A&A Supplement Series, Vol. 125, November I 1997, 445-451
Received January 6; accepted January 25, 1997
Send offprint request: L. Kohoutek
Hamburger Sternwarte, Gojenbergsweg 112, D-21029 Hamburg, Germany
At 17 emission-line objects, mainly PN, the seeing disc has been compared with that of some surrounding stars (CCD frames taken through B, V, R, [OIII] 5007 Å and filters). Nebulosities were found at: ( in x-direction, in y-direction), H 2-2 (, ) and (, ). Further small nebulosities are possible at MWC 560, MWC 574, and HR Del, but they should be considered as rather uncertain. Besides, the known outer nebula at (2 condensations, separation, ) was observed, and the author discovered a circular halo of 50'' around Hb 6 - both outer nebulosities visible in the light of .
keywords: planetary nebulae: general; stars: symbiotic; stars: novae; stars: horizontal branch