13 0.092

BL_Lacertae-20181219-S001-R001-I-211139.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2018-12-19 12:11:40 12.04 0.012

BL_Lacertae-20181219-S001-R001-R-211254.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2018-12-19 12:12:55 13.61 0.024

BL_Lacertae-20181219-S001-R001-V-211408.fts