1. Nebular photometry on the plates of SERC (J) survey Creator: Polechová, Pavla Format: bez média and svazek Type: model:article and TEXT Subject: observations, nebular photometry, and plates of SERC Language: Czech Description: A method of constructing the homogenous catalogue of diffuse objects is outlined. For the present poster, SERC (i.e. blue) plates from the UK Schmidt Telescope Unit were used. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public