Cyg_OB2m4_B-20181230-S001-R001-B-193828.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2018-12-30 10:38:29 11.19 0.008

Cyg_OB2m4_B-20181230-S001-R001-I-193443.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2018-12-30 10:34:44 10.06 0.002

Cyg_OB2m4_B-20181230-S001-R001-R-193558.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2018-12-30 10:36:00 10.69 0.002

Cyg_OB2m4_B-20181230-S001-R001-V-193713.fts