Abstract

In this paper we use new CCD observations to examine the accuracy of the magnitude system we have adopted to define the galaxy sample being used to conduct the Southern Sky Redshift Survey Extension hereafter referred to as (SSRS2). The magnitude scale of the SSRS2 is based on the instrumental magnitudes of the nonstellar objects listed in the ST ScI Guide Star Catalog, converted to the B(0) (Zwicky) system. This was done using a linear relation derived from the comparison of objects in common with the photometric catalogue of Lauberts & Valentijn [The Surface Photometry Catalogue of the ESO-Uppsala Galaxies (European Southern Observatory, Munchen) (1989)]

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