SEARCH FOR ENVELOPES OF SOME STELLAR PLANETARY-NEBULAE, SYMBIOTIC STARS AND FURTHER EMISSION-LINE OBJECTS

At 17 emission-line objects, mainly PN, the seeing disc has been compa red with that of some surrounding stars (CCD frames taken through B, V , R, [OIII] 5007 Angstrom and H alpha filters). Nebulosities were foun d at: CPD-5308315 (0.'' 5 in x-direction, 0.'' 4 in y-direction), H 2- 2 (0.'' 3, 1.'' 4) and CPD-56 degrees 8032 (1.'' 3, 1.'' 3). Further s mall nebulosities are possible at MWC 560, MWC 574, LS IV-12 degrees 1 11 and HR Del, but they should be considered as rather uncertain. Besi des, the known outer nebula at CPD-53 degrees 8315 (2 condensations, 1 1.'' 6 separation, PA = 146 degrees) was observed, and the author disc overed a circular halo of 50 '' around Hb 6-both outer nebulosities vi sible in the light of H alpha.