2525 20160701171706.0 ASTROimport-682 Lampens, P. 2004 Photometry of the δ Scuti star DG Leo: Preliminary results New uvby photoelectric photometry has been acquired for the triple star DG Leo at two different observatories equipped with analogous instrumentation. A preliminary period analysis indicates the presence of at least 3 close δ Scuti frequencies (10-12 c/d, 3-6 mmag) and a slow variation. This slow variation fits quite well with half the orbital period of the spectroscopic binary; the noise level in the amplitude spectrum is only 3 - 4 mmag (after prewhitening). Garrido, R. Parrao, L. Peña, J. Arentoft, T. Frémat, Y. Revista Mexicana de Astronomia y Astrofisica Conference Series 21 2004 73-74 http://esoads.eso.org/abs/2004RMxAC..21...73L published in NONREF