Cyg_OB2m4_B-20210118-S001-R001-B-181534.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-01-18 09:15:35 13.51 0.017

Cyg_OB2m4_B-20210118-S001-R001-I-181137.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-01-18 09:11:39 10.94 0.002

Cyg_OB2m4_B-20210118-S001-R001-R-181302.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-01-18 09:13:03 8.827 0.004

Cyg_OB2m4_B-20210118-S001-R001-V-181418.fts