SIMBAD references

We report the discovery of a low surface brightness (LSB) object serendipitously found during deep CCD imaging of a compact group of galaxies, Seyfert's Sextet, in the VR and I bands. The LSB object is located 2'.3 southwest from the group's center. Its surface brightness within the angular effective radii of r_eff(VR)=4".8 and r_eff(I)=4".8 is very low: µ_eff(VR)=25.28 mag.arcsec^–2 and µ_eff(I)=24.47 mag.arcsec^–2, respectively. The apparent magnitudes are m_AB(VR)=19.87 and m(I)=19.06. The object is most likely an LSB dwarf galaxy, but other possibilities are also discussed.