A&A Supplement Series, Vol. 125, November I 1997, 445-451
Received January 6; accepted January 25, 1997
L. Kohoutek
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